mirror of
git://sourceware.org/git/lvm2.git
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560 lines
22 KiB
Plaintext
560 lines
22 KiB
Plaintext
Version 2.01.15 -
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=================================
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Tidy lvmconf.sh.
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Add format1 dev_write debug messages.
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Add clustered VG attribute to report.
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Move lvconvert parameters into struct lvconvert_params.
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Add clustered VG flag to LV lock requests.
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Change LV locking macros to take lv instead of lvid.
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Prepend 'cluster' activation parameter to mirror log when appropriate.
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Pass exclusive flag to lv_activate and on to target activation code.
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Prevent snapshot creation in a clustered VG for now.
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Factor out adjusted_mirror_region_size() and generate_log_name_format().
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Move compose_log_line() into mirror directory.
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Factor out _get_library_path().
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Don't kill idling clvmd threads.
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clvmd no longer takes out locks for non-clustered LVs.
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Recognise ATA over Ethernet (aoe) devices.
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Version 2.01.14 - 4th August 2005
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=================================
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Fix lvconvert PV parameter in help string.
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Prevent snapshots getting activated in a clustered VG.
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Separate out _build_dev_string.
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Move zero_lv to toollib.
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Fix pool format handler to work with pv segment code.
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Version 2.01.13 - 13th July 2005
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================================
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Fix pvmove segment splitting.
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Abstract vg_validate.
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Only make one attempt at contiguous allocation.
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Fix lvm1 format metadata read.
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Fix lvm1 format non-mirror lvcreate.
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Version 2.01.12 - 14th June 2005
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================================
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Various allocation-related pvmove fixes.
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Log an error if clvmd can't resolve a host name got from CCS.
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Fix potential spin loop in clvmd.
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Version 2.01.11 - 13th June 2005
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================================
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Added lvmconf.sh.
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Use matchpathcon mode parameter.
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Don't defer closing dead FDs in clvmd.
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Remove hard-coded 64k text metadata writing restriction.
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Make VG name restrictions consistent.
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Introduce lvconvert. So far only removes mirror images.
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Allow mirror images to be resized.
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Allow mirror images to have more than one segment.
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Centralise restrictions on LV names.
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Always insert an intermediate layer for mirrors.
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Suppress hidden LVs from reports unless --all is given.
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Use square brackets for hidden LVs in reports.
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Allow the creation of mirrors with contiguous extents.
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Always perform sanity checks against metadata before committing it to disk.
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Split lv_extend into two steps: choosing extents + allocation to LV(s).
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Add mirror log region size to metadata.
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Use list_iterate_items throughout and add list*back macros.
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Introduce seg_ macros to access areas.
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Add segtype_is_ macros.
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Support tiny metadata areas for pool conversions.
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Mirror activation handles disk log as well as core.
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Activation code recognises mirror log dependency.
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Add mirror_log and regionsize fields to report.
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Fix non-orphan pvchange -u.
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Fix vgmerge to handle duplicate LVIDs.
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Move archiver code from tools into library.
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vgscan/change/display/vgs automatically create metadata backups if needed.
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Merge cloned allocation functions.
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Fix contiguous allocation policy with linear.
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Cope with missing format1 PVs again.
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Remove lists of free PV segments.
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Simplify pv_maps code and remove slow bitset algorithm.
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Red-Hat-ify the clvmd rhel4 initscript.
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%Zu->%zu
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Fix loopfiles alias alloc & mem debugging.
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Un-inline dbg_strdup.
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lv_reduce tidying.
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Remove some unnecessary parameters.
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Introduce seg_is macros.
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Version 2.01.10 - 3rd May 2005
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==============================
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Don't create backup and archive dirs till needed.
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Reinstate full PV size when removing from VG.
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Support loopfiles for testing.
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Tidy lv_segment interface.
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pv_segment support.
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vgchange --physicalextentsize
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Internal snapshot restructuring.
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Remove unused internal non-persistent snapshot option.
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Allow offline extension of snapshot volumes.
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Move from 2-step to 3-step on-disk metadata commit.
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Scan ramdisks too and allow non-O_DIRECT fallback.
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Annotate, tidy and extend list.h.
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Alignment tidying.
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Make clvmd work around some "bugs" in gulm's node state notifications.
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Tidy clvmd's SIGHUP handler
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Version 2.01.09 - 4th April 2005
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================================
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Add --ignorelockingfailure to vgmknodes.
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clvmd: Don't allow user operations to start until the lvm thread is fully up.
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clvmd-gulm: set KEEPALIVE on sockets.
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Version 2.01.08 - 22nd March 2005
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=================================
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Add clustered attribute so vgchange can identify clustered VGs w/o locking.
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Improve detection of external changes affecting internal cache.
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Add 'already in device cache' debug message.
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Add -a to pvdisplay -C.
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Avoid rmdir opendir error messsages when dir was already removed.
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Tighten signal handlers.
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Avoid some compiler warnings.
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Additional rename failure error message.
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read/write may be macros.
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clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
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Version 2.01.07 - 8th March 2005
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================================
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Cope with new devices appearing by rescanning /dev if a uuid can't be found.
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Remove DESTDIR from LVM_SHARED_PATH.
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clvmd fixes: make FDs close-on-exec
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gulm unlocks VG & orphan locks at startup in case they are stale
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gulm now unlocks VG & orphan locks if client dies.
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Version 2.01.06 - 1st March 2005
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================================
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Suppress 'open failed' error messages during scanning.
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Option to suppress warnings of file descriptors left open.
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Fix default value of metadatacopies in documentation (2->1).
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Fix clvmd-gulm locking.
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./configure --enable-debug now enables debugging code in clvmd.
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Fix clvmd-gulm node up/down code so it actually works.
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clvmd-gulm now releases locks when shut down.
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Version 2.01.05 - 18th February 2005
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====================================
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Static binary invokes dynamic binary if appropriate.
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Make clvmd config check a little more tolerant.
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gulm clvmd can now cope with >1 message arriving in a TCP message.
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Version 2.01.04 - 9th February 2005
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===================================
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Add fixed offset to imported pool minor numbers.
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Update binary pathnames in clvmd_init_rhel4.
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lvm2cmd.so should skip the check for open fds.
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Remove unused -f from pvmove.
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Gulm clvmd doesn't report "connection refused" errors.
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clvmd does a basic config file sanity check at startup.
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Fix potential thread shutdown race in clvmd.
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Version 2.01.03 - 1st February 2005
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===================================
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More 64-bit display/report fixes.
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More informative startup mesg if can't create /etc/lvm.
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Fix snapshot device size bug (since 2.01.01).
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clvmd announces startup and cluster connection in syslog.
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Gulm clvmd doesn't hang trying to talk to a rebooted node.
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Gulm clvmd doesn't print cman error on startup.
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Version 2.01.02 - 21st January 2005
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===================================
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Update clvmd_init_rhel4: use lvm.static and don't load dlm.
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Fix some size_t printing.
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Fix 64 bit xlate consts.
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Split out pool sptype_names to avoid unused const.
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Always fail if random id generation fails.
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Recognise gnbd devices.
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Fix clvmd startup bug introduced in cman/gulm amalgamation.
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Improve reporting of node-specific locking errors.
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Version 2.01.01 - 19th January 2005
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===================================
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Fix clvmd lv_info_by_lvid open_count.
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Store snapshot and origin sizes separately.
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Update vgcreate man page.
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Version 2.01.00 - 17th January 2005
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===================================
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Fix vgscan metadata auto-correction.
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Only ask libdevmapper for open_count when we need it.
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Adjust RHEL4 clvmd init script priority.
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Enable building of CMAN & GULM versions of clvmd into a single binary
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Version 2.00.33 - 7th January 2005
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==================================
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pvcreate wipes first 4 sectors unless given --zero n.
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gulm clvmd now uses new ccsd key names.
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gulm clvmd now doesn't ignore the first node in cluster.conf
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Improve clvmd failure message if it's already running.
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Allow user to kill clvmd during initialisation.
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Fix off-by-one error in cluster_locking that could cause read hangs.
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Version 2.00.32 - 22nd December 2004
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====================================
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Drop static/dl restriction for now.
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Fix an error fprintf.
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Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
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Fix device reference counting on re-opens.
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Ignore sysfs symlinks when DT_UNKNOWN.
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Add clvmd init script for RHEL4.
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Skip devices that are too small to be PVs.
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Fix pvchange -x segfault with lvm2-format orphan.
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Cope with empty msdos partition tables.
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Add CONTRIBUTORS file.
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Version 2.00.31 - 12th December 2004
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====================================
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Reopen RO file descriptors RW if necessary.
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Version 2.00.30 - 10th December 2004
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====================================
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Additional device-handling debug messages.
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Additional verbosity level -vvvv includes line numbers and backtraces.
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Verbose messages now go to stderr not stdout.
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Close any stray file descriptors before starting.
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Refine partitionable checks for certain device types.
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Allow devices/types to override built-ins.
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Fix lvreduce man page .i->.I
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Fix vgsplit man page title.
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Fix clvmd man makefile.
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Extend dev_open logging.
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Make clvmd_fix_conf.sh UNDOable.
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Version 2.00.29 - 27th November 2004
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====================================
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xlate compilation fix.
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Version 2.00.28 - 27th November 2004
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====================================
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Fix partition table & md signature detection.
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Minor configure/makefile tidy.
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Export version.h from tools for clvmd.
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Version 2.00.27 - 24th November 2004
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====================================
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Trap large memory allocation requests.
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Fix to partition table detection code.
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Improve filter debug mesgs.
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Make clvmd_fix_conf.sh UNDOable
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Version 2.00.26 - 23rd November 2004
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====================================
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Improve pool debugging stats.
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Detect partition table signature.
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pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
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Separate out md superblock detection code.
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Prevent snapshot origin resizing.
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Improve a vgremove error message.
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Update some man pages.
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Allow y/n with -ae args (exclusive activation).
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Fixes to lvcreate vgname parsing.
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Fix dm_name string size calculation.
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Improve clvmd error reporting during startup.
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Make clvmd cope with large gaps in node numbers IDs.
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Make clvmd initialisation cope better with debugging output.
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Tidy clvmd socket callbacks so all work happens outside main loop.
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clvmd -V now displays lvm version too.
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Add optional gulm build for clvmd
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Version 2.00.25 - 29th September 2004
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=====================================
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Fix return code from rm_link for vgmknodes.
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Make clvmd LV hash table thread-safe.
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Fix clvmd locking so it will lock out multiple users on the same node.
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Fix clvmd VG locking to it can cope with multiple VG locks.
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Remove spurious trailing dot in lvreduce man page.
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Fix vgremove locking.
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Version 2.00.24 - 16th September 2004
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=====================================
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Fix pool_empty so it really does empty the memory pool.
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Rename old segtypes files to segtype.
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Some fixes to memory debugging code.
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Exclude internal commands formats & segtypes from install.
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Version 2.00.23 - 15th September 2004
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=====================================
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Export dm name build & split functions.
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Use O_NOATIME on devices if available.
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Write log message when each segtype/format gets initialised.
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New commands 'segtypes' and 'formats'.
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Suppress pvmove abort message in test mode.
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Improve pvcreate/remove device not found error message.
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Allow pvmove to move data within the same PV.
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Describe how pvmove works on man page.
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Test for incompatible format/segtype combinations in lv_extend.
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Fix lvchange example on man page.
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Version 2.00.22 - 3rd September 2004
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====================================
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Fix /dev/vgname perms.
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Restructure xlate.h.
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Add clvmd man page.
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Version 2.00.21 - 19th August 2004
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==================================
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Update cnxman-socket.h from cman.
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Recognise iseries/vd devices.
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Use 'make install_cluster' to install cluster extensions only.
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Cope with DT_UNKNOWN in sysfs.
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Fix extents_moved metadata size comment.
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Remove duplicate line in pvremove help text.
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Support variable mirror region size.
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Support PE ranges in pvmove source PV.
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Fixes to as-yet-unused LV segment splitting code.
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Change alloc_areas to pe_ranges and allow suppression of availability checks.
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Add dev_size column to pvs.
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Add report columns for in-kernel device number.
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Version 2.00.20 - 3 July 2004
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=============================
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More autoconf fixes.
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Fix device number handling for 2.6 kernels.
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Version 2.00.19 - 29 June 2004
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==============================
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Reduce severity of setlocale failure message.
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Recognise argv[0] "initrd-lvm" (pld-linux).
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Make -O2 configurable.
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Added --disable-selinux to configure script.
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LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
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Add init_debug to clvmd.
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Version 2.00.18 - 24 June 2004
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==============================
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Fix vgchange activation.
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Add cluster support.
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Version 2.00.17 - 20 June 2004
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==============================
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configure --enable-fsadm to try out fsadm. fsadm is not tested yet.
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Display all filtered devices, not just PVs, with pvs -a.
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Fix sync_dir() when no / in filename
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vgcfgbackup -f accepts template with %s for VG name.
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Extend hash functions to handle non-null-terminated data.
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Add local activation support.
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Tidy relative paths in makefile includes.
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fsadm support for fsck and resizing - needs testing.
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Add read-only GFS pool support.
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Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
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Fix rounding of large diplayed sizes.
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Suppress decimal point when using units of sectors/bytes.
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Additional kernel target checks before pvmove & snapshot creation.
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Add i2o_block.
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Version 2.00.16 - 24 May 2004
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=============================
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Set area_count within alloc_lv_segment.
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Remove error labels from lvresize.
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Fix a pvs error path.
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xxchange -ae for exclusive activation.
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Don't return non-zero status if there aren't any volume groups.
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Add --alloc argument to tools.
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Rename allocation policies to contiguous, normal, anywhere, inherit.
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nextfree becomes normal; anywhere isn't implemented yet.
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LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
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Additional status character added to vgs to indicate allocation policy.
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Add reset_fn to external_locking.
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Ensure presence of virtual targets before attempting activating.
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Attempt to fix resizing of snapshot origins.
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Restructure lvresize, bringing it closer to lvcreate.
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A quick sanity check on vg_disk struct when read in. More checks needed.
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Only include visible LVs in active/open counts.
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Add virtual segment types, zero and error. A large sparse device can be
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constructed as a writeable snapshot of a large zero segment.
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Add --type to lvcreate/resize.
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Push lv_create & alloc policy up to tool level.
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Fix pvdisplay return code.
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Detect invalid LV names in arg lists.
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Reporting uses line-at-a-time output.
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lvm2 format sets unlimited_vols format flag.
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Internal-only metadata flag support.
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Basic checking for presence of device-mapper targets.
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Separate out polldaemon.
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Revise internal locking semantics.
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Move find_pv_by_name to library.
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Rename move->copy.
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Add devices to segments report.
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Begin separating out segment code. There's a lot of change here.
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Compress any (obsolete) long LVM1 pvids encountered.
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Support for tagged config files.
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Don't abort operations if selinux present but disabled.
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Fix typo in configure which left HAVE_LIBDL unset.
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Version 2.00.15 - 19 Apr 2004
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=============================
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configure --with-owner= --with-group= to avoid -o and -g args to 'install'
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Version 2.00.14 - 16 Apr 2004
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=============================
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Use 64-bit file functions by default.
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Version 2.00.13 - 16 Apr 2004
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=============================
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Set devices/md_component_detection = 1 to ignore devices containing md
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superblocks. [Luca Berra]
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Ignore error setting selinux file context if fs doesn't support it.
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Version 2.00.12 - 14 Apr 2004
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=============================
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Install a default lvm.conf into /etc/lvm if there isn't one already.
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Allow different installation dir for lvm.static (configure --staticdir=)
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Fix inverted selinux error check.
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Recognise power2 in /proc/devices.
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Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
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Version 2.00.11 - 8 Apr 2004
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============================
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Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
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to run lvm1 binaries if running a 2.4 kernel without device-mapper.
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Version 2.00.10 - 7 Apr 2004
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============================
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More fixes for static build.
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Add basic selinux support.
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Fix sysfs detection.
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Version 2.00.09 - 31 Mar 2004
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=============================
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Update copyright notices for Red Hat.
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Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
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Add LVM1-style colon output to vgdisplay.
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lvchange --refresh to reload active LVs.
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Add string display to memory leak dump.
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Add locking flags & memlock option.
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Add list_versions to library.
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Ignore open hidden LVs when checking if deactivation is OK.
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Suppress move percentage when device inactive.
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Add lv_info_by_lvid.
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Various tidy-ups to the build process.
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Rebaseline internal verbose level.
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Add --nolocking option for read operations if locking is failing.
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Add option to compile into a library.
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When compiled without libdevmapper, only print warning message once.
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Fix lvreduce PV extent calculations.
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Fix DESTDIR to work with configure path overrides.
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Always use / as config file separator & rename internal config file variables.
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Add support for tagging PV/VG/LVs and hosts.
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Fix rare bug in recognition of long cmdline argument forms.
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Add basic internationalisation infrastructure.
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Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
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Update autoconf files.
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Add sysfs block device filtering for 2.6 kernels.
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Update refs for move to sources.redhat.com.
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Friday 14th November 2003
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=========================
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Some bug fixes & minor enhancements, including:
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Backwards compatibility with LVM1 metadata improved.
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Missing man pages written.
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Tool error codes made more consistent.
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vgmknodes written.
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O_DIRECT can be turned off if it doesn't work in your kernel.
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dumpconfig to display the active configuration file
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You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
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If your root filesystem is on an LV, you should run one of those two
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commands to fix up the special files in /dev in your real root filesystem
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after finishing with your initrd. Also, remember you can use
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'vgchange --ignorelockingfailure' on your initrd if the tool fails because
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it can't write a lock file to a read-only filesystem.
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Wednesday 30th April 2003
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=========================
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A pvmove implementation is now available for the new metadata format.
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When running a command that allocates space (e.g. lvcreate), you can now
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restrict not only which disk(s) may be used but also the Physical Extents
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on those disks. e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
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Monday 18th November 2002
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========================
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The new format of LVM metadata is ready for you to test!
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We expect it to be more efficient and more robust than the original format.
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It's more compact and supports transactional changes and replication.
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Should things go wrong on a system, it's human-readable (and editable).
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Please report any problems you find to the mailing list,
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linux-lvm@sistina.com. The software has NOT yet been thoroughly
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tested and so quite possibly there'll still be some bugs in it.
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Be aware of the disclaimer in the COPYING file.
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While testing, we recommend turning logging on in the configuration file
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to provide us with diagnostic information:
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log {
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file="/tmp/lvm2.log"
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level=7
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activation=1
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}
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You should schedule regular backups of your configuration file and
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metadata backups and archives (normally kept under /etc/lvm).
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Please read docs/example.conf and "man lvm.conf" to find out more about
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the configuration file.
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To convert an existing volume group called vg1 to the new format using
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the default settings, use "vgconvert -M2 vg1". See "man vgconvert".
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-M (or --metadatatype in its long form) is a new flag to indicate which
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format of metadata the command should use for anything it creates.
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Currently, the valid types are "lvm1" and "lvm2" and they can be
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abbreviated to "1" and "2" respectively. The default value for this
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flag can be changed in the global section in the config file.
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Backwards-compatible support for the original LVM1 metadata format is
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maintained, but it can be moved into a shared library or removed
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completely with configure's --with-lvm1 option.
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Under LVM2, the basic unit of metadata is the volume group. Different
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volume groups can use different formats of metadata - vg1 could use
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the original LVM1 format while vg2 used the new format - but you can't
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mix formats within a volume group. So to add a PV to an LVM2-format
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volume group you must run "pvcreate -M2" on it, followed by "vgextend".
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With LVM2-format metadata, lvextend will let you specify striping
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parameters. So an LV could consist of two or more "segments" - the
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first segment could have 3 stripes while the second segment has just 2.
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LVM2 maintains a backup of the current metadata for each volume group
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in /etc/lvm/backup, and puts copies of previous versions in
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/etc/lvm/archive. "vgcfgbackup" and "vgcfgrestore" can be used to
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create and restore from these files. If you fully understand what
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you're doing, metadata can be changed by editing a copy of a current
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backup file and using vgcfgrestore to reload it.
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Please read the pvcreate man page for more information on the new
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format for metadata.
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All tools that can change things have a --test flag which can be used
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to check the effect of a set of cmdline args without really making the
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changes.
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What's not finished?
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====================
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The internal cache. If you turn on debugging output you'll see lots of
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repeated messages, many of which will eventually get optimised out.
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--test sometimes causes a command to fail (e.g. vgconvert --test) even
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though the real command would work: again, fixing this is waiting for
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the work on the cache.
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Several of the tools do not yet contain the logic to handle full
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recovery: combinations of pvcreate and vgcfgrestore may sometimes be
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needed to restore metadata if a tool gets interrupted or crashes or
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finds something unexpected. This applies particularly to tools that
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work on more than one volume group at once (e.g. vgsplit).
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Display output. Some metadata information cannot yet be displayed.
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Recovery tools to salvage "lost" metadata directly from the disks:
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but we hope the new format will mean such tools are hardly ever needed!
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