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321 lines
13 KiB
Plaintext
321 lines
13 KiB
Plaintext
Version 2.00.27 -
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====================================
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Improve filter debug mesgs.
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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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