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When detaching a writecache, use the cleaner setting by default to writeback data prior to suspending the lv to detach the writecache. This avoids potentially blocking for a long period with the device suspended. Detaching a writecache first sets the cleaner option, waits for a short period of time (less than a second), and checks if the writecache has quickly become clean. If so, the writecache is detached immediately. This optimizes the case where little writeback is needed. If the writecache does not quickly become clean, then the detach command leaves the writecache attached with the cleaner option set. This leaves the LV in the same state as if the user had set the cleaner option directly with lvchange --cachesettings cleaner=1 LV. After leaving the LV with the cleaner option set, the detach command will wait and watch the writeback progress, and will finally detach the writecache when the writeback is finished. The detach command does not need to wait during the writeback phase, and can be canceled, in which case the LV will remain with the writecache attached and the cleaner option set. When the user runs the detach command again it will complete the detach. To detach a writecache directly, without using the cleaner step (which has been the approach previously), add the option --cachesettings cleaner=0 to the detach command.
This tree contains the LVM2 and device-mapper tools and libraries. This is development branch, for stable 2.02 release see stable-2.02 branch. For more information about LVM2 read the changelog in the WHATS_NEW file. Installation instructions are in INSTALL. There is no warranty - see COPYING and COPYING.LIB. Tarballs are available from: ftp://sourceware.org/pub/lvm2/ https://github.com/lvmteam/lvm2/releases The source code is stored in git: https://sourceware.org/git/?p=lvm2.git git clone git://sourceware.org/git/lvm2.git mirrored to: https://github.com/lvmteam/lvm2 git clone https://github.com/lvmteam/lvm2.git git clone git@github.com:lvmteam/lvm2.git Mailing list for general discussion related to LVM2: linux-lvm@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm Mailing lists for LVM2 development, patches and commits: lvm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/lvm-devel lvm2-commits@lists.fedorahosted.org (Read-only archive of commits) Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits Mailing list for device-mapper development, including kernel patches and multipath-tools: dm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel Website: https://sourceware.org/lvm2/ Report upstream bugs at: https://bugzilla.redhat.com/enter_bug.cgi?product=LVM%20and%20device-mapper or open issues at: https://github.com/lvmteam/lvm2/issues The source code repository used until 7th June 2012 is accessible using CVS: cvs -d :pserver:cvs@sourceware.org:/cvs/lvm2 login cvs cvs -d :pserver:cvs@sourceware.org:/cvs/lvm2 checkout LVM2 The password is cvs.