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89f4f91d |
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05-Mar-2024 |
Alan Somers <asomers@FreeBSD.org> |
zfsd: Use vdev prop values for fault/degrade thresholds ZED uses vdev props for setting disk fault/degrade thresholds, this patch enables zfsd to use the same vdev props for these same tasks. OpenZFS on Linux is using vdev props for ZED disk fault/degrade thresholds. Originally the thresholds supported were for io and checksum events and recently this was updated to process slow io events as well, see https://github.com/openzfs/zfs/commit/cbe882298e4ddc3917dfaf239eca475fe06d62d4 This patch enables us to use the same vdev props in zfsd as ZED uses. After this patch is merged both OSs will use the same vdev props to set retirement thresholds. It's probably important to note that the threshold defaults are different between OS. I've kept the existing defaults inside zfsd and DID NOT match them to what ZED does. Differential Revision: https://reviews.freebsd.org/D44043 MFC after: 2 weeks Relnotes: yes Reviewed by: asomers, allanjude Sponsored by: Axcient Submitted by: Alek Pinchuk <apinchuk@axcient.com>
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7a0c41d5 |
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28-May-2016 |
Alan Somers <asomers@FreeBSD.org> |
zfsd(8), the ZFS fault management daemon Add zfsd, which deals with hard drive faults in ZFS pools. It manages hotspares and replements in drive slots that publish physical paths. cddl/usr.sbin/zfsd Add zfsd(8) and its unit tests cddl/usr.sbin/Makefile Add zfsd to the build lib/libdevdctl A C++ library that helps devd clients process events lib/Makefile share/mk/bsd.libnames.mk share/mk/src.libnames.mk Add libdevdctl to the build. It's a private library, unusable by out-of-tree software. etc/defaults/rc.conf By default, set zfsd_enable to NO etc/mtree/BSD.include.dist Add a directory for libdevdctl's include files etc/mtree/BSD.tests.dist Add a directory for zfsd's unit tests etc/mtree/BSD.var.dist Add /var/db/zfsd/cases, where zfsd stores case files while it's shut down. etc/rc.d/Makefile etc/rc.d/zfsd Add zfsd's rc script sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c Fix the resource.fs.zfs.statechange message. It had a number of problems: It was only being emitted on a transition to the HEALTHY state. That made it impossible for zfsd to take actions based on drives getting sicker. It compared the new state to vdev_prevstate, which is the state that the vdev had the last time it was opened. That doesn't make sense, because a vdev can change state multiple times without being reopened. vdev_set_state contains logic that will change the device's new state based on various conditions. However, the statechange event was being posted _before_ that logic took effect. Now it's being posted after. Submitted by: gibbs, asomers, mav, allanjude Reviewed by: mav, delphij Relnotes: yes Sponsored by: Spectra Logic Corp, iX Systems Differential Revision: https://reviews.freebsd.org/D6564
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