Hello, On 2/19/21 1:35 AM, Xavier wrote: > > The recently added cron "TRIM the first Sunday of every month" makes some SSD > drives crash. > > The problem appears on reasonnably busy and otherwise stable servers: > * with about 100 containers, > * each on a separate zvol, ext4 mounted with discard option, > * on a 6 identical drives raidz2. > > The issue has been observed on these drives: > * Micron_5100_MTFDDAK960TCB > * Samsung_SSD_850_EVO_1TB > * Samsung_SSD_860_EVO_1TB > > When affected (it not always the case), the systems could not complete the > cancelling of the trim with: > # zpool trim -c pool > Testing trim on one drive only, and reducing the rate to as low as 500000, > did not help.
I am trying to understand the symptom---what exactly do you mean the "SSD drives crash"? Is it just that you cannot cancel the trim? Or is there some other symptom? > > A reset seems the only solution, followed by a zpool trim -c after reboot. > > It would be wise to deactivate that cron by default, or at least to provide > some kind of convenient way to do so, like an option in /etc/default/zfs. > > Thank you. > > -- System Information: > Debian Release: 10.8 > APT prefers stable > APT policy: (900, 'stable'), (500, 'stable-updates'), (400, 'testing') > Architecture: amd64 (x86_64) > > Kernel: Linux 5.4.19 (SMP w/8 CPU cores) > Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, > TAINT_UNSIGNED_MODULE > Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), > LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8) > Shell: /bin/sh linked to /usr/bin/dash > Init: systemd (via /run/systemd/system) > > Versions of packages zfsutils-linux depends on: > ii libblkid1 2.33.1-0.1 > ii libc6 2.31-9 > ii libnvpair1linux 0.8.6-1~bpo10+1 > ii libudev1 241-7~deb10u6 > ii libuuid1 2.33.1-0.1 > ii libuutil1linux 0.8.6-1~bpo10+1 > ii libzfs2linux 0.8.6-1~bpo10+1 > ii libzpool2linux 0.8.6-1~bpo10+1 > ii python3 3.9.1-1 > ii zlib1g 1:1.2.11.dfsg-1 > > Versions of packages zfsutils-linux recommends: > ii lsb-base 10.2019051400 > ii zfs-dkms [zfs-modules] 2.0.2-1 > ii zfs-zed 0.8.6-1~bpo10+1 > > Versions of packages zfsutils-linux suggests: > pn nfs-kernel-server <none> > pn samba-common-bin <none> > pn zfs-initramfs | zfs-dracut <none> > > -- Configuration Files: > /etc/default/zfs changed [not included] > /etc/zfs/zfs-functions changed [not included] > > -- no debconf information You do not have a consistent set of zfs packages installed---please fully upgrade to 2.0.3 (or at least 2.0.2). You have zfs-dkms from unstable, and the rest of zfs from backports. I don't know exactly what you've done to get this setup, but it is not a supported configuration, and may be dangerous to your data. Best, Antonio
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