Date: Sat, 29 Oct 2016 14:36:32 +0300 From: Lev Serebryakov <lev@FreeBSD.org> To: freebsd-fs <freebsd-fs@freebsd.org> Subject: ZFS L2ARC checksum errors after compression Message-ID: <921575537.20161029143626@serebryakov.spb.ru>
index | next in thread | raw e-mail
[-- Attachment #1 --]
Hello freebsd-fs,
System is FreeBSD 10.3-STABLE #0 r307523: Mon Oct 17 22:36:27 MSK 2016.
I have a small L2ARC (185G) on SSD for my RAIDZ1 pool.
When "ALLOC" on this L2ARC becomes greater than "SIZE" (it is compression
works, am I right?), zfs-stats shows, that number of checkum errors start
to raise. For example, I have this "zfs-stats -L" output now:
L2 ARC Summary: (DEGRADED)
Passed Headroom: 153.46k
Tried Lock Failures: 9.65k
IO In Progress: 4.33k
Low Memory Aborts: 9
Free on Write: 1.77k
Writes While Full: 15.20k
R/W Clashes: 0
Bad Checksums: 104.95k
IO Errors: 0
SPA Mismatch: 4.10m
And "Bad Checksums" goes up rather fast, it becomes 105.31k when I compose
this message!
Looks like here is some problems with L2ARC compression.
--
Best regards,
Lev mailto:lev@FreeBSD.org
[-- Attachment #2 --]
-----BEGIN PGP MESSAGE-----
Version: GnuPG v2.0.22 (MingW32)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=mvf6
-----END PGP MESSAGE-----
home |
help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?921575537.20161029143626>
