Date: Thu, 22 Mar 2012 11:34:04 -0700 From: Steven Schlansker <stevenschlansker@gmail.com> To: freebsd-fs <freebsd-fs@freebsd.org> Subject: Importing spool wedges machine hard Message-ID: <12E6E0DC-DE17-4815-9ED4-C5DC86BAD445@gmail.com>
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Hi all,
I have a backup server running
FreeBSD d0028.nessops.net 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan 3 07:46:30 UTC 2012 root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
There is a single ZFS pool used for storage, configured as such:
pool: tank
id: 13753647290422885969
state: ONLINE
action: The pool can be imported using its name or numeric identifier.
config:
tank ONLINE
raidz2-0 ONLINE
aacd1p1 ONLINE
aacd2p1 ONLINE
aacd3p1 ONLINE
aacd4p1 ONLINE
aacd5p1 ONLINE
aacd6p1 ONLINE
aacd7p1 ONLINE
aacd8p1 ONLINE
raidz2-1 ONLINE
aacd9p1 ONLINE
aacd10p1 ONLINE
aacd11p1 ONLINE
aacd12p1 ONLINE
aacd13p1 ONLINE
aacd14p1 ONLINE
aacd15p1 ONLINE
aacd16p1 ONLINE
The setup was running just fine for about a month and a half until yesterday when the machine hung hard. No problem, reset, comes back fine. Few hours later, it crashes again. Now any attempt to import the pool spins the disks for about 15-20 minutes and then wedges the machine. Before it hangs, "top" reports that the zpool command is dancing between active (CPU0), tx->tx, and bio states. Then the machine becomes unresponsive (both over the network and at the console) and must be reset.
I'm seeing some old diagnostics instructions from http://www.mail-archive.com/zfs-discuss@opensolaris.org/msg18818.html including running zdb -e -d and zdb -e -b, and they are running right now.
But I'm hopeful someone has more concrete advice, as this is a pretty important system to me.
Thanks!
Steven
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