Date: Thu, 26 Nov 2009 11:30:06 GMT From: kot@softlynx.ru To: freebsd-fs@FreeBSD.org Subject: Re: kern/140888: [zfs] boot fail from zfs root while the pool resilvering Message-ID: <200911261130.nAQBU65B077048@freefall.freebsd.org>
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The following reply was made to PR kern/140888; it has been noted by GNATS.
From: kot@softlynx.ru
To: bug-followup@FreeBSD.org
Cc:
Subject: Re: kern/140888: [zfs] boot fail from zfs root while the pool
resilvering
Date: Thu, 26 Nov 2009 14:02:12 +0300 (MSK)
I found, that it keep fail booting if has at least one device not ONLINE
and pool state DEGRADED.
For instance
[root@livecd8:/]# zpool status
pool: tank0
state: DEGRADED
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank0 DEGRADED 0 0 0
raidz1 DEGRADED 0 0 0
replacing DEGRADED 0 0 0
12996219703647995136 UNAVAIL 0 298 0 was
/dev/gpt/QM00002
gpt/SN023432 ONLINE 0 0 0
gpt/SN091234 ONLINE 0 0 0
errors: No known data errors
considered as degraded even it has replace gpt/QM00002 with new gpt/SN023432.
Detaching UNAVAIL component turns pool to ONLINE state back.
[root@livecd8:/]# zpool detach tank0 12996219703647995136
[root@livecd8:/]# zpool status
pool: tank0
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
gpt/SN023432 ONLINE 0 0 0
gpt/SN091234 ONLINE 0 0 0
errors: No known data errors
This case lets to boot from tank0.
It also keeps booting fine in case of component is manually turns to
OFFLINE state in any combination, for instance like
[root@fresh-inst:~]# zpool status
pool: tank0
state: DEGRADED
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
using 'zpool clear' or replace the device with 'zpool replace'.
see: http://www.sun.com/msg/ZFS-8000-9P
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank0 DEGRADED 0 0 0
raidz1 DEGRADED 0 0 0
gpt/SN023432 ONLINE 0 0 0
gpt/SN091234 OFFLINE 0 921 0
errors: No known data errors
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