"zpool clear" just clears the list of errors (and # of checksum errors)
from its stats. It does not modify the filesystem in any manner. You run
"zpool clear" to make the zpool forget that it ever had any issues.
-Paul
Jonathan Loran wrote:
Hi list,
First off:
# cat /etc/release
Solaris 10 6/06 s10x_u2wos_09a X86
Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 09 June 2006
Here's an (almost) disaster scenario that came to life over the past
week. We have a very large zpool containing over 30TB, composed
(foolishly) of three concatenated iSCSI SAN devices. There's no
redundancy in this pool at the zfs level. We are actually in the
process of migrating this to a x4540 + j4500 setup, but since the
x4540 is part of the existing pool, we need to mirror it,
then detach it so we can build out the replacement storage.
What happened was some time after I had attached the mirror to the
x4540, the scsi_vhci/network connection went south, and the
server panicked. Since this system has been up, over the past 2.5
years, this has never happened before. When we got the thing glued
back together, it immediately started resilvering from the beginning,
and reported about 1.9 million data errors. The list from zpool
status -v gave over 883k bad files. This is a small percentage of the
total number of files in this volume: over 80 million (1%).
My question is this: When we clear the pool with zpool clear, what
happens to all of the bad files? Are they deleted from the pool, or
do the error counters just get reset, leaving the bad files in tact?
I'm going to perform a full backup of this guy (not so easy on my
budget), and I would rather only get the good files.
Thanks,
Jon
- _____/ _____/ / - Jonathan Loran - -
- / / / IT Manager -
- _____ / _____ / / Space Sciences Laboratory, UC Berkeley
- / / / (510) 643-5146
jlo...@ssl.berkeley.edu <mailto:jlo...@ssl.berkeley.edu>
- ______/ ______/ ______/ AST:7731^29u18e3
------------------------------------------------------------------------
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
