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ZFS root system unbootable after disk failure

wgkorb-JavaNetApr 30 2010 — edited May 3 2010
Hello,

I have a V240 with root disks on a ZFS mirror (c1t0d0s0 & c1t1d0s0). The second of these two drives failed, and a subsequent attempt to reboot the system resulted in this error:
Rebooting with command: boot -s
Boot device: /pci@1c,600000/scsi@2/disk@0,0:a  File and args: -s
SunOS Release 5.10 Version Generic_142900-03 64-bit
Copyright 1983-2009 Sun Microsystems, Inc.  All rights reserved.
Use is subject to license terms.
NOTICE:
  ***************************************************
  *  This device is not bootable!                   *
  *  It is either offlined or detached or faulted.  *
  *  Please try to boot from a different device.    *
  ***************************************************
NOTICE: spa_import_rootpool: error 22
Cannot mount root on /pci@1c,600000/scsi@2/disk@0,0:a fstype zfs

panic[cpu0]/thread=180e000: vfs_mountroot: cannot mount root
On the theory that there was a bad block on this remaining drive, I booted from DVD and used format to run a surface analysis (refresh - read then write). That process found exactly one bad block which was remapped, but I am still unable to boot.

I also tried to import the filesystem while running on the DVD miniroot, but that failed, too.

If nothing else, I would like to import the filesystem and copy some key files before a reinstall (e.g., /etc/passwd & other config files). If worse comes to worst, I can recover from backups, but that will be a long and tedious process.

Any suggestions?

Thanks,
Bill
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Locked on May 31 2010
Added on Apr 30 2010
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