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Full Discussion: Bad disk, how to replace ?
Operating Systems Solaris Bad disk, how to replace ? Post 303018646 by solaris_1977 on Tuesday 12th of June 2018 01:16:51 PM
Old 06-12-2018
Bad disk, how to replace ?

Hello,

I see hard and transport errors on all disks under treso pool and looks like some data corruption too. I want to take backup before, I reboot and replace disk. As of now, there are no slots free on server, so one option is, to break mirror, remove second disk (I need two disks, because data is 400GB). I have two spare disks, will insert in those slots, mount and copy data.
Can somebody help me to understand, if below setup shows me that I can detach disks without disturbing data and mount ?
Code:
pool: treso
 state: DEGRADED
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: http://www.sun.com/msg/ZFS-8000-8A
 scrub: resilver completed after 0h42m with 0 errors on Thu Mar 24 12:11:13 2016
config:

        NAME        STATE     READ WRITE CKSUM
        zones2      DEGRADED    17     0     0
          raidz1    DEGRADED    17     0     0
            c1t4d0  ONLINE       0     0     0
            c1t5d0  DEGRADED    35     0     0  too many errors
            c1t6d0  ONLINE       0     0     0
            c1t8d0  FAULTED      2     0     0  too many errors

errors: 4 data errors, use '-v' for a list
#

Thanks
 

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dgcfgbackup(1M) 														   dgcfgbackup(1M)

NAME
dgcfgbackup - create or update VxVM volume group configuration backup file SYNOPSIS
/usr/sbin/dgcfgbackup [-f dg_conf_path ] dg_name DESCRIPTION
The dgcfgbackup command saves the VxVM configuration for a disk group in a default or alternate configuration backup file (see the descrip- tion of the-f option). By default, dgcfgbackup is run automatically each time that a VxVM command changes the VxVM configuration. In this case, it always uses the default configuration backup file. An existing default configuration backup file is renamed with an extension of .old. Options and Arguments dg_name Specifies the name of a disk group. -f dg_conf_path Saves the configuration using an alternate file name specified by dg_conf_path. If this option is omitted, the default file name is /etc/vxvmconf/dg_name.conf. EXIT CODES
dgcfgbackup exits with a zero status on successful completion. An non-zero exit status indicates that errors occurred when information from the disk group was being accessed. EXAMPLES
Back up VxVM configuration information for disk group testdg in the default backup file /etc/vxvmconf/testdg.conf: dgcfgbackup testdg Back up VxVM configuration information for disk group datadg in the alternate configuration backup file /tmp/datadg.backup: dgcfgbackup -f /tmp/datadg.backup datadg NOTES
It is recommended that any alternate configuration backup file be created in the root file system (as is the case with the default path name). This facilitates disk group recovery during maintenance mode, such as after a system crash. AUTHOR
dgcfgbackup was developed by the Hewlett-Packard Company. SEE ALSO
dgcfgrestore(1M) VxVM 5.0.31.1 24 Mar 2008 dgcfgbackup(1M)
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