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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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reboot(8)						      System Manager's Manual							 reboot(8)

Name
       reboot - automatic reboot procedures

Syntax
       /etc/reboot [ -n ] [ -q ]

Description
       The  ULTRIX  system is booted by loading a kernel image, usually into memory at location zero and transferring to zero.	Because the system
       is not reenterable, the kernel image must be read in from disk each time the system is bootstrapped.

       When the reboot of a running system is desired, is normally used.  If there are no users, can be used.  The command causes the disks to	be
       synced,	and  then  a multiuser reboot is initiated.  The system is booted and an automatic disk check is performed.  If the procedure suc-
       ceeds, the system is then brought up for the users.

       The system will reboot itself after a power failure or after a crash, provided auto-restart is enabled on your system.  A consistency check
       of the file systems will be performed and, unless the check fails, the system will resume multiuser operations.

Options
       -n   Prevents the disks from being synced.

       -q   Reboots quickly and ungracefully, without shutting down running processes first.

Files
       System code

See Also
       crash(8v), fsck(8), halt(8), init(8), newfs(8), rc(8), shutdown(8)

																	 reboot(8)
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