bbs.hsiao.net 交流論壇

Posted: **Thu Apr 21, 2011 5:25 pm**

1. Find available devices (disks) using "format" command:

orazone01:/%format
Searching for disks...done


AVAILABLE DISK SELECTIONS:
       0. c3t3EDC40EB4E13BFC7d0 <LSI-LogicalVolume-3000 cyl 65533 alt 2 hd 64 sec 139>
          /pci@400/pci@2/pci@0/pci@e/scsi@0/iport@v0/disk@w3edc40eb4e13bfc7,0
       1. c3t3718410C46D7BFE8d0 <LSI-LogicalVolume-3000 cyl 65533 alt 2 hd 64 sec 139>
          /pci@400/pci@2/pci@0/pci@e/scsi@0/iport@v0/disk@w3718410c46d7bfe8,0
       2. c4t2d3 <drive not available>
          /pci@500/pci@2/pci@0/pci@a/SUNW,emlxs@0/fp@0,0/ssd@w202500a0b875f936,3
Specify disk (enter its number):

2. Choose the unused device(s) to create a new pool:

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zpool create zonepool c3t3EDC40EB4E13BFC7d0

3. Use "zpool status -v" to check pool status and device information:

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orazone01:/%zpool status -v 
  pool: rpool
 state: ONLINE
 scrub: none requested
config:

        NAME                       STATE     READ WRITE CKSUM
        rpool                      ONLINE       0     0     0
          c3t3718410C46D7BFE8d0s0  ONLINE       0     0     0

errors: No known data errors

  pool: zonepool
 state: ONLINE
 scrub: none requested
config:

        NAME                     STATE     READ WRITE CKSUM
        zonepool                 ONLINE       0     0     0
          c3t3EDC40EB4E13BFC7d0  ONLINE       0     0     0

errors: No known data errors

4. Use "df" to check disk block and file information and verify new pool is in the list:

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orazone01:/%df -h
Filesystem             size   used  avail capacity  Mounted on
rpool/ROOT/root_ds     272G   5.8G   261G     3%    /
/devices                 0K     0K     0K     0%    /devices
ctfs                     0K     0K     0K     0%    /system/contract
proc                     0K     0K     0K     0%    /proc
mnttab                   0K     0K     0K     0%    /etc/mnttab
swap                    50G   816K    50G     1%    /etc/svc/volatile
objfs                    0K     0K     0K     0%    /system/object
sharefs                  0K     0K     0K     0%    /etc/dfs/sharetab
/platform/sun4v/lib/libc_psr/libc_psr_hwcap2.so.1
                       266G   5.8G   261G     3%    /platform/sun4v/lib/libc_psr.so.1
/platform/sun4v/lib/sparcv9/libc_psr/libc_psr_hwcap2.so.1
                       266G   5.8G   261G     3%    /platform/sun4v/lib/sparcv9/libc_psr.so.1
fd                       0K     0K     0K     0%    /dev/fd
rpool/ROOT/root_ds/var
                       272G   199M   261G     1%    /var
swap                    50G    17M    50G     1%    /tmp
swap                    50G    56K    50G     1%    /var/run
rpool/export           272G    23K   261G     1%    /export
rpool/export/home      272G   1.1G   261G     1%    /export/home
rpool                  272G    96K   261G     1%    /rpool
zonepool               274G    21K   274G     1%    /zonepool

Posted: **Fri Dec 09, 2011 2:16 pm**

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%zpool create -f apppool mirror c1t2d0 c1t3d0

%zpool status -v
  pool: apppool
 state: ONLINE
 scan: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        apppool     ONLINE       0     0     0
          mirror-0  ONLINE       0     0     0
            c1t2d0  ONLINE       0     0     0
            c1t3d0  ONLINE       0     0     0

errors: No known data errors

Posted: **Thu Mar 27, 2014 5:02 pm**

Create a new ZFS storage pool with mirrors for 6 disks:

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%zpool create logpool mirror c0t2d0 c0t3d0 mirror c0t4d0 c0t5d0 mirror c0t6d0 c0t7d0

Check pool status:

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%zpool status -v 
  pool: logpool
 state: ONLINE
 scrub: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        logpool     ONLINE       0     0     0
          mirror    ONLINE       0     0     0
            c0t2d0  ONLINE       0     0     0
            c0t3d0  ONLINE       0     0     0
          mirror    ONLINE       0     0     0
            c0t4d0  ONLINE       0     0     0
            c0t5d0  ONLINE       0     0     0
          mirror    ONLINE       0     0     0
            c0t6d0  ONLINE       0     0     0
            c0t7d0  ONLINE       0     0     0

errors: No known data errors

  pool: rpool
 state: ONLINE
 scrub: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        rpool       ONLINE       0     0     0
          c0t0d0s0  ONLINE       0     0     0

errors: No known data errors

Check logpool size:

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%df -h /logpool
Filesystem             size   used  avail capacity  Mounted on
logpool                821G    18K   821G     1%    /logpool

Posted: **Sat Jul 18, 2015 2:01 pm**

One device in the mirrored pool seemed to be broke and the server sends out email every night.

The status shows:

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cahtoh02:/root%zpool status
  pool: rpool
 state: DEGRADED
status: One or more devices are unavailable in response to persistent errors.
        Sufficient replicas exist for the pool to continue functioning in a
        degraded state.
action: Determine if the device needs to be replaced, and clear the errors
        using 'zpool clear' or 'fmadm repaired', or replace the device
        with 'zpool replace'.
        Run 'zpool status -v' to see device specific details.
  scan: scrub repaired 0 in 1h2m with 0 errors on Sun Jul 12 04:02:38 2015
config:

        NAME        STATE     READ WRITE CKSUM
        rpool       DEGRADED     0     0     0
          mirror-0  DEGRADED     0     0     0
            c6d0s0  UNAVAIL      0     0     0
            c5d0s0  ONLINE       0     0     0

errors: No known data errors

I decided to remove the unavailable device out of the rpool.

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cahtoh02:/root%zpool detach rpool c6d0s0

Check the status again:

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cahtoh02:/root%zpool status             
  pool: rpool
 state: ONLINE
status: The pool is formatted using an older on-disk format. The pool can
        still be used, but some features are unavailable.
action: Upgrade the pool using 'zpool upgrade'. Once this is done, the
        pool will no longer be accessible on older software versions.
  scan: scrub repaired 0 in 1h2m with 0 errors on Sun Jul 12 04:02:38 2015
config:

        NAME      STATE     READ WRITE CKSUM
        rpool     ONLINE       0     0     0
          c5d0s0  ONLINE       0     0     0

errors: No known data errors

Later I can just attach a new device to the pool as a mirror device.

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cahtoh02:/root%zpool create -f rpool mirror c5d0s0 c6d0s0 (or whateve the device name is)

In the meantime, I can run zpool upgrade.

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cahtoh02:/root%zpool upgrade rpool
This system is currently running ZFS pool version 35.

Successfully upgraded 'rpool' from version 33 to version 35

bbs.hsiao.net 交流論壇

Creating new ZFS pool(s)

Creating new ZFS pool(s)

Creating new ZFS pool(s) with mirrored disks

Creating new ZFS pool(s) - appint03 logpool

Remove a device from rpool mirror