Solaris zfs mirror

Unanswered Question
Apr 29th, 2010

Hello,


I try to setup Solaris 10 on a UCS C200 M1 server.

2 identical disks inside, Solaris is installed.


Does someone know if this procedure is ok?


! root@sungrid03:/ # cat /etc/release
                       Solaris 10 10/09 s10x_u8wos_08a X86
           Copyright 2009 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                           Assembled 16 September 2009


! root@sungrid03:/ # df -h
Filesystem             size   used  avail capacity  Mounted on
rpool/ROOT/tank        228G   594M   223G     1%    /
/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                   8.4G   612K   8.4G     1%    /etc/svc/volatile
objfs                    0K     0K     0K     0%    /system/object
sharefs                  0K     0K     0K     0%    /etc/dfs/sharetab
/usr/lib/libc/libc_hwcap1.so.1
                       223G   594M   223G     1%    /lib/libc.so.1
fd                       0K     0K     0K     0%    /dev/fd
rpool/ROOT/tank/var    228G   2.0G   223G     1%    /var
swap                   8.4G     0K   8.4G     0%    /tmp
swap                   8.4G    16K   8.4G     1%    /var/run
rpool/export           228G    23K   223G     1%    /export
rpool/export/home      228G    21K   223G     1%    /export/home
rpool                  228G    34K   223G     1%    /rpool
! root@sungrid03:/ #
! root@sungrid03:/ # zpool list
NAME    SIZE   USED  AVAIL    CAP  HEALTH  ALTROOT
rpool   232G  3.55G   228G     1%  ONLINE  -


! root@sungrid03:/ # prtvtoc /dev/rdsk/c0t4d0s0 | fmthard -s - /dev/rdsk/c0t5d0s0
fmthard: Partition 2 specifies the full disk and is not equal
full size of disk.  The full disk capacity is 488359935 sectors.
fmthard:  New volume table of contents now in place.


! root@sungrid03:/ # zpool attach -f rpool c0t4d0s0 c0t5d0s0
Please be sure to invoke installgrub(1M) to make 'c0t5d0s0' bootable.


! root@sungrid03:/ # installgrub -m /boot/grub/stage1 /boot/grub/stage2 /dev/rdsk/c0t5d0s0
Partition 0 of the disk has an incorrect offset


! root@sungrid03:/ # zpool status rpool
  pool: rpool
state: ONLINE
status: One or more devices is currently being resilvered.  The pool will
        continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
scrub: resilver in progress for 0h1m, 72.86% done, 0h0m to go
config:

        NAME          STATE     READ WRITE CKSUM
        rpool         ONLINE       0     0     0
          mirror      ONLINE       0     0     0
            c0t4d0s0  ONLINE       0     0     0
            c0t5d0s0  ONLINE       0     0     0  2.59G resilvered

errors: No known data errors

Now, the mirror seems to be set up.

What I find annoying are these messages, they confuse me.


Also: why can't I see details about the 2nd disk?


! root@sungrid03:/ # format
Searching for disks...done


AVAILABLE DISK SELECTIONS:
       0. c0t4d0 <DEFAULT cyl 30398 alt 2 hd 255 sec 63>
          /pci@0,0/pci8086,3408@1/pci152d,896d@0/sd@4,0
       1. c0t5d0 <DEFAULT cyl 30399 alt 2 hd 255 sec 63>
          /pci@0,0/pci8086,3408@1/pci152d,896d@0/sd@5,0
Specify disk (enter its number): 0

partition> p
Current partition table (original):
Total disk cylinders available: 30398 + 2 (reserved cylinders)

Part      Tag    Flag     Cylinders         Size            Blocks
  0       root    wm       1 - 30397      232.85GB    (30397/0/0) 488327805
  1 unassigned    wm       0                0         (0/0/0)             0
  2     backup    wm       0 - 30397      232.86GB    (30398/0/0) 488343870
  3 unassigned    wm       0                0         (0/0/0)             0
  4 unassigned    wm       0                0         (0/0/0)             0
  5 unassigned    wm       0                0         (0/0/0)             0
  6 unassigned    wm       0                0         (0/0/0)             0
  7 unassigned    wm       0                0         (0/0/0)             0
  8       boot    wu       0 -     0        7.84MB    (1/0/0)         16065
  9 unassigned    wm       0                0         (0/0/0)             0

...

format> disk


AVAILABLE DISK SELECTIONS:
       0. c0t4d0 <DEFAULT cyl 30398 alt 2 hd 255 sec 63>
          /pci@0,0/pci8086,3408@1/pci152d,896d@0/sd@4,0
       1. c0t5d0 <DEFAULT cyl 30399 alt 2 hd 255 sec 63>
          /pci@0,0/pci8086,3408@1/pci152d,896d@0/sd@5,0
Specify disk (enter its number)[0]: 1
selecting c0t5d0
[disk formatted]
/dev/dsk/c0t5d0s0 is part of active ZFS pool rpool. Please see zpool(1M).
format> p
WARNING - This disk may be in use by an application that has
          modified the fdisk table. Ensure that this disk is
          not currently in use before proceeding to use fdisk.
format>


-- Nick

I have this problem too.
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Posted April 29, 2010 at 2:57 AM
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