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ONTAP 7-Mode Transition

Mounting Solaris host LUNs with ZFS file systems after transition

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After transitioning Solaris host LUNs with ZFS file systems from Data ONTAP operating in 7-Mode to clustered Data ONTAP, you must mount the LUNs.

For copy-based transitions, you perform these steps after completing the Storage Cutover operation in the 7-Mode Transition Tool (7MTT).

For copy-free transitions, you perform these steps after the Import Data & Configuration operation in the 7MTT is complete.

  1. Discover your new clustered Data ONTAP LUNs by rescanning the host.

    1. Identify the FC Host Ports (type fc-fabric):
      #cfgadm –l

    2. Unconfigure the 1st fc-fabric port:
      #cfgadm –c unconfigure c1

    3. Unonfigure the second fc-fabric port:
      #cfgadm –c unconfigure c2

    4. Repeat the steps for other fc-fabric ports.

    5. Verify that the information about the host ports and their attached devices is correct:
      # cfgadm –al

    6. Reload the driver:
      # devfsadm –Cv # devfsadm –i iscsi

  2. Verify that your clustered Data ONTAP LUNs have been discovered:

    sanlun lun show The lun-pathname values for the clustered Data ONTAP LUNs should be the same as the lun-pathname values for the 7-Mode LUNs prior to transition. The mode column should display “C” instead of “7”.

    # sanlun lun show
controller(7mode)/                    device                                            host                  lun
vserver(Cmode)       lun-pathname     filename                                          adapter    protocol   size    mode
--------------------------------------------------------------------------------------------------------------------------
vs_sru17_5           /vol/zfs/zfs2    /dev/rdsk/c5t600A0980383030444D2B466542485935d0s2 scsi_vhci0 FCP        6g      C
vs_sru17_5           /vol/zfs/zfs1    /dev/rdsk/c5t600A0980383030444D2B466542485934d0s2 scsi_vhci0 FCP        6g      C
vs_sru17_5           /vol/ufs/ufs2    /dev/rdsk/c5t600A0980383030444D2B466542485937d0s2 scsi_vhci0 FCP        5g      C
vs_sru17_5           /vol/ufs/ufs1    /dev/rdsk/c5t600A0980383030444D2B466542485936d0s2 scsi_vhci0 FCP        5g      C

  3. Check for zpools that are available to import:

    zpool import

    # zpool import
  pool: n_vg
    id: 3605589027417030916
 state: ONLINE
action: The pool can be imported using its name or numeric identifier.
config:

        n_vg                                     ONLINE
          c0t600A098051763644575D445443304134d0  ONLINE
          c0t600A098051757A46382B445441763532d0  ONLINE

  4. Import the zpools that were used for transition by pool name or using the pool ID:

    • zpool import pool-name

    • zpool import pool-id

    # zpool list
no pools available

# zpool import
  pool: n_pool
    id: 5049703405981005579
 state: ONLINE
action: The pool can be imported using its name or numeric identifier.
config:

        n_pool                                   ONLINE
          c0t60A98000383035356C2447384D396550d0  ONLINE
          c0t60A98000383035356C2447384D39654Ed0  ONLINE

# zpool import n_pool

    +

    # zpool import 5049703405981005579

[59] 09:55:53 (root@sunx2-shu04) /tmp
# zpool list
NAME     SIZE  ALLOC   FREE  CAP  HEALTH  ALTROOT
n_pool  11.9G  2.67G  9.27G  22%  ONLINE  -

  5. Check whether the zpool is online by doing one of the following:

    • zpool status

    • zpool list

    # zpool status
  pool: n_pool
 state: ONLINE
 scan: none requested
config:

        NAME                                     STATE     READ WRITE CKSUM
        n_pool                                   ONLINE       0     0     0
          c0t60A98000383035356C2447384D396550d0  ONLINE       0     0     0
          c0t60A98000383035356C2447384D39654Ed0  ONLINE       0     0     0

errors: No known data errors

    +

    # zpool list
NAME     SIZE  ALLOC   FREE  CAP  HEALTH  ALTROOT
n_pool  11.9G  2.67G  9.27G  22%  ONLINE  -

  6. Verify the mount points by using one of the following commands:

    • zfs list

    • df –ah

    # zfs list
NAME           USED  AVAIL  REFER  MOUNTPOINT
n_pool        2.67G  9.08G   160K  /n_pool
n_pool/pool1  1.50G  2.50G  1.50G  /n_pool/pool1
n_pool/pool2  1.16G  2.84G  1.16G  /n_pool/pool2

#df –ah
n_pool                  12G   160K   9.1G     1%    /n_pool
n_pool/pool1           4.0G   1.5G   2.5G    38%    /n_pool/pool1
n_pool/pool2           4.0G   1.2G   2.8G    30%    /n_pool/pool2