How do I use SyncMirror in the simulator?

SyncMirror first appeared in Data ONTAP 6.2

SyncMirror requires that additional plexes are p.ut onto a different FC adapter. For an explanation of what plexes are and how they work please see your Data ONTAP documentation.
You can add disks to a different FC adapter using the setup.sh script. Please note the following:

You can only have a maximum of 28 disks per simulator regardless of the virtual FC adapter they are attached to.
Unlike Filers the simulator doesn’t support SyncMirror with clusters.
For simplicity you should have your first plex on adapter 0, and the “mirror” second plex on adapter 1.

The installation process is simple:

Use the setup.sh script to create additional disks on adapter
Run the simulator. Make sure SyncMirror is licensed.
Use vol mirror command to create the plex.

An example:

NOTE: As the various simulator versions come with different sized disks you should examine your configuration before blindly following this example :-)
I’ve performed an unclustered install. This has resulted in 2x90MB disks on adapter 0 and no other disks in the system.
I will use the setup.sh script to create an additional 2x90MB disks on adapter 1 and then create the mirror.


[root@localhost /sim]# ./setup.sh –z –u d –e 2 –r 1





Script version X (Jul/2003)


Loading defaults


Unattended install or reconfig.


Disk adapter set to 1


Adding 2 disks


Configuration:


  <snip>


Please ensure the simulator is not running.


Adding 2 additional disk(s).


Creating ,disks/v1.0:NETAPP__:VD-35MB-FZ-520__:11462600:124544


Creating ,disks/v1.1:NETAPP__:VD-35MB-FZ-520__:11462601:124544


Shelf file Shelf:DiskShelf14 updated


Starting simulator to check for Linux segfault issue...


Ignore the next few lines between ------ marks


------------------------


./setup.sh: line 770: 11133 Aborted        ./maytag.L >/dev/null 2>&1


------------------------


segfault issue not detected.


Complete. From the simulator directory run runsim.sh to start the simulator.


[root@localhost /sim]# ./runsim.sh





NetApp Release 6.4.1: Fri May  2 17:52:42 PDT 2003


Copyright (c) 1992-2003 Network Appliance, Inc.


Starting boot on Thu Jul 17 14:15:22 GMT 2003 


[snip lots of console output until the console prompt]


sim> vol status -r


Volume vol0 (online, noparity) (block checksums)


  Plex /vol0/plex0 (online, normal, active)


    RAID group /vol0/plex0/rg0 (normal)





      RAID Disk Device  HA    SHELF BAY CHAN  Used (MB/blks)    


      --------- ------  --------------- ----  --------------


      data      v0.0    v0    0     0   FC:A  120/246784 


      data      v0.1    v0    0     1   FC:A  120/246784  








Pool1 spare disks





RAID Disk       Device  HA    SHELF BAY CHAN  Used (MB/blks)


---------       ------  --------------- ----  --------------


Spare disks for block or zoned checksum volumes


spare           v1.0    v1    0     0   FC:A  120/246784


spare           v1.1    v1    0     1   FC:A  120/246784





Pool0 spare disks (empty)


sim> vol mirror vol0

Thu Jul 17 14:21:01 GMT [raid.vol.disk.add.done:notice]: Addition of
disk v1.1 (S/N 82231501) to volume vol0 has completed successfully

Thu Jul 17 14:21:01 GMT [raid.vol.disk.add.done:notice]: Addition of
disk v1.0 (S/N 82231500) to volume vol0 has completed successfully

Thu Jul 17 14:21:03 GMT [raid.mirror.resync.snapcrtok:info]: vol0:
created mirror resynchronization snapshot mirror_resync.0717142101(sim)


Thu Jul 17 14:21:03 GMT [raid.rg.resync.start:notice]: /vol0/plex2/rg0: start resynchronization (level 0)


Thu Jul 17 14:21:03 GMT [raid.mirror.resync.start:notice]: /vol0: start resynchronize to target /vol0/plex2


Thu Jul 17 14:24:41 GMT [raid.rg.resync.done:notice]: /vol0/plex2/rg0: resynchronization completed in 3:38.03


Thu Jul 17 14:24:44 GMT [fmmbx_instanceWorke:info]: Disk v0.0 is a primary mailbox disk


Thu Jul 17 14:24:44 GMT [fmmbx_instanceWorke:info]: Disk v1.0 is a primary mailbox disk


Thu Jul 17 14:24:44 GMT [raid.mirror.resync.done:notice]: /vol0: resynchronization completed in 3:40.90


sim> vol status -r


Volume vol0 (online, noparity, mirrored) (block checksums)


  Plex /vol0/plex0 (online, normal, active)


    RAID group /vol0/plex0/rg0 (normal)





      RAID Disk Device  HA    SHELF BAY CHAN  Used (MB/blks)


      --------- ------  --------------- ----  --------------


      data      v0.0    v0    0     0   FC:A  120/246784


      data      v0.1    v0    0     1   FC:A  120/246784





  Plex /vol0/plex2 (online, normal, active)


    RAID group /vol0/plex2/rg0 (normal)





      RAID Disk Device  HA    SHELF BAY CHAN  Used (MB/blks)


      --------- ------  --------------- ----  --------------


      data      v1.0    v1    0     0   FC:A  120/246784


      data      v1.1    v1    0     1   FC:A  120/246784








Pool1 spare disks (empty)





Pool0 spare disks (empty)


[Now perform a disk
simpull v0.1 to demonstratre that SyncMirror is protecting the RAID group]