EMC device group

[Jim Smith]

Im settting up an SG 2 node cluster using EMC and SRDF and ive created my volume groups and now I need to setup an EMC device group so I can check the failover before I setup the SG packages and config. Can someone shed some light on the commands to do this ?

[Stefan Farrelly · Accepted solution]

To create a symmetrix device group use;

symdg create -type RDF1

Then add your disks (from your VG) to it using;

symld -g add pd /dev/rdsk/xxxx

repeat for each disk until all added.To display the group which youve just created do;

symld -g list

and it will show all the disks. To test the failover do;

symrdf -g failover

And it will pull the disks into your node, then you can activate the volume group and mount its filesystems (the first time you do this you will need to import the volume group from these disks). Then you can go ahead and setup your SG packages so this all happens automatically in future.

[Jim Smith]

Those commands worked a treat. thanks!