I need help in GPFS mirroring ,below is the environment :
Two buildings 1 mile apart (prod and DR )
I have a GPFS 2.3 cluster for oracle 10G RAC .
RAc node1 sits in building A , RAC nodeB is building B
Storage : IBM 8100 Storage array/SAN in Building A and second 8100 Array in building B .
currunet configuration :
GPFS is using vpaths off of 8100SAN in buidling A and is active ,working fine .
I want to mirror GPFS file systems or NSD`s to 8100 stoarge in buidling B .
cuurent vpaths mapped to NSDs to GPFS are :
vpath0 none gpfs1nsd
vpath1 00cacecea78d56ab gpfs2nsd
vpath2 00cacecea78d5a04 gpfs3nsd
vpath3 00cacecea78d5d2d gpfs4nsd
vpath4 00cacecea78d6053 gpfs5nsd
vpath5 00cacecea78d6380 gpfs6nsd
vpath6 00cacecea78d6785 gpfs7nsd
vpath7 00cacecea78d6ada gpfs8nsd
I`m thinking off allocating same number of vpaths from 8100 in buidling B .
Where can I find steps to mirror -GPFS to these new vpath ? What is equalent of extendvg in AIX to GPFS so that it will know about the new disks ?
how to test if mirroring works or not like in AIX we mirror the volume group and then break the mirror ?
Also systems would be IO intesive ,any advice on how to lay down disks for best performance ?