Storage Migration of vvr diskgroup
Hello I have VVR setup in our environment. I need to migrate storage of this vvr diskgroup. Could you please help me with steps. Can i do it with vxevac & do i need to stop replication before migration
Forum Discussion
Hi,
I agree that mirroring is very simple. I have done storage migration on few servers which are having application/data disk group with concat/stripe volumes.
This is first time i will be doing it on VVR RVG disk group volume which is having log plexes mirrored on 2 disks, i am not sure about the command to be used to mirror it same way as is exist.
v db-oradev-dcdr-ora_ogg1-vol db-oradev-dcdr-vvr01-dg_rvg ENABLED ACTIVE 1048576000 SELECT - fsgen
pl db-oradev-dcdr-ora_ogg1-vol-01 db-oradev-dcdr-ora_ogg1-vol ENABLED ACTIVE 1048576000 CONCAT - RW
sd db-oradev-dcdr-vvr01-dg01-01 db-oradev-dcdr-ora_ogg1-vol-01 db-oradev-dcdr-vvr01-dg01 0 1048576000 0 san_vc0_00018a ENA
pl db-oradev-dcdr-ora_ogg1-vol-02 db-oradev-dcdr-ora_ogg1-vol ENABLED ACTIVE LOGONLY CONCAT - RW
sd db-oradev-dcdr-vvr01-dg01-03 db-oradev-dcdr-ora_ogg1-vol-02 db-oradev-dcdr-vvr01-dg01 1258291200 512 LOG san_vc0_00018a ENA
pl db-oradev-dcdr-ora_ogg1-vol-03 db-oradev-dcdr-ora_ogg1-vol ENABLED ACTIVE LOGONLY CONCAT - RW
sd db-oradev-dcdr-vvr01-dg02-02 db-oradev-dcdr-ora_ogg1-vol-03 db-oradev-dcdr-vvr01-dg02 1048576000 512 LOG san_vc0_00018b ENAI hope below mirroring commands will work here.
#vxassist -g db-oradev-dcdr-vvr01-dg mirror db-oradev-dcdr-ora_ogg1-vol layout=nostripe db-oradev-dcdr-vvr01-dg03 db-oradev-dcdr-vvr01-dg04 logtype=dcm layout=log logdisk=db-oradev-dcdr-vvr01-dg03,db-oradev-dcdr-vvr01-dg04
or
#vxassist -g db-oradev-dcdr-vvr01-dg mirror db-oradev-dcdr-ora_ogg1-vol layout=nostripe alloc=db-oradev-dcdr-vvr01-dg03,db-oradev-dcdr-vvr01-dg04
If both these are not correct then it will be great help if you can suggest correction.
Hi Frankgfan,
Thank you for your update. Yes we are migrating storage by using mirroring only but here in VVR diskgroup, i am not sure about command syntax to be used to mirror volume which have DCM log seems to be mirror over 2 disks & I hope mirroring is fine for SRL volume as well to migrate storage. Sorry I am new to VVR.
Could you please assist me here. Below op for reference.
[root oradev0101d]# vxprint -htqg db-oradev-dcdr-vvr01-dg
dg db-oradev-dcdr-vvr01-dg default default 30250 1542272965.495.glb00hh0101ddm db-oradev-dcdr-vvr01-dg01 san_vc0_00018a auto 65536 3302948560 -
dm db-oradev-dcdr-vvr01-dg02 san_vc0_00018b auto 65536 3302948560 -rv db-oradev-dcdr-vvr01-dg_rvg 1 ENABLED ACTIVE secondary 2 db-oradev-dcdr-vvr01-dg_SRL
rl rl_hhoe01_db-oradev-vvr01-dg db-oradev-dcdr-vvr01-dg_rvg CONNECT ACTIVE 10.70.50.21 db-oradev-dcdr-vvr01-dg rl_oehh01_db-oradev-vvr01-dg
v db-oradev-dcdr-ora_ogg1-vol db-oradev-dcdr-vvr01-dg_rvg ENABLED ACTIVE 1048576000 SELECT - fsgen
pl db-oradev-dcdr-ora_ogg1-vol-01 db-oradev-dcdr-ora_ogg1-vol ENABLED ACTIVE 1048576000 CONCAT - RW
sd db-oradev-dcdr-vvr01-dg01-01 db-oradev-dcdr-ora_ogg1-vol-01 db-oradev-dcdr-vvr01-dg01 0 1048576000 0 san_vc0_00018a ENA
pl db-oradev-dcdr-ora_ogg1-vol-02 db-oradev-dcdr-ora_ogg1-vol ENABLED ACTIVE LOGONLY CONCAT - RW
sd db-oradev-dcdr-vvr01-dg01-03 db-oradev-dcdr-ora_ogg1-vol-02 db-oradev-dcdr-vvr01-dg01 1258291200 512 LOG san_vc0_00018a ENA
pl db-oradev-dcdr-ora_ogg1-vol-03 db-oradev-dcdr-ora_ogg1-vol ENABLED ACTIVE LOGONLY CONCAT - RW
sd db-oradev-dcdr-vvr01-dg02-02 db-oradev-dcdr-ora_ogg1-vol-03 db-oradev-dcdr-vvr01-dg02 1048576000 512 LOG san_vc0_00018b ENA
v db-oradev-dcdr-me01_shared-vol db-oradev-dcdr-vvr01-dg_rvg ENABLED ACTIVE 209715200 SELECT - fsgen
pl db-oradev-dcdr-me01_shared--01 db-oradev-dcdr-me01_shared-vol ENABLED ACTIVE 209715200 CONCAT - RW
sd db-oradev-dcdr-vvr01-dg01-02 db-oradev-dcdr-me01_shared--01 db-oradev-dcdr-vvr01-dg01 1048576000 209715200 0 san_vc0_00018a ENA
pl db-oradev-dcdr-me01_shared--02 db-oradev-dcdr-me01_shared-vol ENABLED ACTIVE LOGONLY CONCAT - RW
sd db-oradev-dcdr-vvr01-dg01-04 db-oradev-dcdr-me01_shared--02 db-oradev-dcdr-vvr01-dg01 1258291712 512 LOG san_vc0_00018a ENA
pl db-oradev-dcdr-me01_shared--03 db-oradev-dcdr-me01_shared-vol ENABLED ACTIVE LOGONLY CONCAT - RW
sd db-oradev-dcdr-vvr01-dg02-03 db-oradev-dcdr-me01_shared--03 db-oradev-dcdr-vvr01-dg02 1048576512 512 LOG san_vc0_00018b ENA
v db-oradev-dcdr-vvr01-dg_SRL db-oradev-dcdr-vvr01-dg_rvg ENABLED ACTIVE 1048576000 SELECT - SRL
pl db-oradev-dcdr-vvr01-dg_SRL-01 db-oradev-dcdr-vvr01-dg_SRL ENABLED ACTIVE 1048576000 CONCAT - RW
sd db-oradev-dcdr-vvr01-dg02-01 db-oradev-dcdr-vvr01-dg_SRL-01 db-oradev-dcdr-vvr01-dg02 0 1048576000 0 san_vc0_00018b ENAyou should be able to mirror DCM volumes
or
you can disassociate the existing DCM then create a new one (https://sort.veritas.com/public/documents/vis/7.1/windows/productguides/html/sf_admin/ch11s03s05s01.htm)
it is highly recommended to perform these tasks in a maintenance window meaning rlink is up-to-data and all the apps are idle (no active IOs).
- Hi,
Thank you for update. As provided link the mirroring was done through GUI. We dont have that. Could you please help me with command syntax to mirror volume db-oradev-dcdr-ora_ogg1-vol with dco log that will be great help.
you do not have to stop replication while migrating the data to a new storage.
recommend to use data mirroring instead of using vxevac (to play safe)/
please consult with the TN below in storage migration
https://www.veritas.com/support/en_US/article.100023745
