UNSOLVED
how expand vplex distribute virtual volume
we have VPLEX Metro setup with VMAX 20 behind, we created distribute virtual volume for windows servers, now I need expand one of the drive from 10G to 50G. I found out 2 ways to do this:
1. Expand the backend devices capacility on VMAX, then expand it on VPLEX at both side
2. Create new device with 50G and use data mobility migrate over.
For options 1:
my backend device on VMAX is thin TDEV (i created from unisphere create virtual volume), not meta devices. I checked VMAX document set, it told only meta device can be expanded, either stripped or concanated. So I need convert the thin TDEV to meta concanated volume then expand it, it seems this is a very long procedure and I am new to EMC storage system, not familiy with Symcli.
For options 2
To use data mobility, it must be local volume, but mine is distribute, I need break down the mirror and do the mgiraton, once migrated over and attach mirror. this looks a bit simple, but i can do this online while the drive is presented to server? where i can find details step?
or is there any other eaiser way I can achieve this.
Much appreciate any suggest.
Hiho,
this thread is a bit older, but Geo 5.2 onwards supports this nondisruptively, so no need to break the mirror before expanding locally and reattaching stuff or building a new one and migrating. just expanded a 2TB distributed volume to 3TB. takes a while to complete though.
see https://logicalblock.wordpress.com/2014/01/28/how-to-expanding-vplex-virtual-volumes/
cheers
Wolfi72, the issue stated above calls for a mobility job because the VMAX device can not be extended due to it not being a meta device. So this will have to be an instance where the distributed virtual volume will need to be broken to allow the device contents to be moved to a new larger device. Once moved it can be expanded then presented to a new larger remote device re-creating the distributed virtual volume.
GBson
4 Posts
1387
1
Posted October 6th, 2014 03:00
Hi LettitGo
Option 2 seems the best way to go to me. And yes, it can be done online.
long list the Distrbuted device you want to expand
VPlexcli:/distributed-storage/distributed-devices/dist_dev_1> ll distributed-devices-components
Detach Mirror_leg2
in the distribute device context
device detach-mirror -s 0 -i -f -d dev_leg2
check the status:
VPlexcli:/distributed-storage/distributed-devices/dist_dev_1> ll distributed-devices-components
now you can do the mobility job to extend the local device.
Reattach the remote mirror.
This an online process. Detaching the mirror is transparent to the application.