#SM-BC possible "SnapVault" ?

1 messages · Page 1 of 1 (latest)

kind flame
#

SM-BC is using SnapMirror in an Async/Sync version, but would it be possible to use the snapmirror labels on top of this, to allow the secondary volume to hold more snapshots than the primary?
This is to expand the functionality of a 3 cluster seutp where we normally would just to snapmirror(snapvault) from the primary to two secondary clusters (for redundancy).
If not possible on the destination volumes them self, would it be possible to just create new snapmirror relationships into another SVM on the secondary cluster, and take case to place the volumes on the same aggregates (so dedupe should work its magic) ?
Any suggestions is very welcome...
This setup will most likely end up with a C800 as primary and two C250 as backup clusters...

summer moat
#

I can't comment if this is possible but maybe someone else can. My only thought is if the C250s are DR don't complain if performance is worse.

#

If it's a backup only target...that might be ok.

kind flame
#

Why should the C250 be a problem as a sync-mirroring destination? We will have three clusters.. one with C800 and two with C250s. We would just like to have the same number of "snapvault" snapshots on the two C250s. While the C800 holds a lower number of snapshots...

sour pike
#

C250 is quite capable of being a DR target

#

of course it cannot run the same workload as the A800, so in a DR scenario you might not want to run all workloads on it. Then again, a slow application might be better than no application at all ...

kind flame
#

It's a C800 not the A800 ;-). And it will initially have 18 disks installed and so will the C250. So I would imagine the performance would be similar?

summer moat
#

CPU count is either half or quarter (48 vs 12 or 16???). A/C800 has way more CPUs as it's last model series high end and A/C250 is mid range.

kind flame
#

Yeah, but the C250 will also just be the failover cluster. Normally the C800 will carry the load, and only the writes will be hitting the C250.

#

What I was actually after, was the question if you would be able to have more snapshots (like snapvault) on the destination volumes on the C250? I have not been working with the SM-BC yet, only MetroClusters, to that is why I am asking...

summer moat