We have two clusters that are both running 9.7P5. On Cluster A, we have a volume that has a CIFS share associated with it. We then have a Snapmirror Sync relationship with Cluster B. For some reason, when a user updates a file in the original volume, the changes aren't replicated to Cluster B until 5 minutes after the hour (or a manual update). Our understanding is that a write to the source volume would be written immediately to the source and destination?
Below is the information for the relationship in case it helps:
Oriole::> snapmirror show -destination-path oriole-svm:sm_s_prj004_NTFS
That is unfortunate, as our understanding was that we would be able to instantly see the file in location A and B immediately after a change was made. We have an application that needs to be able to read from the secondary copy, but it sounds like we can't make the sync happen more often than 30 minutes.
The technology was designed for as close to possible RTO, not DR type file mirroring. You may want to look at Flexcache for your solution needs. It seems like the network is close so that should offer good performance.
We also have a cloud based product GFC that can be used in physical environments (from Talon). Perhaps this may meet your needs?
If you're unsure, a discussion with the account team is definitely a possibility to ensure you are getting the products that meet your needs.