Restore with replication of vSphere

Hello

We use SRM 5.1 with replication of vSphere.

I'm trying to get a rough idea of how long a reprotect operation would take after a failover, especially synchronization of storage.

The manual says that:


"The full synchronization that appears especially in the stages of recovery performs control totals, and only a small amount of data is transferred over the network."

However in my testing this step still seems to take a long time to complete.  For a person of 50 GB, it takes 40 minutes.  My question is: what is the bottleneck here and I can speed things up?

In a live scenario, I have much larger comments VMs and I fear that a reprotect could take days to synchronize the storage.

Thank you

Steve

The full synchronization bed basically just for the disk data and checksum data. It also makes requests to read the data and return a set of checksums remotely. He would only send the data if the checksums do not match. Thus, assuming that not many disk changed, there is very little except checksum travel over the network. So you will respect especially how fast you can read files vmdk on both sites and to a lesser extent by the latency of the network between the sites, and, of course, if the link between the sites remains upward.

Check if the link to the sites is good. Get often ignored or not connections are limited somehow? The latency is extremely high, as hundreds of milliseconds? This can slow things down.

On the source site, make sure that the storage is not overloaded with other work. In the case of NAS/ISCSI, check also that there is no other work of network hogging bandwidth. Sometimes, there are periodic offers on secondary sites, like backups, and that people often forget this can be a lot of resources.

On the destination site, carry out similar checks and make sure that the server VR is to get a reasonable amount of network and CPU resources.

Tags: VMware

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