2009-03-15 07:38 PM
Are their any tools availabe for sizing bandwidth requirement for Snapvault replication, is FCP link better over IP links if distances are <10km between primary and secondary filers.
I am also trying to find any useful guides, if available, on processor / memory utilization overheads as a result of using snapvault/snapmirror.
2009-03-16 02:01 PM
I think both of these have parameters to limit their bandwidth consumption.
"Snapmirror update" command's "-k" option allows you to throttle the transfer rate at KB/s.
For SnapVault, you have "snapvault start -k" flag and "snapvault update -k" flag to set your throttling speed~
2009-03-17 07:04 PM
Yes as Ming said always you can control the transfer limit from Kb,You can find the Adjusting the TCP window size help page from the below link.
2009-04-08 11:10 AM
Also, SnapVault doesn't support replication over FC, it's IP replication only.
In addition to the solutions mentioned above, you can set the SnapVault throttle for permanently using the "snapvault modify -k" option. This would need to be done for each SnapVault relationship, and is static (if a transfer is in progress, the new throttle won't be implemented until the next update). If you are using SnapMirror, there is a "snapmirror throttle" command that is a dynamic throttle.
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