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I am running Veeam on a VM hosted on the same infrastructure (host and storage). When I copy files from the NAS holding the backups to the VM I get 130MB/s. Running the same jobs on a slower server, switch (1G vs 10G) and storage (spindle vs flash) last year I'd get 70-90MB/s restore rates. I am now getting between 10-20MB/s.
I have tried restarting all hardware and still see the same rates. Is there anyway I can try to determine where the bottleneck is?
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- Full Name: Oleg Feoktistov
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The VM Datastore or the method that you use for restore (NBD network mode for example) could be the bottleneck.
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- Full Name: Petr Makarov
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We should not compare manual copy speed and Veeam restore processing rate because restore is more complicated process which includes such operations as: reading blocks from backup file in a specific order, decompression, checksum calculation, transferring block over a network link, writing to a target datastore.
If there was no possibility to see bottleneck statistics for restore session, I'd suggest to check the following:
1. Correct gateway server is selected in the repository settings (as far as I understand, Veeam server itself in your case). In case of automatic selection, source Data Mover could be started on a remote server and could read data over a slow connection.
2. Try to select a "thick eager zeroed" disk type. In some cases, write speed in higher when using this disk type because there are no extra API round-trips between proxy and vCenter.
Yes, makes sense to check as well.Regnor wrote:Do you have see the same Performance stats when restoring from a full Backup?
By the way, keep in mind that instant recovery is always a good option if you want to restore a vm as fast as possible.
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