Correct, network will be the bottleneck.My thought is that the network (1 Gbps) will be the bottleneck for the VEB backups, so there is no benefit in using 6 Gbps drives. Is my reasoning correct with respect to the VEB backups (with a 1 Gbps network, 6 Gbps drives won't be any faster than 3 Gbps drives)?
There is an existing thread on that topic, please take a look and, if any questions persist, feel free to ask.Should I use RAID 10 instead of RAID 6 to compensate somewhat for the slower drives
I would not recommend that. At least make sure that your backups go to other arrays than your VMs may be running on. Otherwise the performance of backups will woefull, especially during transforms. If you're planning to access the virtual drive via the same 1Gbit then it'd better to have a dedicated server for backups., since the datastore may be running 3 or 4 VMs?
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