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bare-metal restore (p2v) performance tuning
I'd like to use BMR (p2v), and am wondering what the performance limitations are. I've read several helpful guides/rules-of-thumb on reasonable performance for client-to-grid, and grid-to-grid (per node), but have seen very little about BMR performance, what impacts it, and how to maximize it.
My first thought is that target (recovery host) disk I/O would very quickly become the limitation; but that restore data transfer rates would be much higher than backup operations, even with 5+ grid nodes. If that's accurate, that would raise a second question of what kind of restore performance is possible with high-speed storage (e.g. pv2 into a VBlock environment).
Bradley
jdespres
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February 10th, 2015 11:00
Make sure plenty of memory is assigned!
jdespres
176 Posts
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February 11th, 2015 07:00
I have seen what happens when you have low ram.... Slow BMR restores... I have no formula for how much ram. If you can add more ram temporarily it won't hurt!
Thanks!
Joe Despres
BradleyUC
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February 11th, 2015 07:00
Thanks, jdesperes. Do you temporarily bump-up RAM on VMs during BMR, and if so, how much RAM do you find is effective?