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July 8th, 2011 13:00
RecoverPoint support for VAAI hardware-assisted copy?
I asked Chad Sakac during his recent webcast titled, "3 Pieces of Bad News and a Deep Dive into APD," whether support for hardware-assisted copy feature of VAAI was on the roadmap for RecoverPoint. He suggested I post the question here.
Ideally this would be implemented in such a way that performing a svmotion from one replicated LUN to another would not result in re-replicating the VM. Instead RecoverPoint would recognize the svmotion event on the source, and then just move the corresponding blocks on the destination.
For what it is worth, we are running 3.4 of RecoverPoint with a CX4-240, using the integrated splitter.
Thanks!
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Gary_Archer
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July 8th, 2011 13:00
Right now the splitter 'rejects' the command so that you can enable this at the ESX layer and use it for all the other LUNs of your CX4 that are not being replicated. We're working very closely with the engineering team to implement the other VAAI commands. Right now the splitter implements the CAS/ATS command and rejects the other VAAI commands. The objective is to implement the commands so that a VAAI command can be sent to a remote site and then executed there-- for example you don't want RP to replicate a whole bunch of zeros that were created locally, you'd want RP to replicate the zero fill command instead of the replicating the thousands of zeros.
Stay tuned for more details.
Gary
RafaelNovo
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July 8th, 2011 13:00
RP with CX splitter already supports VAAI.
But RP is not VAAI aware, so it will replicate all the data.