Does anyone have any advice regarding checksums for array LUNs? My understanding is that AZCS saves you about 12% capacity but requires more filer CPU utilization for reads. What kind of impact does it have?
FWIW, I'm choosing AZCS for a 2.5PB FlexArray cold storage solution because in my case capacity trumps performance needs and my controller is a FAS8080.
I know that's not a data point you're looking for, so when I get an idle day or so I'll try an A/B test with BCS/AZCS.
On Aug 21, 2015, at 7:54 PM, Basil <basilberntsen@gmail.commailto:basilberntsen@gmail.com> wrote:
Does anyone have any advice regarding checksums for array LUNs? My understanding is that AZCS saves you about 12% capacity but requires more filer CPU utilization for reads. What kind of impact does it have? _______________________________________________ Toasters mailing list Toasters@teaparty.netmailto:Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters
My workload is a lot more warm, but still tons of untouched parts of the filesystems. That said, it's a fair bit of IO.
On Sat, Aug 22, 2015 at 11:09 AM, Francis Kim fkim@berkcom.com wrote:
FWIW, I'm choosing AZCS for a 2.5PB FlexArray cold storage solution because in my case capacity trumps performance needs and my controller is a FAS8080.
I know that's not a data point you're looking for, so when I get an idle day or so I'll try an A/B test with BCS/AZCS.
On Aug 21, 2015, at 7:54 PM, Basil basilberntsen@gmail.com wrote:
Does anyone have any advice regarding checksums for array LUNs? My understanding is that AZCS saves you about 12% capacity but requires more filer CPU utilization for reads. What kind of impact does it have?
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