On 08/20/2015 03:07 AM, Christian Balzer wrote:
For a realistic comparison with your current setup, a total rebuild would
be in order. Provided your cluster is testing only at this point.
Given your current HW, that means the same 2-3 HDDs per storage node and 1
SSD as journal.
What exact maker/model are your SSDs?
Again, more HDDs means more (sustainable) IOPS, so unless your space
requirements (data and physical) are very demanding, double the amount of
3TB HDDs would be noticeably better.
Christian
The cluster is a test setup, eventually we will have lots more hdds
(probably we will fill both chassises with drives - 44 drives each),
just starting with this number for testing purposes.
For the ssd's we use Intel DC S3710 (we ran into dsync problems with
intel 530 series drives before, so we switched to recommended ones).
By "total rebuild" do You mean reinitializing the whole cluster
(monitors/osds) and starting from scratch?
J
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Jacek Jarosiewicz
Administrator Systemów Informatycznych
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