IOP calculation ( disk and node type )

Question

for 'classical storage', potential IOP limits tend to be something like

Drive type Maximum recommended IOPS per drive
SAS Flash (all types) 20,000
SAS 15K 350
SAS 10K 250
NL-SAS 150

with RAID type co-efficient.

For Isilon the above does not apply as node type needs to be taken into account.

So how do I calculate the max IOP capability of an isilon array.

Presumably its also complicated by directories being pinned to different tiers, ie if I have multiple F* nodes and H* nodes and pinned directory x to H* nodes, then theoretical IOP capability of F* nodes is irrelevant other than saying directories pinned to F* nodes do not consume H* nodes theoretical IOPs ?

DELL-Josh Cr · Accepted Answer

Hi,

Thanks for your question about IOP calculations. I think your calculation should give a good idea of what the max IOPS are. Is this an existing configuration or one being designed still? Are you having performance issues? This might help if you are https://dell.to/37kossM

Let us know if you have any additional questions.

Isilon

IOP calculation ( disk and node type )

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