E-Series, SANtricity and Related Plug-ins Discussions

EF570 performance degarde when ssd fail

Hi expert We found EF570 performance reduce 50% when one ssd fail. Is it normal? Our enviorment is 120 ssd, ssd size 3.2T, DDP pool, each pool 60 disk, io size 32k, read/write percent 7:3.
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Re: EF570 performance degarde when ssd fail

Hi expert Could you help answer the question?
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Re: EF570 performance degarde when ssd fail

Hi @stevenzhang 

 

you can reference this figure for performance degrade.

 

And you can try to modify the reconstruction priority to reduce the performance degrade during DDP rebuild.

 

https://www.netapp.com/us/media/tr-4652.pdf

ddp.png

DDP2.png

 

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