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Does hp raid controller really use ram cache for ssds?

 
mgiammarco
Occasional Contributor

‎12-21-2019 12:17 PM

‎12-21-2019 12:17 PM

Does hp raid controller really use ram cache for ssds?

Hello,
in a 440ar controller I have built a raid1 with sas disks and several raido0 with ssd disks.

I then disabled ssd smartcache and added controller cache.

SAS disk performance improved greatly using controller cache.

SSD improved nothing. I suspect the controller does not use its ram cache when the disk is ssd.

Or is it possible that with raid0 no ram cache is used?

Thanks,

Mario

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DANDKS
HPE Pro

‎01-06-2020 09:44 PM

‎01-06-2020 09:44 PM

Re: Does hp raid controller really use ram cache for ssds?

Greetings.

RAID 0 does not require cahce for performance. SSD itself is a flash technology which is better than SAS drives.

Thank you


I am an HPE employee
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