Optimal RAID 5/6 Stripe Size for S3700 Series

[idata]

Hi,

I'm looking information for optimal RAID 5/6 stripe size for n units of S3700 Series SSDs. The first scenario is for database server and the second scenario is for web/file server, the third scenario is mixed of previous scenarios. The target is to have best RAID IOPS on writing and of course reading regardless to controller cache and RAM cache.

As long as I find on website, stripe size of SSD RAID is related to erase block size. Is it true? How can I find that value of S3700 Series?

Best regards,

[Jose_H_Intel1 · Accepted solution]

Thank you very much for posting.

The strip size depends mostly on different factors like the size of the files you are storing rather than on the drive itself. Therefore we do not have an exact recommended value.

We suggest you to take a look to the following article so you may try with the strip size value(s) that suit better for your application and then test for the best performance. The article deals mostly with mechanical drives but still applies to SSDs in regards to the filesize and I/O requests.

http://www.tomshardware.com/reviews/RAID-SCALING-CHARTS,1735-4.html http://www.tomshardware.com/reviews/RAID-SCALING-CHARTS,1735-4.html