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We have a Dell EqualLogic PS6510 RAID Array. I have full access to the web-based "PS Group Manager" app, as well as the "SAN Headquarters" app. I have hunted high and low, and searched Google for the answer, but I cannot for the life of me determine the stripe size of the RAID-50 array we have configured.

Does anyone with experience on an EqualLogic PS6510 know how to find the stripe size?


Additional Info:

Page 19 of http://i.dell.com/sites/doccontent/business/solutions/engineering-docs/en/Documents/dvs-enterprise-reference-arch-citrix-blades-shared.pdf talks about the default stripe size being 64K.

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Why are you using RAID 50? –  Chopper3 Sep 4 '12 at 13:52
    
Because it provides the RAID characteristics we identified as important at install. –  Max Vernon Sep 4 '12 at 13:58
    
So you're not fond of your data integrity and any other option was too fast? I'm not being nasty but who uses R50 over R10? –  Chopper3 Sep 4 '12 at 14:01
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Thanks for that constructive help. It's unfortunately a bit late to change to RAID 10 now, without reformatting the entire SAN. Besides that, RAID 50 provides higher data capacity than RAID 10. –  Max Vernon Sep 4 '12 at 14:09
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Raid 50 is supported by the company that engineered, sold, and supports this box. That's all that matters. –  Basil Sep 4 '12 at 14:10
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1 Answer

I found an oracle tuning guide (google docs link) that seemed to imply 1MB stripes, but I also found a blog post claiming that replication is done on 512k blocks.

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That's been my experience too; no definitive answers! –  Max Vernon Sep 4 '12 at 14:42
    
If you talk to whoever sold this to you, you can probably get them to show you some sort of low level control panel, or maybe they'll just know. I suspect it'll be a fixed stripe size, though, based on architecture for similar boxes I know a bit better. In any case, escalate this at dell :) You pay a premium for support, and this counts! –  Basil Sep 4 '12 at 15:18
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