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July 28th, 2008 15:00

Does EMC DMX-3 support mixed raidness?

Hi, have a quick question. Does EMC DMX-3 support mixed raidness? for example, can I have half config as RAID10 and half config as RAID5? assuming I am already in the latest enginuity level.
Thanks and looking forward to your answers.

6 Operator

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2.8K Posts

August 4th, 2008 07:00

As per primus emc158903 (that unfortunatly is available only to EMC support) DMX3 backend does not generally support RAID6. You need specific processors in the backend (so called HANS pipe machine) ... Your CE/RTS may check if your DMX3 do support RAID6 ..

However as you noted RAID6 is available since 5772 .. (as I said, I'm the king of confusion) :-)

6 Operator

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2.8K Posts

August 4th, 2008 09:00

Open the door, look carefully .. Whooosp I can't share trade secrets with you !!! ;-)

Dynamox I think you have to ask your local friendly CE or RTS to dial the box and tell you the truth ;-)

-s-

6 Operator

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2.8K Posts

August 4th, 2008 09:00

ThX Chris for clearing that point .. :D

It wasn't clear to me how much "trade secrets" I can share with customers regarding this specific issue since all primuses are restricted (and customers can't access them).

You shaded a lot of light on this ;-)

11 Legend

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20.4K Posts

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August 4th, 2008 09:00

Chris,

i have a DMX3 ...how can i identify if my box is capable of supporing RAID6 ?

1 Rookie

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52 Posts

August 4th, 2008 09:00

Stefano,
DMX-3s released since around Q3-Q4 2006 have had the hardware capability to support RAID6. Due to the nature of running RAID6, specific ASICs are needed to assist the DA in all the extra calculations. Those ASICs were already existent. Early DMX-3s had 1st generation boards which do not have that capability, but 2nd generation boards, and 3rd generation boards (boards installed on DMX-4) do have the required ASICs to support RAID6. So depending on the hardware installed
Coincidentally, all DMX-4s are RAID6 capable at install because they are installed with Enginuity 5772 and have the 3rd generation DAs.

Regards,

PSE Chris

1 Rookie

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52 Posts

August 4th, 2008 10:00

Dynamox,
Please send me an e-mail to papp_christopher@emc.com with the SNs of your DMX-3s, and I can get that answer for you.
Typically to get that answer, we look at the Part Number on the front director board. If they end into a certain sequence, they will have the correct H/W to support RAID6.
I'm being fairly generous right now so I'll look at them for you real quick and tell you. :)

Chris

11 Legend

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August 4th, 2008 11:00

It wasn't clear to me how much "trade secrets" I can
share with customers regarding this specific issue


that's funny ..how's that a trade secret ..the darn thing either supports it or it does not. :)

6 Operator

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2.8K Posts

August 4th, 2008 12:00

Don't ask .. big brother is hearing .. :-)

6 Operator

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5.7K Posts

August 12th, 2008 14:00

Am I one of the most active


The others are simply on vacation....
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