fdmts

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07:21 pm: This sucks


Yeah, that's the metadata partition on an 80TB San. A second drive failed while the RAID was rebuilding from the first failure.

"Data was lost."

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[User Picture]
From:[info]sejabop
Date:August 6th, 2008 11:46 pm (UTC)
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:C
[User Picture]
From:[info]amnesiadust
Date:August 7th, 2008 01:25 pm (UTC)

what would the Onion say?

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Ah come on, they've got 80 TB of data, they've got plenty of data without that one measly partition. I mean, they have so much data they don't know what they're going to do with it. They should give some to the starving kids in Iran. And "metadata"? Come on, that's not even data, it's too meta to be real data. I know what real data looks like and it looks like pixels, not this ridiculous stop-light crap.
[User Picture]
From:[info]fdmts
Date:August 7th, 2008 01:31 pm (UTC)

Re: what would the Onion say?

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Don't drink WATER, because WATER comes out of the TOILET!
[User Picture]
From:[info]amnesiadust
Date:August 7th, 2008 05:30 pm (UTC)

CAN it

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When GOD gives you LEMONS, you FIND A NEW GOD.
[User Picture]
From:[info]evil_genius
Date:August 7th, 2008 09:09 pm (UTC)
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THAT SUCKS!!!
This is the scenario I always read about with RAID 5.
Back up tapes??
[User Picture]
From:[info]fdmts
Date:August 7th, 2008 09:40 pm (UTC)

Tapes

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Back up tapes??

Yup. LTO-2's. Three levels of them ("full" and then weekly and daily incrementals.)

The math on how many robotic tape swaps are going to be required is left as an exercise for the reader.

The only reasonable way to back up a large SAN is with another SAN.
[User Picture]
From:[info]evil_genius
Date:August 8th, 2008 11:27 am (UTC)

Re: Tapes

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RAID 6 is the only way to go on stuff like this.
[User Picture]
From:[info]fdmts
Date:August 8th, 2008 01:06 pm (UTC)

Re: Tapes

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RAID 6 is the only way to go on stuff like this.

Fuck that. In terms of this particular incident, 2 = 3. I'm going RAID 1 for metadata from now on.
From:(Anonymous)
Date:August 11th, 2008 09:29 pm (UTC)

RAID and Green computing...

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In the same breath, a customer asked for a RAID 10 system for Green Computing. I had to turn away for fear of spit-taking my drink. TK
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