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Sep 16

101 uses for a Clariion…

You know, it floored me recently when i heard that someone had said that a CX3-20 couldn’t be used as a dumparea for Tivoli.

What floored me even more is when they said this would not perform as well as a Symmetrix 8430.

8430.

Symm4.

Almost 10 year old hardware.

Huh?

Back when I was working for the student loan company in Sterling, we ran all of our backups to a single CX500 with 15 Terabytes behind it. Worked without any issue and was screaming fast, to the point that 18 hours (to tape) of backups was compressed into 8 hours (to disk.)

{sarcasm}Now correct me if I’m wrong, the CX3-20 is a tad faster than the older CX500, right?{/sarcasm}

As with any array, the bulk of the issue arises from whether or not the disks are laid out appropriately. If you try to run single-disk LUNs you’re probably going to die of old-age before a backup finishes. But if you stripe it appropriately and make sure the LUN ownership is correct, you can do wonders with EMC’s “Tier-2” array.

6 comments

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  1. I love those kinds of comments… “Storage 101” should be a required course for everyone in IT, at least any one who deals with infrastructure.

  2. Jesse

    I know – it’s one of those moments when you wish you had a hammer handy.

  3. @Andrew Storrs

    Any particular, freely available resources you’d recommend covering as part of “Storage 101” ?

  4. Jesse

    Syngress Publishing had a book out called “Building Storage Networks” that was the SAN bible for the longest time. There is a second-edition out recently that proves to be just as helpful and informative as as the first. And is also helpful if you find yourself in a hotel-room without your usual dose of Ambien.

    If not, believe it or not there is actually a “Storage Area Networks For Dummies” book out as well. 😉

  5. “If not, believe it or not there is actually a “Storage Area Networks For Dummies” book out as well. ”

    And honestly its a pretty darn good primer for people. No coverage of anything newer that FC 2gbps though (no iSCSI, etc). But for FC basics, anyone should be able to grasp it after reading it – if not… maybe “Storage Area Networks for Absolute F*cking Morons” is around the corner. 😉

  6. Jesse

    Truthfully the basics of fibrechannel will prepare you well for just about everything, except maybe iSCSI, if only for the lack of anything resembling zoning. (One of the things I don’t like about iSCSI, you depend greatly on the initator/target to filter out all of the non-essential traffic.

    With FC/Zoning – you just know that unless you didn’t implement zoning (bad idea) that your initiator is only going to see your target.

    I guess you could use VSAN’s to segregate out traffic if you wanted to.

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