Having been the person responsible ( on the database side ) for those
particular Sharks that Pete is referring to, I can say that I would
certainly
consider something else.
There are a number of built in limitations:
- cannot create a volume as large as a LUN
- cannot enforce varying stripe sizes
- different LUNS have different drive parameters
- RAID 5 ONLY!!!!!
- the *only* way to achieve the claimed throughput
is with a 100% cache hit rate on the Shark Cache.
Jared
Peter Barnett <regdba_at_yahoo.com>
Sent by: root_at_fatcity.com
06/19/2002 07:38 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
cc:
Subject: Re: IBM AIX & Shark storage?
I don't have any specifics but we were replacing all
of our older storage with Sharks. The plan was
developed a couple of years ago. As we get more
experience with Sharks we are starting to look once
again at EMC. Like I mentioned, no details but the
storage folks have convinced a True Blue management to
look at other options.
- Jack van Zanen <nlzanen1_at_EY.NL> wrote:
>
> Hi
>
>
> We are not using them for our Oracle storage but
> other apps.
>
> But according to the UNIX boys they are much faster
> than the EMC symmetrix
> that we have here for our oracle storage. Setup may
> be different from a
> point of recoverability, availability so it's a
> little like comparing
> apples to pears. They are fast though.
>
>
>
> Jack
>
>
>
>
>
> "James Howerton"
>
>
> <jhowerton_at_uabmc. To:
> Multiple recipients of list ORACLE-L
> <ORACLE-L_at_fatcity.com>
> edu> cc:
> (bcc: Jack van Zanen/nlzanen1/External/MEY/NL)
>
> Sent by:
> Subject: IBM AIX & Shark storage?
>
> root_at_fatcity.com
>
>
>
>
>
>
>
>
> 18-06-2002 18:21
>
>
> Please respond to
>
>
> ORACLE-L
>
>
>
>
>
>
>
>
>
>
>
> DBA's
>
> Anyone using IBM's Shark storage solution? What is
> you're opinion?
>
> I understand it uses raid 5 :-( with a big cache in
> front. I've talked
> to a couple of DBA's that are using them and they
> think they are great
> and haven't experienced any problems with poor
> performance (including
> write speed).
>
> We've had a bad experience with Hitachi raid 5,
> salesman said it was
> great so the boss bought it.
>
> Thanks
> ...JIM...
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.com
> --
> Author: James Howerton
> INET: jhowerton_at_uabmc.edu
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> --
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> Author: Jack van Zanen
> INET: nlzanen1_at_EY.NL
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Pete Barnett
Lead Database Administrator
The Regence Group
pnbarne_at_regence.com
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INET: regdba_at_yahoo.com
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Received on Thu Jun 20 2002 - 18:44:15 CDT
