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Re: 12 disks raid setup
- From: "Jignesh K. Shah" <J(dot)K(dot)Shah(at)sun(dot)com>
- To: Franck Routier <franck(dot)routier(at)axege(dot)com>
- Cc: pgsql-performance(at)postgresql(dot)org
- Subject: Re: 12 disks raid setup
- Date: Fri, 29 Feb 2008 12:17:29 -0500
- Message-id: <47C83E29.8060701@sun.com> <text/plain>
Franck Routier wrote:
Hi, I am in the process of setting up a postgresql server with 12 SAS disks. I am considering two options: 1) set up a 12 disks raid 10 array to get maximum raw performance from the system and put everything on it (it the whole pg cluster, including WAL, and every tablespcace) 2) set up 3 raid 10 arrays of 4 disks, and dispatch my data on these disks via tablespaces : data1 = pg cluster + references data (dimensions) tablespace data2 = fact data tablespace data3 = indices tablespace
Option 2: Infact I would also say within one of the RAID1 use another softpartition and separate out pg_xlog also.
My 2 cents based on my benchmarks. -Jignesh
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