Re: RAID Controller (HP P400) beat by SW-RAID?

From: Arjen van der Meijden <acmmailing(at)tweakers(dot)net>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: RAID Controller (HP P400) beat by SW-RAID?
Date: 2011-09-13 06:22:03
Message-ID: 4E6EF68B.8020702@tweakers.net
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On 12-9-2011 0:44 Anthony Presley wrote:
> A few weeks back, we purchased two refurb'd HP DL360's G5's, and were
> hoping to set them up with PG 9.0.2, running replicated. These machines
> have (2) 5410 Xeon's, 36GB of RAM, (6) 10k SAS drives, and are using the
> HP SA P400i with 512MB of BBWC. PG is running on an ext4 (noatime)
> partition, and they drives configured as RAID 1+0 (seems with this
> controller, I cannot do JBOD).

If you really want a JBOD-setup, you can try a RAID0 for each available
disk, i.e. in your case 6 separate RAID0's. That's how we configured our
Dell H700 - which doesn't offer JBOD as well - for ZFS.

Best regards,

Arjen

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