From: Scott Marlowe <smarlowe@g2switchworks.com>
To: Steinar H. Gunderson <sgunderson@bigfoot.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Hardware/OS recommendations for large databases (
Date: Wed, 16 Nov 2005 14:08:03 -0600
Message-ID: <1132171683.3582.85.camel@state.g2switchworks.com> (raw)
In-Reply-To: <20051116185138.GA22831@uio.no>
References: <3E37B936B592014B978C4415F90D662D01995F7B@MI8NYCMAIL06.Mi8.com>
<33c6269f0511152115v1a34ab81j30f1f5df5a6c6956@mail.gmail.com>
<437B3B18.1040509@commandprompt.com>
<437B4773.1040404@boreham.org>
<1132160785.3582.60.camel@state.g2switchworks.com>
<20051116185138.GA22831@uio.no>
On Wed, 2005-11-16 at 12:51, Steinar H. Gunderson wrote:
> On Wed, Nov 16, 2005 at 11:06:25AM -0600, Scott Marlowe wrote:
> > There was a big commercial EMC style array in the hosting center at the
> > same place that had something like a 16 wide by 16 tall array of IDE
> > drives for storing pdf / tiff stuff on it, and we had at least one
> > failure a month in it. Of course, that's 256 drives, so you're gonna
> > have failures, and it was configured with a spare on every other row or
> > some such. We just had a big box of hard drives and it was smart enough
> > to rebuild automagically when you put a new one in, so the maintenance
> > wasn't really that bad. The performance was quite impressive too.
>
> If you have a cool SAN, it alerts you and removes all data off a disk
> _before_ it starts giving hard failures :-)
Yeah, I forget who made the unit we used, but it was pretty much fully
automated. IT was something like a large RAID 5+0 (0+5???) and would
send an alert when a drive died or started getting errors, and the bad
drive's caddy would be flashing read instead of steady green.
I just remember thinking that I'd never used a drive array that was
taller than I was before that.
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: smarlowe@g2switchworks.com, sgunderson@bigfoot.com
Subject: Re: Hardware/OS recommendations for large databases (
In-Reply-To: <1132171683.3582.85.camel@state.g2switchworks.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox