Re: Advice on RAID card

From: PFC <lists(at)boutiquenumerique(dot)com>
To: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, "Dave Cramer" <pg(at)fastcrypt(dot)com>
Cc: "Michael Ben-Nes" <miki(at)canaan(dot)co(dot)il>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Advice on RAID card
Date: 2005-09-25 16:08:27
Message-ID: op.sxn1sdofth1vuj@localhost
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

> The common explanation is that CPUs are so fast now that it doesn't make
> a difference.
> From my experience software raid works very, very well. However I have
> never put
> software raid on anything that is very heavily loaded.

Even for RAID5 ? it uses a bit more CPU for the parity calculations.
An advantage of software raid, is that if the RAID card dies, you have to
buy the same one ; whether I think that you can transfer a bunch of
software RAID5 disks to another machine if the machine they're in dies...

In response to

Responses

Browse pgsql-performance by date

  From Date Subject
Next Message Joshua D. Drake 2005-09-25 16:22:02 Re: Advice on RAID card
Previous Message Michael Stone 2005-09-25 15:59:09 Re: Advice on RAID card