Re: BBU still needed with SSD?

From: Andy <angelflow(at)yahoo(dot)com>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Craig Ringer <craig(at)postnewspapers(dot)com(dot)au>, David Rees <drees76(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: BBU still needed with SSD?
Date: 2011-07-19 03:56:38
Message-ID: 1311047798.93674.YahooMailClassic@web111301.mail.gq1.yahoo.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance


> > I'm not comparing SSD in SW RAID with rotating disks
> in HW RAID with
> > BBU though. I'm just comparing SSDs with or without
> BBU. I'm going to
> > get a couple of Intel 320s, just want to know if BBU
> makes sense for
> > them.
>
> Yes, it certainly does, even if you have a RAID BBU.

"even if you have a RAID BBU"? Can you elaborate?

I'm talking about after I get 2 Intel 320s, should I spend the extra money on a RAID BBU? Adding RAID BBU in this case wouldn't improve reliability, but does it improve performance? If so, how much improvement can it bring?

In response to

Responses

Browse pgsql-performance by date

  From Date Subject
Next Message Samuel Gendler 2011-07-19 05:05:51 Re: cpu comparison
Previous Message M. D. 2011-07-19 03:25:25 Re: cpu comparison