Date: Fri, 27 Apr 2001 13:09:37 -0600 From: Chris Fedde <chris@fedde.littleton.co.us> To: Vivek Khera <khera@kcilink.com> Cc: questions@FreeBSD.ORG Subject: Re: solid state disk: file system optimization Message-ID: <200104271909.f3RJ9bE41847@fedde.littleton.co.us> In-Reply-To: <15081.41279.355369.173695@onceler.kciLink.com>
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On Fri, 27 Apr 2001 12:41:35 -0400 Vivek Khera wrote:
+------------------
| I've got a solid state disk that appears to the system as a simple
| SCSI disk device. I'm using it for a mail spool under Postfix.
|
| I was wondering if anyone has experience with these on FreeBSD. In
| particular, is there any tuning I can do with FreeBSD to optimize the
| system even further.
|
| Is there a way (and should I even bother) to tell FreeBSD that it
| doesn't need to cache access to this disk since the disk is already
| "fast enough"?
|
| What would be good newfs parameters for such a beast? There are
| obviously no rotational delays, and the seek time is effectively zero
| to access any sector on the "disk".
+------------------
Obviously you want to enable soft updates for this device. But
you probably do that anyway. For the most part the newfs arguments
don't help much with modern buffered disk devices.
If you were running sendmail and have a space issue on the SSD,
I'd recomend putting the qf files on this device and the df files
on regular old disk. But I don't know how that relates to Postfix
chris
--
Chris Fedde
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