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Re: Just some odd questions out of the blue...

To: "l.a walsh" <xfs@xxxxxxxxx>
Subject: Re: Just some odd questions out of the blue...
From: Christian Guggenberger <Christian.Guggenberger@xxxxxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 8 Mar 2003 15:53:41 +0100
Cc: "'Eric Sandeen'" <sandeen@xxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <000001c2e4f2$14753780$1403a8c0@xxxxxxxxxxxx>; from xfs@xxxxxxxxx on Fri, Mar 07, 2003 at 22:39:49 +0100
References: <Pine.LNX.4.44.0303061954261.16532-100000@xxxxxxxxxxxxxxxxxxxxxx> <000001c2e4f2$14753780$1403a8c0@xxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
On 07.03.2003   22:39 l.a walsh wrote:

> -----Original Message-----
> From: linux-xfs-bounce@xxxxxxxxxxx
> [mailto:linux-xfs-bounce@xxxxxxxxxxx] On Behalf Of Eric Sandeen
> Sent: Thu, Mar 06, 2003 6:00p
> To: l.a walsh
> Cc: linux-xfs@xxxxxxxxxxx
> Subject: Re: Just some odd questions out of the blue...
>
>
> On Thu, 6 Mar 2003, l.a walsh wrote:
>
> > So lets say you had 2 disks...would it make sense to put the log
> > of disk1 on disk2 and the log of disk2 on disk1?  This would be
>
> Yes, external logs are available for this reason.
>
> Your cross-log scenario would probably only help if you were
> really only
> writing to 1 fs at a time.
---
        Yes...but say you have 1 disk setup with system and home
dir where home dir is mainly docs and email, and second disk is
setup mainly to do builds on....

> > Second question ... suppose one disk was faster than the other --
> > or one was a sda and the other hda.  How much metadata is written
> > compared to file data, i.e. is there some average ratio or range?
>
> You can look at the stats with the xfs_stats.pl script in cvs.
> It really depends on the nature of your workload.
----
        CVS again...everything is CVS...seems like every piece of
software I'm interested in I've got to pull down the whole bloomin
CVS tree...grumble.  I don't suppose such scripts could be put into
xfsprogs or xfsprogs-devel?  (not right this second...but just in
general)...


You probably want to browse the cvs web-tree, and download the script you are looking for....
There's no need for a full cvs-checkout, I think.

http://oss.sgi.com/cgi-bin/cvsweb.cgi/linux-2.4-xfs/cmd/xfsmisc/

Christian


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