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Re: LBA to File?

To: "Buzbee, James" <James.Buzbee@xxxxxxxxxxxx>
Subject: Re: LBA to File?
From: Chris Wedgwood <cw@xxxxxxxx>
Date: Thu, 6 Mar 2003 14:16:31 -0800
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <3E67BFA7.4080601@xxxxxxxxxxxx>
References: <3E67BFA7.4080601@xxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
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On Thu, Mar 06, 2003 at 02:37:43PM -0700, Buzbee, James wrote:

> We've been running an IDE analyzer on our system in order to better
> understand the pattern of disk usage for our application. We're
> seeing what appears to be a high number of writes to a particular
> area of the drive, and we're having trouble determining what is
> being accessed.

Is this near the middle of the fs? --- if so, it's likely an internal
log.

> The analyzer gives us output in terms of LBA accesses.  Is there an
> easy way to translate an LBA address into a particular file or
> perhaps an internal XFS data structure?

LBA -> block should be possible

Finding the file for that would be expensive but doable.



  --cw


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