From: Green, Simon (SGreen@KRAFTEUROPE.COM)
Date: Tue Oct 29 2002 - 06:25:12 EST
Use the standard command "defragfs -r /your/filesystem".
Simon Green
Philip Morris ITSC Europe
AIX-L Archive at http://marc.theaimsgroup.com/?l=aix-l&r=1&w=2
AIX FAQ at http://www.faqs.org/faqs/aix-faq/
N.B. Unsolicited email from vendors will seldom be appreciated.
> -----Original Message-----
> From: Marcelino Mata [mailto:mmata@MULTIMATIC.COM]
> Sent: 28 October 2002 17:33
> To: aix-l@Princeton.EDU
> Subject: Optimal JFS Fragment size
>
>
> The default Fragment Size for JFS is 4096 bytes. In theory,
> 4096 should
> give optimal performance at the cost of wasted space. All my current
> filesystems have been created with the system default. I am
> need to create
> a new 200Gb JFS filesystem this week. I would like to run some
> utility/command against an existing 4096 fragment size filesystem to
> determine how much wasted space I have. The data type on the existing
> filesystem will be the same as the 200Gb filesystem so I
> should get good
> data.
>
> Can any recommend a command or utility for producing this report?
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