From: Jan-Frode Myklebust (janfrode@PARALLAB.UIB.NO)
Date: Tue Mar 30 2004 - 14:07:56 EST
On Tue, Mar 30, 2004 at 03:46:09PM -0300, Edson Noboru Yamada wrote:
>
> Is there any drawback in using JFS2 rather than JFS?
>
Yes.. drawbacks of JFS2:
- doesn't support quotas (strange that it's not supported??)
- doesn't support DMAPI (strange that it's not supported??)
- doesn't support compression
- has caused filesystem corruptions for me on 32-bit AIX (2
years ago, so it's probably fixed now)
- still seems to be problematic on 64 bit AIX 5.1, but it's
probably because of a combination of big memory (64 GB) and
a bit special workload (often going from lots of date in
buffer cache, to nearly no data in buffer cache)...
But I would still prefer JFS2 over JFS if it wasn't for this last
point.. it is after all a more modern file system without the 64 Gbyte
file size limit, without 1 TB file system limit, and with _a_lot_
faster operation on directories with many files.
-jf
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