Mailing List os2-netware_users@2rosenthals.com Archived Message #102

From: Lewis G Rosenthal <os2-netware_users@2rosenthals.com> Full Headers
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Sender: os2-netware_users-owner <os2-netware_users-owner@2rosenthals.com>
Subject: OS/2-NetWare Users List: OS/2 - Netware Users : NSS or Traditional
Date: Tue, 24 Jun 2003 21:30:05 EST5EDT4,M4.1,M10.5
To: os2-netware_users@2rosenthals.com

Tom, when you say "a bunch," how many files are we talking about? In general, NSS should provide better performance, as it is a 64-bit, B-tree-based filesystem. For a hundred files, you may not necessarily see a big performance boost, though. Obviously, you'll want to tune whichever system you use to a large block size with no suballocation (for the initial storage of the mpg's). There's an excellent AppNote on tuning NSS under NetWare 6 at http://developer.novell.com/research/appnotes/2002/july/01/a020701.htm.

I've been quite pleased with my NSS performance, though I have had the recent task of rebuilding one of my pools which took forever (space usage figures were all over the map & the server kept complaining that it was out of space). That said (about the performance issue), it's hatrd to tell whether the big performance boost has been NSS, NetWare 6, or the beefed up hardware on which I've run it ('cause you can't just run NW6 on an old '486 lying around with 128MB RAM!).

I do have a BorderManager 3.7 installation running on a NetWare 6 server with a mix of NSS and traditional volumes (BorderManager installations are strongly urged - read: MUST - to install the cache volume on a traditional FS. This is mainly because of the better small object performance of traditional volumes (we see the same thing on OS/2 between HPFS & JFS: thousands of small files take more time to make the journal entries than to write, making a non-journaling system more efficient, especially when the data is unimportant, such as cached web objects).

Another good article (though a bit dated) on NSS is located at http://developer.novell.com/research/appnotes/1997/septembe/a2frame.htm.

HTH!

Tom Trippaers wrote:

Did anyone do a test on the difference in performance with NSS volumes and trad. volumes ?
I need a NW6sp2 with a data volume READONLY.
Stuff to be read : a bunch of mpg's (size 5MB)
Should I install NSS or TFS ???
No compression or quotas needed.
The clients are all (except myself) Win2k.
I need only read performance through a drive mapping.

Tom



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Lewis
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Lewis G Rosenthal, CNA
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