Re: LTO tape cartridge(200GB/400GB) stores data 500GB+.

2004-04-18 01:05:39
Subject: Re: LTO tape cartridge(200GB/400GB) stores data 500GB+.
From: "Stapleton, Mark" <mark.stapleton AT BERBEE DOT COM>
Date: Sun, 18 Apr 2004 00:05:02 -0500
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Roger Deschner
>Do client compression.

This is (generally) not good advice. The hardware compression performed
by tape drive technology achieves faster, more efficient compression;
the TSM server itself has nothing to do with it. Some clients do not
work and play well with TSM's client compresssion code; NetWare machines
in particular will redline CPU utilitization when they are doing their
own compression, and tend to abend with alarming regularity.

The only time I've seen client-side compression in a favorable light is
when you're working with stressed networks, and in these days of
100Mb/GB Ethernet, stressed networks are becoming increasingly rare.

Mark Stapleton

<Prev in Thread] Current Thread [Next in Thread>