ADSM-L

Re: Semote storage pool

2003-02-20 11:56:16
Subject: Re: Semote storage pool
From: Richard Sims <rbs AT BU DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 18 Feb 2003 16:48:05 -0500
>It doesn't matter how you use it. Forcing TSM to work its I/O at network
>speeds when it is designed to work at bus speeds will show badly. You'll
>be disappointed.

Mark - I wonder if that traditional distinction will prevail in the near
       future.  Network evolution has been accelerating, largely driven
by such storage needs, and so I think the disparity between bus and wire
will tend to lessen, and to perhaps conceptually merge into a single amalgam
of "Device Access Pathing".  Parallel pathing is becoming rather passe,
with serial pathing coming to the fore with the speed made possible by its
simplicity in not having to wait for the last horse to pass the finish line
before declaring unit data arrival.  Generalized networking will always
entail more overhead in its packetizing, but I think we'll see an increasing
number of network-based storage units with very acceptable performance as
10GB and higher speed networking arrangements arrive.

  Richard Sims, BU    at home, under 2' of latest snow arrival

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