ADSM-L

Re: Transfer rate in TSM 4.1 OS/390

2001-03-13 12:44:22
Subject: Re: Transfer rate in TSM 4.1 OS/390
From: "Castillo, Wilfredo" <CASTILLOWU AT PDVSA DOT COM>
Date: Tue, 13 Mar 2001 13:10:54 -0400
Adolph, the drives are Escon connections. We have two (2) channels to the
controller. There is not anyone using
 the tape drives at the same time.

Thanks again
---------------------- Remitido por WILFREDO CASTILLO/CASTILLOWU/INS/PDVSA con
fecha 13/03/2001 13:07 ---------------------------
fecha 13/03/2001 13:07 ---------------------------


akahan AT ica DOT net con fecha 13/03/2001 11:34:00
Destinatarios:     ADSM-L AT VM.MARIST DOT EDU@Internet
CC:      (cci: WILFREDO CASTILLO/CASTILLOWU/INS/PDVSA)

Asunto: Re: Transfer rate in TSM 4.1 OS/390

Wilfredo, then you need to look at how the drives are connected Escon or
Ficon - how many connections to the controller. Was anything else using tape
drives at the same time?

I'm seeing rates around 20MB/sec which after compression would be about
7-8MB/sec.

Adolph
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