David,

Check the FILE/TTY Readch and Writech numbers while only one drive is
active on the system.  Our system is small enough that we get that
one-drive-active condition.

Thanks.

Tab







David Longo <David.Longo AT HEALTH-FIRST DOT ORG>@VM.MARIST.EDU> on 02/13/2002
06:31:54 PM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

Sent by:  "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>


To:   ADSM-L AT VM.MARIST DOT EDU
cc:
Subject:  Re: 3584 amd SDG R03


How do use "topas" to report on Tape drive throughput?

I have topas on AIX 4.3.3 ML9 and TSM server 4.2.1.9 and IBM 3584
library through McData switches.

David Longo

>>> Tab.Trepagnier AT LAITRAM DOT COM 02/13/02 07:13PM >>>
Eric,

That with "drive compression" turned on - device class format = drive.

That number comes from "topas" which is measuring OS activity and reports
physical bytes, not TSM's logical bytes.

Thanks.

Tab








"Loon, E.J. van - SPLXM" <Eric-van.Loon AT KLM DOT COM>@VM.MARIST.EDU> on
02/12/2002 03:06:18 AM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

Sent by:  "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>


To:   ADSM-L AT VM.MARIST DOT EDU
cc:
Subject:  Re: 3584 amd SDG R03


Hi Tab!
Is that compressed? I spoke about native, so uncompressed.
Kindest regards,
Eric van Loon
KLM Royal Dutch Airlines