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 ---------------------------
[EMAIL PROTECTED] con fecha 13/03/2001 11:34:00
Destinatarios: [EMAIL PROTECTED]@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
----- Original Message -----
From: "Castillo, Wilfredo" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, March 13, 2001 9:24 AM
Subject: Re: Transfer rate in TSM 4.1 OS/390
> Thanks Adolph,
>
> The drives are 3590 E and I am using drives hardware compression.
>
> Wilfredo
>
>
>
>
>
> [EMAIL PROTECTED] con fecha 13/03/2001 10:02:00
> Destinatarios: [EMAIL PROTECTED]@Internet
> CC: (cci: WILFREDO CASTILLO/CASTILLOWU/INS/PDVSA)
>
> Asunto: Re: Transfer rate in TSM 4.1 OS/390
>
> You didn't mention which model of 3590 drive. The B models have a maximum
> native transfer rate of 9MB/sec and the E's have a maximum of 14MB/SEC.
How
> are the drives attached to your OS/390 system? Are you using TSM
compression
> or are you using the drives hardware compression? These can all impact
your
> throughput.
>
> Adolph
>
>
> ----- Original Message -----
> From: "Castillo, Wilfredo" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, March 13, 2001 8:13 AM
> Subject: Transfer rate in TSM 4.1 OS/390
>
>
> > Anyone know about the highest transfer rate in TSM 4.1 OS/390 Server
from
> OMVS
> > Client through IBM 3494 Magstar 3590?. I have done some tests. The
highest
> > transfer rate that I have reached is 5MB/sec. Is it the maximum?
> >
> > I appreciate your help,
> >
> > Wilfredo Castillo
> > Data Center
> > Intesa - Caracas, Venezuela
> >
> >
> >
> > *************** PDVSA4S INTERNET E-MAIL USE ***************
> > This message may contain information solely of the interest of PDVSA or
> > its businesses. Copying, distribution, disclosure or any use of the
> > information contained in this transmission is permitted only to
> > authorized parties. If you have received this e-mail by error, please
> > destroy it and notify [EMAIL PROTECTED] or the sender by reply email.
> >
> > ****** USO DEL CORREO ELECTRONICO DE PDVSA HACIA INTERNET ******
> > Esta nota puede contener informacion de interes solo para PDVSA o sus
> > negocios. Solo esta permitida su copia, distribucion o uso a personas
> > autorizadas. Si recibio esta nota por error, por favor destruyala y
> > notifique al remitente o a [EMAIL PROTECTED]
>
>
>
>
>
> *************** PDVSA4S INTERNET E-MAIL USE ***************
> This message may contain information solely of the interest of PDVSA or
> its businesses. Copying, distribution, disclosure or any use of the
> information contained in this transmission is permitted only to
> authorized parties. If you have received this e-mail by error, please
> destroy it and notify [EMAIL PROTECTED] or the sender by reply email.
>
> ****** USO DEL CORREO ELECTRONICO DE PDVSA HACIA INTERNET ******
> Esta nota puede contener informacion de interes solo para PDVSA o sus
> negocios. Solo esta permitida su copia, distribucion o uso a personas
> autorizadas. Si recibio esta nota por error, por favor destruyala y
> notifique al remitente o a [EMAIL PROTECTED]
*************** PDVSA4S INTERNET E-MAIL USE ***************
This message may contain information solely of the interest of PDVSA or
its businesses. Copying, distribution, disclosure or any use of the
information contained in this transmission is permitted only to
authorized parties. If you have received this e-mail by error, please
destroy it and notify [EMAIL PROTECTED] or the sender by reply email.
****** USO DEL CORREO ELECTRONICO DE PDVSA HACIA INTERNET ******
Esta nota puede contener informacion de interes solo para PDVSA o sus
negocios. Solo esta permitida su copia, distribucion o uso a personas
autorizadas. Si recibio esta nota por error, por favor destruyala y
notifique al remitente o a [EMAIL PROTECTED]
