edu] On
> Behalf Of Mike Shorkend
> Sent: Monday, December 28, 2009 1:58 PM
> To: IBM-MAIN@bama.ua.edu
> Subject: HDS/USP Model 27 DASD and DB2
>
> Hello All,
> We have started experimenting with MOD-27 disks on a USP600 box.
> We have found that with DB2, response times
e impacting you.
Kevin
-Original Message-
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of Mike Shorkend
Sent: Monday, December 28, 2009 1:58 PM
To: IBM-MAIN@bama.ua.edu
Subject: HDS/USP Model 27 DASD and DB2
Hello All,
We have started experimenting with MO
> Mike Shorkend
> Sent: Tuesday, December 29, 2009 3:37 AM
> To: IBM-MAIN@bama.ua.edu
> Subject: Re: [IBM-MAIN] HDS/USP Model 27 DASD and DB2
>
> Thanks for your responses.
> Ed/Adolph - the disks are net new - we have not started consolidating yet.
>
> Ron - Cache disk r
oups formatted
> as
> 3390-27 will often cause the problem you are seeing.
>
>
>
> Ron
>
>
>
> > -Original Message-
>
> > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
> Behalf Of
>
> > Mike Shorkend
>
> >
; -Original Message-
> From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of
> Mike Shorkend
> Sent: Monday, December 28, 2009 10:58 AM
> To: IBM-MAIN@bama.ua.edu
> Subject: [IBM-MAIN] HDS/USP Model 27 DASD and DB2
>
> Hello All,
> We ha
Inc.
416-229-2950 Ext 304
-Original Message-
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf
Of Mike Shorkend
Sent: Monday, December 28, 2009 1:58 PM
To: IBM-MAIN@bama.ua.edu
Subject: HDS/USP Model 27 DASD and DB2
Hello All,
We have started experimenting with
Hello All,
We have started experimenting with MOD-27 disks on a USP600 box.
We have found that with DB2, response times have deteriorated significantly.
We are seeing response times of more than 10ms on a fairly active disk.
Disconnect time accounts for about 90% of the time. Cache disk ratio has
g
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