Actually you can define a model 27 or 54 in a IBM DS8k with a number of
cilinders not multiple of 1.113 (1 disk model-1 or 1 extent), but the
remaining space will be wasted
For instance in my shop there are defined model 27 with 32760 cilinders,
29,4 extents. The DS8k use 30 extents to define this
W dniu 2015-01-21 o 17:30, Tom Marchant pisze:
On Wed, 21 Jan 2015 15:11:13 +, Vernooij, CP (ITOPT1) - KLM wrote:
IIRC, all volumes must be a multiple of cyls, a 3390 model 1.
Really? I didn't think there was such a restriction.
There is such restriction, but not on z/OS side. It is
IBM DS* imposed this. It divides the space into Mod 1 chunks, then
each volume uses one or more chunks for its space, and you can add a
Mod 1 chunk to a volume.
On Wed, Jan 21, 2015 at 10:30 AM, Tom Marchant
<000a2a8c2020-dmarc-requ...@listserv.ua.edu> wrote:
> On Wed, 21 Jan 2015 15:11:13 +0
On Wed, 21 Jan 2015 15:09:38 +, Bob Shannon
wrote:
>>I think there are not special considerations with model 27 or model 54.Those
>>dasd are just 3390-9 devices with a bigger size.
>Correct. You aren't limited to Mod 27s or Mod 54s. As an example one can
>define a Mod-15. The "mod" is
On Wed, 21 Jan 2015 15:11:13 +, Vernooij, CP (ITOPT1) - KLM wrote:
>IIRC, all volumes must be a multiple of cyls, a 3390 model 1.
Really? I didn't think there was such a restriction.
--
Tom Marchant
--
For IBM-MAIN su
al Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Gonzalo Cengotita
Sent: 21 January, 2015 15:51
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: DASD Model-27 & 54 implementation
Hi,
I think there are not special considerations with model 27 or model
>I think there are not special considerations with model 27 or model 54.Those
>dasd are just 3390-9 devices with a bigger size.
Correct. You aren't limited to Mod 27s or Mod 54s. As an example one can define
a Mod-15. The "mod" is based on the size of the volume. Anything GT a Mod-9 and
LT a Mo
Hi,
I think there are not special considerations with model 27 or model 54.
Those dasd are just 3390-9 devices with a bigger size.
Regards,
Gonzalo Cengotita
2015-01-21 12:23 GMT+01:00 Buckton, T. (Theo) :
> Hi,
>
> Please refer me to documents containing notes on implementing dasd 3390
> model
Buckton, T. (Theo) wrote:
>Please refer me to documents containing notes on implementing dasd 3390
>model27 & 54 - considerations and configuring DFSMS. We are running z/OS 2.1
About z/OS v2.1, SMS, device management and emulation (with HCD and SMS) look
and search in
http://www-03.ibm.com/
