W dniu 02.07.2020 o 23:51, Tony Thigpen pisze:
I am seeing some DS8000s where a mod-27 is defined as 30051 cylinders.
I am seeing other sites were the mod-27 is defined with 32760 cylinders.
I know the architectural limit of a mod-27 is 32760 cylinders, but if
you work with multiples of mod-1
On Jul 2, 2020, at 9:21 PM, Pew, Curtis G wrote:
>
> I consider them while
“I consider them experimental while …”
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Pew, Curtis G
curtis@austin.utexas.edu
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On Jul 2, 2020, at 7:25 PM, Feller, Paul
<02fc94e14c43-dmarc-requ...@listserv.ua.edu> wrote:
>
> In this shop a MOD-27 is 32,760 cyls and a MOD-54 is 65,520 cyls. As for how
> they are allocated, that I can't answer.
Several years ago I moved all our DASD to “3390-54” with 65,520 cylinders
we do have are 1,177,554 cyls.
Thanks..
Paul Feller
GTS Mainframe Technical Support
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Seymour J Metz
Sent: Thursday, July 02, 2020 6:12 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What is the real size of a 3390-27 a
behalf of
Tony Thigpen [t...@vse2pdf.com]
Sent: Thursday, July 2, 2020 5:51 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: What is the real size of a 3390-27 and 3390-54
I am seeing some DS8000s where a mod-27 is defined as 30051 cylinders. I
am seeing other sites were the mod-27 is defined with 32760 cyl
Some physical devices only allocate volumes in multiples of Mod 1s, or
gather scattered Mod 1 segments into a full volume. 32K cylinders is
29.4 times a Mod 1 of 1113 cylinders. Not much different, but need to
make sure DR site or replacement dasd unit uses same size or larger
for restores or rep
I am seeing some DS8000s where a mod-27 is defined as 30051 cylinders. I
am seeing other sites were the mod-27 is defined with 32760 cylinders.
I know the architectural limit of a mod-27 is 32760 cylinders, but if
you work with multiples of mod-1 units, the 30051 number make sense.
I also kno
