I get quite a few queries about this concerning MXI as it does not show
"3390-27", "3390-54" etc in the device type fields for DASD and always use the
following in my reply :
(i) 3390 devices have x'200F' in UCBTBYT3+4
(ii) 3390-A have x'3E' in DCEOBRDT whereas 3390-9 have x'32' (for completeness
x'24' = 3390-3, x'27' = 3390-2 and x'26' = 3390-1)
(iii) Names such as "3390-27" and "3390-54" are colloquial terms that do not
relate to an actual device model specification - they are just large 3390-9s
split on some capacity-based ranges.
What I do allow if for the user to set up their own local definitions on what
they believe a "3390-27" is and they can then use this as a grouping filter (or
"scope" as we call it) - for example :
Scope=Name(3390-27),Subject(DASD),Type(Group),
Expr(DASD.TOTALK/1024 > 8578 AND
DASD.TOTALK/1024 <= 27555)
Scope=Name(3390-54),Subject(DASD),Type(Group),
Expr((DASD.TOTALK > (1024*27555) AND DASD.DEVTYPE NE "3390-A"))
Rob Scott
Lead Developer
Rocket Software
77 Fourth Avenue . Suite 100 . Waltham . MA 02451-1468 . USA
Tel: +1.781.684.2305
Email: [email protected]
Web: www.rocketsoftware.com
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Edward Jaffe
Sent: 16 February 2013 21:36
To: [email protected]
Subject: Re: Determining 3390 Model
On 2/16/2013 11:04 AM, Mike Schwab wrote:
> A is when you get to EAVs with Cylinder Allocations.
> 9 is non-EAV without Cylinder Allocation areas.
The problem with this theory is that EAV is a z/OS software concept only. It
does not apply to other operating systems. More to the point, the hardware
doesn't know about track-managed space, cylinder-managed space, break-point
values, etc; it knows only about the size of the volume in cylinders (or Mod1
multiples). Yet, the DS8100 (2107) hardware console--whose display I would
paste in if IBM-MAIN allowed anything other than plain text--shows 3390-9 as
the model number for the "Mod-51" volume and shows 3390-A as the model number
for the "Mod-81" volume.
--
Edward E Jaffe
Phoenix Software International, Inc
831 Parkview Drive North
El Segundo, CA 90245
http://www.phoenixsoftware.com/
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