Hi Dennis,
I know for us Dynamic PAV just did not work unless we had both "I/O
priority management" & "Dynamic alias management" set to YES in WLM.
Service Coefficient/Service Definition Options
Command ===>
______________________________________________________________
Enter or change the Service Coefficients:
CPU . . . . . . . . . . . . . 1.0 (0.0-99.9)
IOC . . . . . . . . . . . . . 0.1 (0.0-99.9)
MSO . . . . . . . . . . . . . 0.0000 (0.0000-99.9999)
SRB . . . . . . . . . . . . . 1.0 (0.0-99.9)
Enter or change the service definition options:
I/O priority management . . . . . . . . YES (Yes or No)
Dynamic alias management . . . . . . . . YES (Yes or No)
Best Regards,
Sam Knutson, GEICO
Performance and Availability Management
mailto:[EMAIL PROTECTED]
(office) 301.986.3574
"Think big, act bold, start simple, grow fast..."
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Dennis Leong
Sent: Tuesday, April 04, 2006 5:20 PM
To: [email protected]
Subject: dynamic PAV
We recently migrated all our mainframe data to a new Hitachi storage
array (9990v). In the initial setup we defined in HCD base (3390B) and
alias
(3390A) volumes with wlmpav=yes (for the aliases). On the storage array
we
have "Compatible PAV" enabled. In WLM we have Dynamic alias
management
set to yes.
We are running z/os 1.4 and wlm in goal mode.
My problem is that I cannot see any dynamic assignment of alias volumes
to base volumes with high IOS queuing times. Using HDS Storage
Navigator's Compatible PAV manager I see the first 64 base volumes (out
of 192) with 1 alias volume in each of my control units. I have yet to
see anything change over the past 4 weeks. I would have expected to see
maybe a base volume (beyond the first 64) to have an alias assigned
especially if the base volume has high ios queuing times (as seen in
Omegamon).
I can however manually assign alias volumes to base but this is not
dynamic
management. What am I missing to allow dynamic management of
pav's? Thank you.
- enD sin
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