On Thu, 18 Sep 2008 16:34:05 +0200, John Ticic IBM-MAIN wrote:
>You can also use the SETIOS command.
>
>Once the LCUs have been converted, the other LPARs can't move the aliases
>around. The IBM documentation states that they are ignored.
>
>RMF will show you the LCU and HyperPAV activity. The MVS DEVSERV
command : D
>M=DEV will give you information about devices. You should see HyperPAV
>devices listed here.
John,
I had problems finding any description about the way HyperPAV works. My
also assumed that converting the LCU(s) to HyperPAV in one system has
nothing to do with dynamic aliases in other systems in the sysplex.
Today I eventually got a possibility to test:
- 3 systems (all z/OS 1.9, let's call them WLMA, HPAV, and WLMB) in a sysplex
in a single CEC (2094)
- IBM DS8000.
HyperPAV set in system HPAV using
setios hyperpav=yes
Eight jobs start concurrently in WLMA, all writing to the same two devices
(unit
addresses 7661 and 7861)
RMF display during the time eight jobs write to the same volume:
--------------------------------------------------------------------------------------
CPU= 10/ 10 UIC= 65K PR= 0 System= WLMA Delta
11:36:14 I= 0% DEV ACTV RESP IOSQ -DELAY- PEND DISC CONN %
D %D
STG GRP VOLSER NUM PAV LCU RATE TIME TIME CMR DB TIME TIME
TIME UT RV
KF7861 7861 5* 006B 3126 1.0 0.1 0.3 0.0 0.4 0.1 0.5 41 0
KF7661 7661 5* 006A 3125 1.0 0.0 0.3 0.0 0.4 0.1 0.5 41 0
--------------------------------------------------------------------------------------
CPU= 7/ 7 UIC= 65K PR= 0 System= HPAV Delta
11:37:04 I= 0% DEV ACTV RESP IOSQ -DELAY- PEND DISC CONN
%D %D
STG GRP VOLSER NUM PAV LCU RATE TIME TIME CMR DB TIME TIME
TIME UT RV
KF7661 7661 1.0H 006A 0.000 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
--------------------------------------------------------------------------------------
DEVSERV display before the jobs were started:
--------------------------------------------------------------------------------------
IEE421I RO *ALL,DS QP,7661,VOLUM 197
WLMA RESPONSES ---------------------------------------------------
IEE459I 11.26.14 DEVSERV QPAVS 686
HOST SUBSYSTEM
CONFIGURATION CONFIGURATION
--------------- ---------------------
UNIT UNIT UA
NUM. UA TYPE STATUS SSID ADDR. TYPE
----- -- ---- ------ ---- ---- ----------
07661 61 BASE B760 61 BASE
**** 1 DEVICE(S) MET THE SELECTION CRITERIA
HPAV RESPONSES ---------------------------------------------------
IEE459I 11.26.14 DEVSERV QPAVS 196
HOST SUBSYSTEM
CONFIGURATION CONFIGURATION
--------------- ---------------------
UNIT UNIT UA
NUM. UA TYPE STATUS SSID ADDR. TYPE
----- -- ---- ------ ---- ---- ----------
07661 61 BASE-H B760 61 BASE
**** 1 DEVICE(S) MET THE SELECTION CRITERIA
WLMB RESPONSES ---------------------------------------------------
IEE459I 11.26.14 DEVSERV QPAVS 843
HOST SUBSYSTEM
CONFIGURATION CONFIGURATION
--------------- ---------------------
UNIT UNIT UA
NUM. UA TYPE STATUS SSID ADDR. TYPE
----- -- ---- ------ ---- ---- ----------
07661 61 BASE B760 61 BASE
--------------------------------------------------------------------------------------
DEVSERV display about half an hour later:
--------------------------------------------------------------------------------------
IEE421I RO *ALL,DS QP,7861,VOLUM 388
WLMA RESPONSES ---------------------------------------------------
IEE459I 11.52.41 DEVSERV QPAVS 947
HOST SUBSYSTEM
CONFIGURATION CONFIGURATION
--------------- ---------------------
UNIT UNIT UA
NUM. UA TYPE STATUS SSID ADDR. TYPE
----- -- ---- ------ ---- ---- ----------
07861 61 BASE B780 61 BASE
078AB AB ALIAS-7861 B780 AB ALIAS-61
078AC AC ALIAS-7861 B780 AC ALIAS-61
078AD AD ALIAS-7861 B780 AD ALIAS-61
078B7 B7 ALIAS-7861 B780 B7 ALIAS-61
**** 5 DEVICE(S) MET THE SELECTION CRITERIA
HPAV RESPONSES ---------------------------------------------------
IEE459I 11.52.41 DEVSERV QPAVS 387
HOST SUBSYSTEM
CONFIGURATION CONFIGURATION
--------------- ---------------------
UNIT UNIT UA
NUM. UA TYPE STATUS SSID ADDR. TYPE
----- -- ---- ------ ---- ---- ----------
07861 61 BASE-H B780 61 BASE
**** 1 DEVICE(S) MET THE SELECTION CRITERIA
WLMB RESPONSES ---------------------------------------------------
IEE459I 11.52.41 DEVSERV QPAVS 916
HOST SUBSYSTEM
CONFIGURATION CONFIGURATION
--------------- ---------------------
UNIT UNIT UA
NUM. UA TYPE STATUS SSID ADDR. TYPE
----- -- ---- ------ ---- ---- ----------
07861 61 BASE B780 61 BASE
078AB AB ALIAS-7861 B780 AB ALIAS-61
078AC AC ALIAS-7861 B780 AC ALIAS-61
078AD AD ALIAS-7861 B780 AD ALIAS-61
078B7 B7 ALIAS-7861 B780 B7 ALIAS-61
**** 5 DEVICE(S) MET THE SELECTION CRITERIA
--------------------------------------------------------------------------------------
--
Zaromil
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