We recently inherited responsibility for a z/VM 5.2 system that had been
maintained by another group. They had a DR test today, and I logged on
and looked around. The LPAR is configured with 3G central storage and
no expanded storage. I issued the following commands:
q alloc page
EXTENT EXTENT TOTAL PAGES HIGH %
VOLID RDEV START END PAGES IN USE PAGE USED
------ ---- ---------- ---------- ------ ------ ------ ----
VMPG00 8719 1 1000 180000 1 1 1%
VMPG01 871A 1 1000 180000 0 0 0%
VMPG02 871B 1 1000 180000 0 0 0%
VMPG03 871C 1 1000 180000 0 0 0%
------ ------ ----
SUMMARY 720000 1 1%
USABLE 720000 1 1%
Ready;
ind
AVGPROC-003% 01
MDC READS-000112/SEC WRITES-000003/SEC HIT RATIO-093%
PAGING-13/SEC STEAL-000%
Q0-00003(00000) DORMANT-00141
Q1-00000(00000) E1-00000(00000)
Q2-00001(00000) EXPAN-001 E2-00000(00000)
Q3-00000(00000) EXPAN-001 E3-00000(00000)
PROC 0000-003%
LIMITED-00000
Ready;
q xstor
Expanded storage is not available within this hardware configuration.
Ready(01401);
Since there's no expanded storage, where are those 13 pages/second
going? Is the system reading the one page that's out on DASD 13 times a
second? I did another Q ALLOC PAGE after the IND, and there's still
only one page out there.
Dennis O'Brien
"Elected office holds more perks than Elvis' nightstand." -- Dennis
Miller
