Siemens SM2 monitoring system User Manual
274
U3585-J-Z125-8-76
PCA CACHE report
SM2 reports
PCA CACHE report
This report provides monitored data on the caches of selected controllers.
Report output
The PCA CACHE report is output only at the explicit request of the SM2 user with the help
of the SELECT-PCA-CONTROLLER statement (see page 176). This statement is used to
output a PCA CONTROLLER report together with a PCA CACHE report for the selected
controllers. The PCA CACHE report supplies detailed information on the controller caches.
The report can only be output if the SM2 administrator has activated the monitoring process
using the statement START-MEASUREMENT-PROGRAM TYPE=*PCA.
of the SELECT-PCA-CONTROLLER statement (see page 176). This statement is used to
output a PCA CONTROLLER report together with a PCA CACHE report for the selected
controllers. The PCA CACHE report supplies detailed information on the controller caches.
The report can only be output if the SM2 administrator has activated the monitoring process
using the statement START-MEASUREMENT-PROGRAM TYPE=*PCA.
Overflow screens may be requested for this report.
The monitored data output is sorted in accordance with the size of the cache (CACHE
SIZE). It is possible to output data on up to 32 controllers.
The monitored data output is sorted in accordance with the size of the cache (CACHE
SIZE). It is possible to output data on up to 32 controllers.
Monitoring information
CTL-DEV-MN
Mnemonic name of the controller’s CONTROL DEVICE
CACH ID
Cache ID
CACHE SIZE
Size of the cache in MB
PREF. LEN.
Prefetch length for high-speed caching reads in input/output opera-
tions
tions
#
PEND. BLOCKS
Number of blocks (2Kb/4Kb, depending on the disk format) still to be
relocated to disk
relocated to disk
READ (1/S)
Total number of read operations (in I/Os per second)
C-READ (1/S)
Total number of read operations to be executed as fast reads
(caching reads) (in I/Os per second)
(caching reads) (in I/Os per second)
D017ZE03 SM2 PCA CACHE CYCLE: 60 S 99-03-24 11:11:02
CTL-DEV-MN: A93F
----+-----+-------+--------+--------+--------+------+--------+--------+--------
CACH|CACHE| PREF. | #PEND. | READ | C-READ |READ- | WRITE |FAST W. | C-OVER
ID |SIZE | LEN. | BLOCKS | (1/S) | (1/S) |H-R. %| (1/S) | (1/S) | (1/S)
----+-----+-------+--------+--------+--------+------+--------+--------+--------
5 | 20 | 0 | 594 | 324.8 | 324.8 |100.0 | 178.0 | 178.0 | 0.0
4 | 4 | 16 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0
----+-----+-------+--------+--------+--------+------+--------+--------+--------
----+-----+-------+--------+--------+--------+------+--------+--------+--------
CACH|CACHE| PREF. | #PEND. | READ | C-READ |READ- | WRITE |FAST W. | C-OVER
ID |SIZE | LEN. | BLOCKS | (1/S) | (1/S) |H-R. %| (1/S) | (1/S) | (1/S)
----+-----+-------+--------+--------+--------+------+--------+--------+--------
5 | 20 | 0 | 594 | 324.8 | 324.8 |100.0 | 178.0 | 178.0 | 0.0
4 | 4 | 16 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0
----+-----+-------+--------+--------+--------+------+--------+--------+--------