Cache Controller History Snapshot Report
Data source | Performance data collector |
|---|---|
Fields shown in Initial display | SSID; TYPE; MODEL; SRLNUM;TOTALIOS; IOSSEC; RIOSSEC; READPERC; READHITP; WIOSSEC; WRTEPERC; WRTEHITP; NRIOSEC; NRMRPERC; NORMRDHP; VENDOR; VMODEL |
Report name verb | PERF_CACHE |
Member name | SRMBR021 |
See the Report filters for performance reports defined for a list of the report option keywords that are available on this report.
The following table presents a field list for the Cache Controller History Snapshot Report.
Field list for the Cache Controller History Snapshot Report
Column heading | Field name | Description |
|---|---|---|
Cache Storage | CCUSTOR | The subsystem storage available, in bytes, for allocation as cache space. |
CFW % | CFWPERC | The percentage of I/Os that were cache fast writes. |
CFW Hit% | CFWHITP | The hit percentage for cache fast write operations. |
CFW/sec | CFWSEC | The number of cache fast write operations issued per second. |
DFW % | DFWPERC | The percentage of I/Os that were DASD fast writes. |
DFW Hit% | DFWHITP | The hit percentage for DASD fast write operations. |
DFW/sec | DFWSEC | The number of DASD fast write operations issued per second. |
I/Os sec | IOSSEC | The number of I/O operations issued per second. |
VendorModel | VMODEL | The vendor model number. |
Model | MODEL | The cache controller model number. |
Non-volatile Storage | NVSTOR | The non-volatile cache storage allocated in bytes. |
Norm Read % | NRMRPERC | The percentage of I/Os that were normal reads. |
Norm Read Hit% | NORMRDHP | The hit percentage for normal read operations. |
Norm Read/sec | NRIOSEC | The number of normal read operations issued per second. |
Norm Write/sec | NWIOSEC | The number of normal write operations issued per second. |
Normal Write % | NRMWPERC | The percentage of I/Os that were normal writes. |
Normal Write Hit% | NORMWRHP | The percentage of I/Os that were normal writes. |
Read % | READPERC | The percentage of I/O operations that were reads. |
Read Hit% | READHITP | The hit percentage of read operations. |
Read/sec | RIOSSEC | The number of read operations issued per second. |
Seq Read % | SEQRPERC | The percentage of I/Os that were sequential reads. |
Seq Read Hit% | SEQRDHP | The number of normal write operations issued per second. |
Seq Read/sec | SRIOSEC | The number of sequential read operations per second. |
Seq Write % | SEQWPERC | The percentage of I/Os that were sequential writes. |
Seq Write Hit% | SEQWRHP | The percentage of I/Os that were sequential writes. |
Seq Write/sec | SWIOSEC | The number of write operations issued per second. |
Serial Number | SRLNUM | The cache controller serial number. |
SSID | SSID | The system identifier. |
Total I/Os | TOTALIOS | The total I/O count for a director. |
TYPE | TYPE | The cache controller type identifier. |
Vendor | VENDOR | The vendor identifier. |
Write % | WRTEPERC | The percentage of I/O operations that were writes. |
Write Hit% | WRTEHITP | The hit percentage of write operations. |
Write/sec | WIOSSEC | The number of write operations issued per second. |
The following figure provides a sample of the Cache Controller History Snapshot Report.
Cache Controller History Snapshot Report example
BMC Software, Inc. Generated:12/15/2004(2004.196)@13:59
SSID TYPE Model Serial Total I/Os Read Read Read Write Write Write Norm Read Norm Read Norm Read Vendor Vendor
Number I/Os sec /sec % Hit% /sec % Hit% /sec % Hit% Model
--------------------------------------------------------------------------------------------------------------------------------
00E4 3990 EC 01646 52,938 58.82 23.40 39.7 97.8 35.42 60.2 99.7 23.32 39.7 97.8 EMC 04
00E5 3990 EC 01646 55,485 61.65 58.11 94.2 98.3 3.54 5.7 99.7 56.68 95.0 98.3 EMC 04
00E8 3990 EC 01646 67,149 74.61 64.50 86.4 98.9 10.11 13.5 99.2 64.15 89.3 98.9 EMC 04
00E9 3990 EC 01646 17,019 18.91 17.25 91.1 94.7 1.66 8.8 100.0 15.38 90.3 94.0 EMC 04
--------------------------------------------------------------- Totals ---------------------------------------------------------
192,591
********************************************* End of Cache Controller Snapshot Report *******************************************