GPA Manual

Description of GPA Reports

Guardian Performance Analyzer (GPA) Manual—135081

3-11

Disk Volume Performance Analysis

This section of the report (Example 3-7) provides the following items of information for

each disk volume in the system:

(15) CPU Count: The total number of processors.

(16) Avg CPU Busy (^): The average of the percentage busy time for all

processors.

(17) TUNING WINDOW (w): The amount by which the percentage busy time of

any processor on the node can vary from the average for all processors without

being considered out of balance. This value depends on the degree to which the

system is utilized (see Item 15 above); the higher the percentage utilization, the

smaller the tuning window.

(18) PCB Count: The total number of PCBs for all processors.

(19) Node SWAP Rate: The total number of page swaps per second.

(20) VOLUME Count: The total number of disk volumes.

(21) Interrupt Busy (+): The portion of the CPU time spent processing interrupts.

Example 3-7. Disk Volume Performance Analysis

DISK VOLUME PERFORMANCE ANALYSIS

VOLUME UNT CPU(S) CTL REQUEST AVG PROCESS REQUEST CACHE CACHE

NAME NOS NUM QUEUE DEVICE BUSY% RATE HIT CALLS PER

P:M PC:BC TIME BUSY% /SECOND REQUEST

-------- --- ----- --- ------- ----- ------- ------- ----- --------

$SYSTEM 0:1 0: 1 %01 25.11 18.91 7.25 12.12 66.1 1.0

$NSMS 0:1 2: 3 %01 24.26 0.00 6.36 4.03 99.9 1.2

$ClO 2:3 0: 1 %01 19.19 4.22 2.62 3.22 90.2 1.2

$PROJEC 2: 2: 3 %01 114.23 0.00 5.63 1.06 99.7 1.2

$DRIVER 4: 0: 1 %01 26.49 1.93 0.88 1.09 90.7 0.9

$XPRESS 3: 2: 3 %01 51.38 0.00 1.72 0.00 52.6 1.3

$MEAS 4:5 2: 3 %01 56.45 0.00 0.54 0.00 0.0 2.6

$B40 5: 0: 1 %01 0.00 0.41 0.19 0.00 0.0 4.0*

$X42 6: 2: 3 %01 0.00 0.00 0.50 0.00 0.0 6.0*

(1) VOLUME: The volume name.

(2) UNT NOS P:M: The unit numbers of the primary (P) and mirror (M) disks. If

the device is not mirrored, only the primary disk is identified.

(3) CPU(S) PC:BC: The identification numbers of the primary and backup

processors for the volume.

(4) CTL NUM: The number (in octal) of the primary controller for the volume.

(5) REQUEST QUEUE TIME: The request queue time (in milliseconds).