TPDC Manual (G06.24+)

Table Of Contents
Using the SPAM Performance Data Charts and
Reports
Tandem Performance Data Collector (TPDC) Manual526357-001
5-26
Disc I/Os per Second (DIOCHRT)
Individual share of total driver calls (system I/Os) and a graph of this share
Cumulative share of total driver calls
This chart uses the GLOBINFO and DOPENSUM entities.
Parameters used are:
LID—specifies the Measure Load ID
EXCLUDE—specifies a value under which to exclude the number of requests per
second
SECTION—specifies the report section number
The chart is sorted in descending order of total driver calls.
Disc I/Os per Second (DIOCHRT)
This 74-column chart displays the average I/O rates of each physical disk drive. It
shows:
Disc File System I/O Shares for System \CSO (Release D20)
---------------------------
[Total = 25 SysIOs/Sec]
SysIOs <-Shr% = %-age of Total--> Cum.
$Volume .Subvol .Filename /Secnd LSR Shr% 0 5 10 15 20 25 Shr%
-------------------------- ------ --- ==== +----+----+----+----+----+ ----
$LAB .NSS3 .DBPCB 3.3 S 12.9 |************* | 12.9
$GPATS2 .SYS00 .DIRECTRY 1.6 6.4 |****** | 19.3
$JACK .SYS00 .DIRECTRY 1.6 6.3 |****** | 25.5
$DATA .SYS00 .DIRECTRY 1.2 4.9 |***** | 30.4
$TUOMO .SYS00 .DIRECTRY 1.2 4.8 |***** | 35.3
$GPATS1 .SYS00 .DIRECTRY 1.2 4.8 |***** | 40.0
$IMAGE .SYS00 .DIRECTRY 1.1 4.3 |**** | 44.3
$USERS .SYS00 .DIRECTRY 1.1 4.3 |**** | 48.6
$WORK .SYS00 .DIRECTRY 1.0 3.8 |**** | 52.4
$JACK2 .SYS00 .DIRECTRY .9 3.6 |**** | 56.0
$TUBDV1 .SYS00 .DIRECTRY .9 3.5 |*** | 59.4
$DATA1 .SYS00 .DIRECTRY .8 3.0 |*** | 62.4
$DATA2 .SYS00 .DIRECTRY .8 3.0 |*** | 65.4
$JACK2 .JFDSPAM .QPGROUPS .7 2.8 |*** | 68.1
$DATA3 .SYS00 .DIRECTRY .6 2.3 |** | 70.4
$DATA4 .SYS00 .DIRECTRY .6 2.3 |** | 72.8
$SYSTEM .SYS00 .DIRECTRY .6 2.3 |** | 75.1
$GPADV1 .SYS00 .DIRECTRY .5 2.1 |** | 77.1
$MWR3 .SYS00 .DIRECTRY .5 2.0 |** | 79.1
$TOOLS .SYS00 .DIRECTRY .5 1.9 |** | 81.0
$TUBTS1 .SYS00 .DIRECTRY .5 1.9 |** | 82.9
$MWR2 .SYS00 .DIRECTRY .5 1.8 |** | 84.7
$LAB .NSS3 .DBNET .4 S 1.7 |** | 86.4
$GPADV2 .SYS00 .DIRECTRY .3 1.3 |* | 87.7
$GIAO2 .SYS00 .DIRECTRY .3 1.3 |* | 89.0
$MWR1 .SYS00 .DIRECTRY .3 1.0 |* | 90.1
+----+----+----+----+----+
0 5 10 15 20 25
LSR: L = Lock waits, S = block Splits, R = Remote accesses.