Advanced POWER Virtualization on IBM System p5 - Previous ...

Cpu3 0 0 10 0 0 0 0 0 0 28 0 72 0.00 20
The topas command also has a new -D switch or D command to show disk
statistics that take virtual SCSI disks into account, as shown in Example 5-27.
Example 5-27 topas disk monitor screen
Topas Monitor for host: dbserver Interval: 2 Wed Oct 11 14:01:00 2006
============================================================================
Disk Busy% KBPS TPS KB-R ART MRT KB-W AWT MWT AQW AQD
hdisk0 47.1 3.2K 138.4 1.9K 4.7 21.1 1.3K 7.2 17.6 9.5 7.6
A cross-partition view of system resources is available with the topas -C
command. This command will only see partitions running AIX 5L V5.3 ML3 or
later; without specific configuration it will not show Virtual I/O Server partitions.
Linux partitions cannot be shown at all at the time of writing. An example of the
output of this command is shown in Example 5-28.
Example 5-28 topas cross-partition monitor screen
Topas CEC Monitor Interval: 10 Wed Oct 11 14:10:30 2006
Partitions Memory (GB) Processors
Shr: 3 Mon: 2.0 InUse: 1.0 Shr:0.6 PSz: 2 Shr_PhysB: 0.02
Ded: 0 Avl: - Ded: 0 APP: 2.0 Ded_PhysB: 0.00
Host OS M Mem InU Lp Us Sy Wa Id PhysB Ent %EntC Vcsw PhI
-------------------------------------shared---------------------------------
appserver A53 U 0.8 0.3 4 0 2 0 97 0.01 0.20 3.9 312 0
nim A53 C 0.5 0.3 4 0 1 0 98 0.01 0.20 3.2 342 1
dbserver A53 U 0.8 0.3 4 0 1 0 98 0.01 0.20 2.9 336 1
------------------------------------dedicated-------------------------------
The topas -C command screen is split into header and partition regions. The
partition region is distinguishes between shared and dedicated processor
partitions.
The header section contains the global CEC information is comprised of three
columns. The Partitions column lists how many partitions of each type topas
found on the CEC. The Memory column shows the total and used memory in the
monitored partitions measured in gigabytes. The Processor column shows the
monitored processor types, shared and dedicated. The PSz shows the shared
processor pool size when the partition has shared processor pool authority. The
Shr_PhysB and Ded_PhysB values are comparable to the physc column in the
lparstat output, but it excludes the idle time.
The partition section lists all the partitions the topas command can find in the
CEC. The OS column indicates the type of operating system. In Example , the
A53 indicates AIX 5L V5.3. The M column shows the partition mode: shared,
Chapter 5. System management 329