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write: wps avgserv minserv maxserv timeouts fails 0.3 31.3 2.0 34.6S 0 0 queue: avgtime mintime maxtime avgwqsz avgsqsz sqfull 16.7 0.0 5.2S 0.0 0.0 301 hdisk1 xfer: %tm_act bps tps bread bwrtn 0.0 0.0 0.0 0.0 0.0 read: rps avgserv minserv maxserv timeouts fails 0.0 0.0 0.0 0.0 0 0 write: wps avgserv minserv maxserv timeouts fails 0.0 0.0 0.0 0.0 0 0 queue: avgtime mintime maxtime avgwqsz avgsqsz sqfull 0.0 0.0 0.0 0.0 0.0 0 hdisk2 xfer: %tm_act bps tps bread bwrtn 0.0 0.0 0.0 0.0 0.0 read: rps avgserv minserv maxserv timeouts fails 0.0 0.0 0.0 0.0 0 0 write: wps avgserv minserv maxserv timeouts fails 0.0 0.0 0.0 0.0 0 0 queue: avgtime mintime maxtime avgwqsz avgsqsz sqfull 0.0 0.0 0.0 0.0 0.0 0 hdisk3 xfer: %tm_act bps tps bread bwrtn 0.4 621.4 0.1 74.5 546.9 read: rps avgserv minserv maxserv timeouts fails 0.0 60.6 0.6 5.7S 0 0 write: wps avgserv minserv maxserv timeouts fails 0.1 79.5 2.1 5.2S 0 0 queue: avgtime mintime maxtime avgwqsz avgsqsz sqfull 50.3 0.0 15.4S 0.0 0.0 0 hdisk4 xfer: %tm_act bps tps bread bwrtn 3.6 369.3K 2.8 14.0K 355.4K read: rps avgserv minserv maxserv timeouts fails 0.9 4.1 0.5 234.5 0 0 write: wps avgserv minserv maxserv timeouts fails 1.9 47.5 2.0 419.1 0 0 queue: avgtime mintime maxtime avgwqsz avgsqsz sqfull 0.2 0.0 5.7S 0.0 0.0 0 hdisk5 xfer: %tm_act bps tps bread bwrtn 0.0 0.0 0.0 0.0 0.0 read: rps avgserv minserv maxserv timeouts fails 0.0 0.0 0.0 0.0 0 0 write: wps avgserv minserv maxserv timeouts fails 0.0 0.0 0.0 0.0 0 0 queue: avgtime mintime maxtime avgwqsz avgsqsz sqfull 0.0 0.0 0.0 0.0 0.0 0 -------------------------------------------------------------------------------- The workload management commands Starting with Virtual I/O Server Version 1.3, there are commands that allow for monitoring partitions and collecting data in passive mode. The activation of workload management also allows you to view workload data using the topas command with the W switch. Collected data is stored in the /home/ios/perf/wlm 346 <strong>Advanced</strong> <strong>POWER</strong> <strong>Virtualization</strong> on IBM System p5
directory on a daily basis. The files are kept for two days and are then removed automatically. With the wkldout command, it is possible to extract data from the collected set related to CPU usage. To start data collection, the wkldmgr -start command has to be issued first, then the wkldagent -start command can be used. Example 5-45 shows how to use the wkldout command to extract data in ASCII format from that collected set. Example 5-45 Extracting performance data with the wkldout command $ ls /home/ios/perf/wlm xmwlm.061014 xmwlm.061015 xmwlm.log1 xmwlm.log2 $ wkldout -filename /home/ios/perf/wlm/xmwlm.061015 | tee xmwlm_061015 . . . Time="2006/10/15 10:20:49", PagSp/%totalused=0.69 Time="2006/10/15 10:20:49", Proc/swpque=0.03 Time="2006/10/15 10:20:49", Proc/runque=1.01 Time="2006/10/15 10:20:49", CPU/glwait=0.22 Time="2006/10/15 10:20:49", CPU/gluser=0.07 Time="2006/10/15 10:20:49", CPU/glkern=0.78 Time="2006/10/15 10:23:49", WLM/wlmstate=1.00 Time="2006/10/15 10:23:49", PagSp/%totalused=0.69 Time="2006/10/15 10:23:49", Proc/swpque=0.08 Time="2006/10/15 10:23:49", Proc/runque=1.02 Time="2006/10/15 10:23:49", CPU/glwait=0.25 Time="2006/10/15 10:23:49", CPU/gluser=0.07 Time="2006/10/15 10:23:49", CPU/glkern=0.78 Time="2006/10/15 10:26:49", WLM/wlmstate=1.00 $ ls backup nohup.out smit.transaction config smit.log viosfirewall.rules ioscli.log smit.script xmwlm_061015 $ As shown, to save the data into a file, the tee command has to be used since redirection of output to a file is not allowed in the restricted shell environment of the Virtual I/O Server. The file can then be transferred onto another machine and analyzed or displayed by other utilities. As also can be seen from the output, the data recorded by the wkldmgr and wkldagent commands contains only measurements for CPU and paging space. To collect data containing measurements for disk and network usage, use topas recording or nmon recording. Chapter 5. System management 347
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Front cover Advanced</stron
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Note: Before using this information
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2.1 New features in Version 1.3 of
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4.4.2 Configuration on the Virtual
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6.6.4 Managing memory resources . .
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3-9 Processing sharing mode and the
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5-14 Status window . . . . . . . .
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xiv Advanced <stro
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xvi Advanced <stro
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any form without payment to IBM, fo
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The team that wrote this redbook Th
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xxii Advanced <str
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- Additional information about the
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management” on page 257 discusses
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1.1.5 Virtual LAN 1.1.6 Virtual I/O
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The service processor provides the
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Adapter sparing Adapter sparing can
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1.4.1 IBM AIX 5L for System p5 syst
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Note: i5/OS partitions are only sup
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Function / capability IBM System z9
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1.6 The value of the Advanc
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18 Advanced <stron
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2.1 New features in Version 1.3 of
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► throughput and performance. For
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► IVM enhancements Industry leadi
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Shared Ethernet Adapter failover ca
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the partition. This allows you to c
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Figure 2-2 ASMI menu to enable the
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management interface for systems wi
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When setting up a partition, you ha
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partition with 0.50 processing unit
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processors and the other a single o
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Figure 2-5 shows the usage of the s
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2.4.5 Dynamic partitioning Partitio
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Number of virtual processors In gen
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The benefit of SMT is greatest wher
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Setting SMT mode using SMIT Use the
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The Hypervisor firmware and the hos
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Partition 2 is configured with one
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Note: The Virtual I/O Server suppor
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Most ISVs consider partitions with
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When a partition is running as unca
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► ► ► Selected IBM software p
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Shared pool = 4 CPU Sum EC = 3.0 PU
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For more information about the use
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Table 2-5 Licensing estimation for
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Maximum virtual processors used Cap
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2.8 Virtual and Shared Ethernet int
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► VLAN 2 - Node A-2 - Node B-3 -
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VLAN support in AIX 5L is based on
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2. Tagged port receives a packet ta
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page 78. EtherChannel and Link Aggr
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Note: In this type of configuration
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Figure 2-18 Shared Ethernet Adapter
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Other aspects that have to be taken
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► Only packets for the VLAN speci
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► Packets tagged with a VLAN othe
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► The value proposition enabling
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Figure 2-21 Virtual SCSI architectu
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Figure 2-23 and Figure 2-24 show th
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4. In the Virtual I/O Server, vios1
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The following are the steps to unco
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► ► A logical volume on the Vir
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I/O configuration, performance is a
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Hardware management is done by an H
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VMC allows IVM to provide basic log
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Virtual TTY In order to allow LPAR
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2.13.1 Linux device drivers for IBM
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Mirroring Linux can mirror disks by
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Figure 2-29 Bridging a virtual and
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116 Advanced <stro
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3.1 Getting started This section pr
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lspath mkpath mkvdev mkvt rmdev rmp
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3.1.2 Hardware resources managed Th
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3.2 Creating a Virtual I/O Server p
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3. Enter the partition name and ID
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5. You have the option to change th
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7. Select the Shared check box for
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9. Specify the processing sharing m
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11.Skip setting the I/O pools, as s
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2. Click the Create adapter button
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5. Add a virtual SCSI adapter to vi
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7. Select Normal for your boot mode
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A few seconds after the status wind
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3. Select the VIO_Server1 profile a
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You are now ready to use the newly
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3. Specify the Maximum virtual adap
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You can use the lsmap -all -net com
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2. Select the check box AIX or Linu
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2. Click Create client adapter. The
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4. Click Create server adapter and
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6. When the operation is complete,
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9. When you have completed adding v
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Server SCSI adapters have been adde
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Using logical partitions In our bas
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Note: Based on the lsdev -vpd comma
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It is useful to be able to map the
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Assuming that a NIM master is confi
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3. Set up the NIM master IP address
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3.4.6 Mirroring the Virtual I/O Ser
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Once the interaction between virtua
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Figure 3-45 shows the steps to crea
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Ethernet server adapter and a physi
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4.1 Providing higher serviceability
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Figure 4-1 MPIO and LV Mirroring wi
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Some advanced topics with respect t
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While EC is an Cisco-specific imple
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Alternatives for network high avail
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Figure 4-6 IP multipathing in the c
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SEA Failover works as follows: Two
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Although the alternative configurat
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► With NIB, the two internal netw
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In Figure 4-11 on page 201, a clien
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When Virtual I/O Server 2 returns t
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few cycles to set up, but none for
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4.1.7 Considerations The following
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. On step 10, allocate an unused Et
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7. Check the devices list on your V
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Figure 4-17 shows the intended solu
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. Click the Create Adapter button,
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Tip: Mismatching SEA and SEA Failov
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Checking which SEA is active Checki
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In this scenario, we attach each Vi
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2. Configure the SEA, as described
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5. Check for the vhost adapter usin
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8. Check again, using the lsdev com
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Check the mappings, as shown in Exa
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2. Check the MPIO configuration by
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To determine which path will use th
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7. On the first LPAR, create an enh
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A switch can be forced with the /us
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The configurations described in thi
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We recommend using mirroring, strip
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Supported multi-path configurations
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Supported scenarios using one Virtu
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Supported scenarios using multiple
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4.7.2 Supported Ethernet configurat
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In order to help clients improve th
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Clients can find the fixes and file
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Figure 4-35 shows the basic conside
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256 Advanced <stro
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5.1 Dynamic LPAR operations This se
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5. Figure 5-3 shows you the Virtual
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another partition. Use the lsslot -
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2. Select the adapter to be moved a
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5.1.3 Add memory dynamically in AIX
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5.1.4 Removing memory dynamically T
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The following command shows the eff
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2. Figure 5-17 shows the current pr
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et1 Defined 01-09 IEEE 802.3 Ethern
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1. Use the diagmenu command to unco
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5. Locate the blinking adapter, rep
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► Figure 5-19 shows you the topol
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Example 5-4 shows how to back up th
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Example 5-6 Creating a Virtual I/O
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5.2.5 Restoring the Virtual I/O Ser
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For an AIX 5L NIM server recovery,
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To view the System Plan, Select Sys
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In Example 5-11, we look to the map
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The last information we need is the
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Page 330 and 331: hd3 jfs2 1 2 2 open/syncd /tmp hd1
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Page 348 and 349: Traditional performance measurement
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Page 352 and 353: This is shown in Example 5-22 and E
Page 354 and 355: 5.5.4 The topas command The topas c
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Page 358 and 359: Tip: The output of topas -cecdisp w
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Page 366 and 367: Note: The variable capacity weight
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Page 374 and 375: 5.5.7 Monitoring with PLM The Parti
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Page 378 and 379: Using the r and p switches after st
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Page 398 and 399: 6.1 Partition Load Manager introduc
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Page 416 and 417: Define a PLM policy as follows: 1.
Page 418 and 419: Table 6-2 CPU-related tunables CPU
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1. Start the Web-based System Manag
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4. Complete the information in the
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. Fill out the values for the tunab
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8. Specify the CPU resource policy
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Clicking the OK button will create
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. From the Web-based System Manager
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2. Click the Groups tab, and then t
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Figure 6-21 Edit Policy File partit
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The policy_file and log_file parame
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In its short form, the xlplm -Q com
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6.3 Point-in-time and recurring rec
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Select the type of operation you wi
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6.4 Tips and troubleshooting PLM Th
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Note: Exchanging keys is an importa
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The Identity entry is either based
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120200c10d3ad7a20951523b7c01bd31f42
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► ► PLM does not directly state
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6.6 Resource management Owners of I
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Characteristics of WLM, PLM, and sh
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Evaluating CPU utilization Traditio
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Shared-processor partitions support
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438 Advanced <stro
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FDX FLOP FRU FTP GDPS GID GPFS GUI
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442 Advanced <stro
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Other publications These publicatio
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► ► ► ► Virtual I/O Server
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cfgdev command 163, 203, 264 cfgmgr
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excess weight, PLM 376 extendlv com
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Micro-Partitioning 3, 32-33 49 capp
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processor dispatch 43, 50 processor
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VIO 59 virtual processor 61 mainten
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target 90, 92 virtual SCSI Server a
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Back cover Advanced</strong
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