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2. Figure 5-17 shows the current processing units and removing the 0.1 processing unit. Figure 5-17 Dynamic LPAR operation to remove 0.1 processing unit 3. Click OK when done. 5.1.7 Removing or replacing a PCI Hot Plug adapter Removing a PCI Hot Plug adapter is necessary when this adapter has to be replaced. Replacing an adapter could happen when, for example, you exchange 2 Gb Fibre Channel adapters for a 4 Gb Fibre Channel adapter, or other for configuration changes or updates. Hot plugging adapters while Virtual I/O clients are using virtual devices requires, for disks, that MPIO is active and functional on the virtual device. For virtual Ethernet adapters in the Virtual I/O client, redundancy has to be enabled, either through Shared Ethernet Adapter failover enabled in the Virtual I/O Servers or Network Interface Backup configured if continuous network connectivity is required. If there is no redundancy for Ethernet, the replace operation can be done while the Virtual I/O Client is still running, but it will lose network connectivity during replacement. For Virtual I/O Clients that have no redundant paths to their virtual disks and are not mirroring these disks, it is necessary to shut them down for the time used to replace the adapter. 272 <strong>Advanced</strong> <strong>POWER</strong> <strong>Virtualization</strong> on IBM System p5
On the Virtual I/O Server, in both cases there will be child devices connected to the adapter as the adapter would be in use before. Therefore, the child devices will have to be unconfigured as well as the adapter before the adapter can be removed or replaced. Normally there is no need to remove the child devices as, for example, disks and mapped disks, also known as Virtual Target Devices in the case of a Fibre Channel adapter, but they have to be unconfigured (set to the defined state) before the adapter they rely on can be replaced. 5.4.2, “Hot pluggable devices” on page 305 has additional information about hot-pluggable devices. 5.1.8 Replacing an Ethernet adapter on the Virtual I/O Server You can do the replace and remove functions by using the diagmenu command and selecting Task Selection → Hot Plug Task → PCI Hot Plug Manager → Replace/Remove a PCI Hot Plug Adapter. If there are still devices connected to the adapter and a replace or remove operation is performed on that device, there will be an error message in diagmenu: The specified slot contains device(s) that are currently configured. Unconfigure the following device(s) and try again. ent0 These messages mean that devices dependent on this adapter have to be unconfigured first. We will now replace a single physical Ethernet adapter that is part of a Shared Ethernet Adapter. Here are the steps to do it: 1. Use the diagmenu command to unconfigure the Shared Ethernet Adapter and then select Task Selection → Hot Plug Task → PCI Hot Plug Manager → Unconfigure a device. You should get the following output: Unconfigure a Device Device Name ¦ Move cursor to desired item and press Enter. Use arrow keys to scroll. ¦ [MORE...12] ¦ en5 Defined Standard Ethernet Network Interface ¦ ent0 Available 01-08 2-Port 10/100/1000 Base-TX PCI-X Adapte ¦ ent1 Available 01-09 2-Port 10/100/1000 Base-TX PCI-X Adapte ¦ ent2 Available Virtual I/O Ethernet Adapter (l-lan) ¦ ent3 Available Virtual I/O Ethernet Adapter (l-lan) ¦ ent4 Defined Virtual I/O Ethernet Adapter (l-lan) ¦ ent5 Available Shared Ethernet Adapter ¦ et0 Defined 01-08 IEEE 802.3 Ethernet Network Interface ¦ Chapter 5. System management 273
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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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Page 258 and 259: To determine which path will use th
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Page 280 and 281: Figure 4-35 shows the basic conside
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Page 284 and 285: 5.1 Dynamic LPAR operations This se
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Page 292 and 293: 5.1.3 Add memory dynamically in AIX
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Page 302 and 303: 1. Use the diagmenu command to unco
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Page 306 and 307: ► Figure 5-19 shows you the topol
Page 308 and 309: Example 5-4 shows how to back up th
Page 310 and 311: Example 5-6 Creating a Virtual I/O
Page 312 and 313: 5.2.5 Restoring the Virtual I/O Ser
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Page 316 and 317: To view the System Plan, Select Sys
Page 318 and 319: In Example 5-11, we look to the map
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Page 328 and 329: os.txt.spell 5.3.0.10 # Writer's To
Page 330 and 331: hd3 jfs2 1 2 2 open/syncd /tmp hd1
Page 332 and 333: Adding a PCI hot plug adapter The t
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Traditional performance measurement
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CPU statistics in shared-processors
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This is shown in Example 5-22 and E
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5.5.4 The topas command The topas c
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capped, and uncapped. The Mem and t
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Tip: The output of topas -cecdisp w
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These files can now be processed wi
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interval and count parameters. The
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The lparstat command POWER<
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Note: The variable capacity weight
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Column Measured parameter Comments
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The sysstat command The sysstat com
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write: wps avgserv minserv maxserv
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5.5.7 Monitoring with PLM The Parti
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Use the perfwb command to start the
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Using the r and p switches after st
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The nmon process runs in the backgr
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The POWER Hypervis
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5.7 Security considerations for Vir
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The firewall can be switched on and
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Enable mail client (dismaildmndls):
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Network option extendednetstats (ex
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Enable unsecure daemons (disrmtdmns
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Minimum number of chars (mindiffhls
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370 Advanced <stro
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6.1 Partition Load Manager introduc
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Notes: ► The PLM server may resid
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When PLM is notified that a partiti
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6.1.4 Memory management PLM manages
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However, the managed nodes know not
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sh and rcp During its installation,
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2. Create a toc file with the inuto
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. Append the PLM server public key
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You can set up the RMC using a scri
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Define a PLM policy as follows: 1.
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Table 6-2 CPU-related tunables CPU
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Memory tunables Table 6-4 shows the
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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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