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

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. Append the PLM server public key to the list of HMC public keys: $ cat ~/.ssh/id_rsa.pub >>~/.ssh/hmc_authorized_keys2 $ ls -l .ssh total 5 -rw-r--r-- 1 root system 227 Aug 09 22:16 hmc_authorized_keys2 -rw------- 1 root system 883 Aug 09 21:59 id_rsa -rw-r--r-- 1 root system 227 Aug 09 21:59 id_rsa.pub -rw-r--r-- 1 root system 225 Aug 09 22:07 known_hosts Copy the updated public key list back to the HMC: $ scp .ssh/hmc_authorized_keys2 hscroot@590hmc:.ssh/authorized_keys2 hscroot@590hmc's password: hmc_authorized_keys2 100% 227 0.2KB/s 00:00 c. Complete the key exchange and verify the SSH configuration. The initial SSH exchange between two servers performs the SSH key exchange. Run the ls command remotely on the HMC by entering the following command on the PLM server (you should not be prompted for a password): # ssh hscroot@590hmc ls WebSM.pref websm.script This ssh command should be repeated with the fully qualified name and the IP address of the HMC to have a complete key exchange. This will reduce the likelihood of problems during the PLM and RMC configuration: $ ssh hscroot@590hmc.mydomain.com ls $ ssh hscroot@192.164.10.10 ls d. Obtain the name of the managed system. Use the following command on the PLM server: # ssh hscroot@p5hmc1 lssyscfg -r sys -F name Unless the name of the managed system has been changed on the HMC using the Properties tab on the managed system, the default managed system name is similar to the following: Server-9119-590-SN02Cxxxx 386 <strong>Advanced</strong> <strong>POWER</strong> <strong>Virtualization</strong> on IBM System p5
Tip: The very same procedure can also be used for key exchange with the Virtual I/O Server. This enables automated logins to the Virtual I/O Server, particularly useful for scripting purposes. Since the default SSH installation on the Virtual I/O Server does not allow the padmin user to use ssh itself, which includes the use of scp from or to remote servers, it may prove useful to install links to the ssh and scp commands in a directory in the PATH of the padmin user. To do so, use the following steps: 1. Change to the root shell: $oem_setup_env # 2. Establish links from the installed commands to a directory in the path of the padmin user: # ln -s /usr/bin/ssh /usr/ios/oem/ssh # ln -s /usr/bin/scp /usr/ios/oem/scp 3. Exit the root shell: #exit $ From now on, it is possible to use ssh and scp to copy files to and from the Virtual I/O Server and switch off the telnet and ftp services completely. 6.2.3 Configure RMC for PLM The Partition Load Manager server uses Resource Monitoring and Control (RMC) to communicate with the managed partitions. The RMC ACL setup has two components: ► Host authentication ► User authorization The host authentication involves a public key exchange between the Partition Load Manager server and the managed partitions. This allows the PLM server to connect, or create a session, to the managed system. The user authorization involves adding an entry to the RMC ACL file and grants the root (on the PLM) access to the required resource class. Chapter 6. Partition Load Manager 387
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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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In a mirrored environment, issue th
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Figure 5-23 shows that the virtual
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csm.diagnostics 1.5.0.0 # Cluster S
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os.txt.spell 5.3.0.10 # Writer's To
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hd3 jfs2 1 2 2 open/syncd /tmp hd1
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Adding a PCI hot plug adapter The t
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The following is a list of empty SC
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After the disk is replaced and brou
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2. Get a larger disk from the Virtu
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The updateios command does not comm
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Note: You can use dsh based on rsh,
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2 Checking if Redundancy with dual
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STATUS=`lspath -l $n | grep Failed
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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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Page 366 and 367: Note: The variable capacity weight
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Page 370 and 371: The sysstat command The sysstat com
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Page 374 and 375: 5.5.7 Monitoring with PLM The Parti
Page 376 and 377: Use the perfwb command to start the
Page 378 and 379: Using the r and p switches after st
Page 380 and 381: The nmon process runs in the backgr
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Page 384 and 385: 5.7 Security considerations for Vir
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Page 390 and 391: Network option extendednetstats (ex
Page 392 and 393: Enable unsecure daemons (disrmtdmns
Page 394 and 395: Minimum number of chars (mindiffhls
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Page 398 and 399: 6.1 Partition Load Manager introduc
Page 400 and 401: Notes: ► The PLM server may resid
Page 402 and 403: When PLM is notified that a partiti
Page 404 and 405: 6.1.4 Memory management PLM manages
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Page 408 and 409: sh and rcp During its installation,
Page 410 and 411: 2. Create a toc file with the inuto
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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
Page 420 and 421: Memory tunables Table 6-4 shows the
Page 422 and 423: 1. Start the Web-based System Manag
Page 424 and 425: 4. Complete the information in the
Page 426 and 427: . Fill out the values for the tunab
Page 428 and 429: 8. Specify the CPU resource policy
Page 430 and 431: Clicking the OK button will create
Page 432 and 433: . From the Web-based System Manager
Page 434 and 435: 2. Click the Groups tab, and then t
Page 436 and 437: Figure 6-21 Edit Policy File partit
Page 438 and 439: The policy_file and log_file parame
Page 440 and 441: In its short form, the xlplm -Q com
Page 442 and 443: 6.3 Point-in-time and recurring rec
Page 444 and 445: Select the type of operation you wi
Page 446 and 447: 6.4 Tips and troubleshooting PLM Th
Page 448 and 449: Note: Exchanging keys is an importa
Page 450 and 451: The Identity entry is either based
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Page 454 and 455: ► ► PLM does not directly state
Page 456 and 457: 6.6 Resource management Owners of I
Page 458 and 459: Characteristics of WLM, PLM, and sh
Page 460 and 461: 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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