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

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Enable unsecure daemons (disrmtdmnsdls):Enables unsecure daemons rshd, rlogind and tftpd Disable POP3D (pop3ddls):comments the entry for pop3d daemon in /etc/inetd.conf and kills all instances of pop3d. Network option bcastping (bcastpingdls):Set network option bcastping to default value. Disable ruserd in /etc/inetd.conf (rusersddls):comments the entry for rusersd daemon in /etc/inetd.conf and kills all instances of rusersd. Enable FTP (ftpdls):Uncomments the entry for ftpd daemon in /etc/inetd.conf and starts ftpd daemon. Password reset time (histexpiredls):Removes any minimum number of weeks requirements before a password can be reused. Enable CDE (discdedls):Enables CDE. Disable timed daemon (distimedmndls):Stops timed daemon and comments it's entry in /etc/rc.tcpip. Enable cmsd service in /etc/inetd.conf (cmsddls):Uncomments the entry for cmsd service in /etc/inetd.conf and starts cmsd service. Remove dot from path root (rmdotfrmpathrootdls):Remove dot from PATH environment variable from files .profile, .kshrc, .cshrc and .login in root's home directory. Disable mrouted daemon (dismrouteddmndls):Stops mrouted daemon and comments it's entry in /etc/rc.tcpip. Disable krshd daemon (kshelldls):comments the entry for krshd daemon in /etc/inetd.conf and kills all instances of krshd. Disable tftp in /etc/inetd.conf (tftpdls):comments the entry for tftp daemon in /etc/inetd.conf and kills all instances of tftpd. Minimum number of alphabetic chars (minalphadls):Removes the minimum number of alphabetic characters constraint, in a password. Minimum length for password (minlendls):Removes the minimum length constraint on password. Maximum age for password (maxagedls):Removes any minimum number of weeks requirement for a password validity. Enable unsecure commands (disrmtcmdsdls):Enables unsecure commands rlogin, rsh, rcp and tftp. Minimum age for password (minagedls):Removes any minimum number of weeks requirements for a password change. Disable routing daemon (disrtngdmndls):Stops routed daemon and comments it's entry in /etc/rc.tcpip. Disable UDP Echo service in /etc/inetd.conf (udpechodls):comments the entry for UDP Echo service in /etc/inetd.conf and kills all instances of UDP echo. $ 366 <strong>Advanced</strong> <strong>POWER</strong> <strong>Virtualization</strong> on IBM System p5
The level of the settings is appended to the name of the setting that is mentioned in round brackets. For example, the security level of the last line of output, the UDP Echo service, is udpechodls which is UDP Echo default level security. The description what will be applied in the security level is found after the colon. There are four levels of security with viosecure: ► Default level security ( -dls) ► Low level security (-lls) ► Medium level security (-mls) ► High level security (-hls) The appropriate level of security can be applied by the following command and then be viewed (Example 5-53). Example 5-53 Applying high level security with the viosecure command $viosecure -level high -apply viosecuree -nonint -view . . . Minimum age for password (minagehls):Specifies the minimum number of weeks to 1 week, before a password can be changed. Disable routing daemon (disrtngdmnhls):Stops routed daemon and comments it's entry in /etc/rc.tcpip. Disable unsecure commands (disrmtcmdshls):Disables unsecure commands rlogin, rsh, rcp and tftp. Check group definitions (grpckhls):Verifies the correctness of group definitions and fixes the errors. Disable UDP Echo service in /etc/inetd.conf (udpechohls):comments the entry for UDP Echo service in /etc/inetd.conf and kills all instances of UDP echo. Disable mail client (dismaildmnhls):Stops Sendmail daemon and comments it's entry in /etc/rc.tcpip. Disable telnet (telnethls):comments the entry for telnetd daemon in /etc/inetd.conf and kills all instances of telnetd. Disable unsecure daemons (disrmtdmnshls):Disables unsecure daemons rlogind, rshd, and tftpd. Disable UDP chargen service in /etc/inetd.conf (udpchargenhls):comments the entry for UDP Chargen service in /etc/inetd.conf and kills all instances of chargen. Disable sprayd in /etc/inetd.conf (spraydhls):comments the entry for sprayd daemon in /etc/inetd.conf and kills all instances of sprayd. Chapter 5. System management 367
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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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Page 354 and 355: 5.5.4 The topas command The topas c
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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
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Page 384 and 385: 5.7 Security considerations for Vir
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Page 398 and 399: 6.1 Partition Load Manager introduc
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Page 410 and 411: 2. Create a toc file with the inuto
Page 412 and 413: . Append the PLM server public key
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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
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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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