The Virtualization Cookbook for SLES 10 SP2 - z/VM - IBM

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4 If you specified a value for 3 above (VG_NAME), specify the logical volume name of the root file system. ► Save the file and log off root. ► Log in to LINUX01. ► Answer n to the question Do you want to IPL Linux from minidisk 100? y/n. Verify that the minidisks at addresses 100 and 101 and the VDISK at addresses 300 and 301 are read/write with the QUERY DASD command: ==> q da 00: DASD 0100 3390 UM63A9 R/W 3338 CYL ON DASD 63A9 SUBCHANNEL = 0000 00: DASD 0101 3390 UM63A9 R/W 3338 CYL ON DASD 63A9 SUBCHANNEL = 0001 00: DASD 0190 3390 610RES R/O 107 CYL ON DASD 6280 SUBCHANNEL = 0009 00: DASD 0191 3390 UM6289 R/O 300 CYL ON DASD 6289 SUBCHANNEL = 000C 00: DASD 019D 3390 UV6283 R/O 146 CYL ON DASD 6283 SUBCHANNEL = 000A 00: DASD 019E 3390 UV6283 R/O 250 CYL ON DASD 6283 SUBCHANNEL = 000B 00: DASD 0300 9336 (VDSK) R/W 524288 BLK ON DASD VDSK SUBCHANNEL = 000E 00: DASD 0301 9336 (VDSK) R/W 1048576 BLK ON DASD VDSK SUBCHANNEL = 000F 00: DASD 0592 3390 UV6284 R/O 70 CYL ON DASD 6284 SUBCHANNEL = 000D ► Log off LINUX01. You are now be ready to clone to this new user ID. 9.4.3 Using the clone script To use the clone script, perform the following steps: ► Go back to your an SSH session to the controller. ► Verify that the clone script is in your PATH with the which command: # which clone /usr/sbin/clone ► The clone script can operate in two modes. The first where the DASD information is provided on the command line, and the second where the DASD information is included in the new user ID’s configuration file. Running clone with no arguments prints a usage message as follows: # clone Usage: clone [-v] sourceID targetID [rootMinidisk [minidisk1 minidisk2..]] Switches -v Verbose output Required sourceID the z/VM user id you want to clone from targetID the z/VM user id you want to clone to Optional rootMinidisk the minidisk address that contains the root filesystem minidisk1..n additional minidisks that should be copied The sourceID is the z/VM ID of the master Linux image and targetID is the z/VM ID of the target (LINUX01 in this example). These values are always required. In the following examples, DASD is set to 100-101, which implies that minidisks located at virtual addresses 100 and 101 are copied. The 300 and 301 VDISKs are omitted because SWAPGEN automatically creates them each time the user logs on. The DASD_ROOT value specifies which one of these minidisks contains the Linux root file system (/). The script exits if either the golden image or the clone image is logged in. The script first attempts to copy the disks with FLASHCOPY via the vmcp module or command. If an error is 154 The Virtualization Cookbook for RHEL 6
eturned, the script falls back to using Linux dasdfmt and dd commands. Finally, the script boots the new Linux image via the xautolog command. It takes less than a minute to clone with FLASHCOPY support and 3-20 minutes with dd. The following is an example of cloning from RHEL52 to LINUX01 with FLASHCOPY support. The example uses the verbose switch (-v) to clarify its actions. # clone -v rh6gold linux01 Invoking CP command: QUERY rh6gold Invoking CP command: QUERY linux01 This will copy disks from rh6gold to linux01 Host name will be: gpok224.endicott.ibm.com IP address will be: 9.60.18.224 Do you want to continue? (y/n): y The script makes sure the golden image (source) user ID and the target user ID exist and are logged off. Then, it confirms the order of the cloning and displays information collected from the /etc/clone/linux01.conf file. Following this, it asks if you are sure you want to overwrite the disks on the target user ID. Next, the script links to the master clone minidisk and the target minidisk. The master minidisks are linked to RH6CLONE at virtual address FFFE, and the target minidisks are linked as FFFF. The FFFE links are read-only and the FFFF links are read-write. With the links in place, the script issues a FLASHCOPY command to copy the source 100 and 101 minidisks to the target 100 and 101 minidisks. The script then detaches the links. If FLASHCOPY fails, the script falls back to the Linux dasdfmt and dd commands. Cloning rh6gold to linux01 ... Copying minidisks... Invoking CP command: QUERY VIRTUAL fffe Invoking CP command: LINK rh6gold 100 fffe RR Invoking CP command: QUERY VIRTUAL ffff Invoking CP command: LINK linux01 100 ffff W Invoking CP command: FLASHCOPY fffe 0 END ffff 0 END 100 disk copied ... Invoking CP command: DETACH fffe Invoking CP command: DETACH ffff Invoking CP command: QUERY VIRTUAL fffe Invoking CP command: LINK rh6gold 101 fffe RR Invoking CP command: QUERY VIRTUAL ffff Invoking CP command: LINK linux01 101 ffff W Invoking CP command: FLASHCOPY fffe 0 END ffff 0 END 101 disk copied ... Invoking CP command: DETACH fffe Invoking CP command: DETACH ffff Then, the root file system is mounted to /mnt/clone, and the networking information is modified in /mnt/clone/etc/sysconfig/network/ifcfg-eth0, /mnt/clone/etc/sysconfig/network, and /mnt/clone/etc/hosts: Updating cloned image ... Invoking CP command: QUERY VIRTUAL ffff Invoking CP command: LINK linux01 100 ffff W Modifying networking info under /mnt/clone... Regenerating SSH keys in /mnt/clone/etc/ssh/ ... Invoking CP command: DETACH ffff Invoking CP command: XAUTOLOG linux01 Booting linux01 Successfully cloned rh6gold to linux01 Chapter 9. Configuring RHEL 6 for cloning 155
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z/VM and Linux on IBM System z: The
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4.1.3 Copying a vanilla z/VM system
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8.2.4 Configuring the VNC server .
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14.4 Viewing Linux data in the Perf
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► Chapter 9, “Configuring RHEL
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Sue Baloga, Bill Bitner, Carol Ever
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z/VM 6.1 z/VM 6.1, available in Oct
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► Shared read-only Linux /usr/ fi
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6 The Virtualization Cookbook for R
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- DASD: 27 3390-3s or 9 3390-9s at
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2.2.2 Backup file naming convention
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One rule that can be recommended is
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2.6.2 z/VM DASD used in this book T
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2.7 Blank worksheets Blank copies o
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2.7.3 Linux resources worksheet Use
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Figure 3-1 PuTTY Configuration wind
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9. You may choose a larger screen s
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Click the Download and Use button.
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26 The Virtualization Cookbook for
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4.1 Installing z/VM from DVD or FTP
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Figure 4-2 Choosing two files to be
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► The LPAR that z/VM will be inst
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c. You should see the Disruptive Ta
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► You may need to clear the scree
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Figure 4-11 Load window ► When yo
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==> Press Enter at the VM READ prom
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Figure 4-14 IPWIZARD screen 2 ► A
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One default setting that can be dan
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Pay attention to the output. If you
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==> rename profile tcpip d poksnd61
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You should see that the VSWITCH VSW
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6285-6287 ATTACHED TO MAINT ► Use
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CP_Owned Slot 6 UP6285 CP_Owned Slo
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==> x user direct c ====> bottom ==
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4.7.2 Logging and customizing the n
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4.7.5 Copying files associated with
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4.8.2 Testing the changes To test y
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HCPDIR494I User directory occupies
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==> link * cf1 cf1 mr ==> acc cf1 f
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... ==> link $page$ a03 a03 mr ==>
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When SERVICE is successfully comple
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5.1.2 Downloading the service files
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==> deterse s8873950 shiprsu1 f = s
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***********************************
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APAR Component Description VM64774
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Figure 5-4 Downloading service for
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5.2.3 Verifying the zEnterprise 196
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5.4.1 Getting service using ShopzSe
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Figure 5-7 Getting fixes from Shopz
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► Use the SERVICE ALL command spe
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6.1 Installing Linux on the PC If y
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6.3.3 Copying the DVD contents Copy
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6.5 Configuring an FTP server for z
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6.5.3 Testing the anonymous FTP ser
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==> copy user direct c = direwrks =
Page 116 and 117: ► Go back to the top of the file
Page 118 and 119: 8016384 bytes sent in 00:01 (6.01 M
Page 120 and 121: LOGON AT 07:41:38 EDT WEDNESDAY 09/
Page 122 and 123: Figure 7-1 Initial screen of instal
Page 124 and 125: Figure 7-4 Splash screen and device
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Page 128 and 129: ► On the Add Partition screen, cr
Page 130 and 131: Figure 7-12 Creating a volume group
Page 132 and 133: # mount 9.60.18.240:/nfs/rhel6/dvd1
Page 134 and 135: # chkconfig --list | grep 3:on abrt
Page 136 and 137: ► Edit /etc/init/control-alt-dele
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Page 160 and 161: There are many ways to clone Linux
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Page 168 and 169: Then the SSH keys are regenerated i
Page 170 and 171: USER $ALLOC$ NOLOG MDISK A01 3390 0
Page 172 and 173: ► Verify that the new user IDs ha
Page 176 and 177: # cd /nfs # mkdir ks # cd ks ► Co
Page 178 and 179: RUNKS=1 cmdline ====> file ► Next
Page 182 and 183: 11.1.2 Testing Apache apr-util-ldap
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Page 194 and 195: Figure 11-2 Mapping a network drive
Page 196 and 197: Dependency Installed: apr.s390x 0:1
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# ls access_denied in_recovery stat
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==> #cp vi vmsg 0 1 In single user
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Note: if the rescue image cannot fi
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-/+ buffers/cache: 98 654 Swap: 761
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idle The current idle percentage Th
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200+0 records out 209715200 bytes (
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► Rerun the same scp commands: #
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Figure 13-2 Manual setting of DISPL
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Using embedded SSH It is also possi
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14.1.1 Using the INDICATE command z
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list. Normal virtual processors in
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► The Program Directory for Perfo
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a. Use the VMLINK command to both l
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14.2.4 Increasing the size of the M
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Figure 14-1 Performance Toolkit log
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Figure 14-3 Performance Toolkit 327
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14.4 Viewing Linux data in the Perf
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A.2 Online resources These Web site
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1. Input mode - the Insert key, i,
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B.2 z/VM REXX EXECs and XEDIT macro
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parse upper var dasds dasd dasds da
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eturn retVal /* from formatOne */ /
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'command c/USER 6VMRSC10 6VMRSC10/U
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B.3 Linux code end /* else */ This
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# If there are still command line a
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cp_cmd LINK $source_id $source_mdis
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3) # user ID does not exist echo "$
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[ $? -ne 0 ] && echo "Error: timed
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shift fi # If no command line optio
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