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

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old desc_blocks = 1, new_desc_blocks = 1 Performing an on-line resize of /dev/homevg/homelv to 1200128 (4k) blocks. The filesystem on /dev/homevg/homelv is now 1200128 blocks long. Use the df -h command to show that the file system is now 2.3 GB larger: # df -h /home Filesystem Size Used Avail Use% Mounted on /dev/mapper/homevg-homelv 4.6G 69M 4.3G 2% /home 13.4 Adding SCSI/FCP disks This book has only described ECKD disks, also known as DASD. In addition, z/VM and Linux support SCSI/FCP disks. The Fibre Channel (FC) standard was developed by the National Committee of Information Technology Standards (NCITS). The System z FCP I/O architecture conforms to these standards. System z FCP support enables z/VM and Linux running on System z to access industry-standard SCSI devices. For disk applications, these FCP storage devices utilize Fixed Block (512-byte) sectors rather than Extended Count Key Data (ECKD) format. A new channel-path identifier (CHPID) type has been defined called FCP. The FCP CHPID type is supported on the FICON and FICON Express features of all System z processors. This is only a brief introduction to SCSI/FCP disks and multipathing. For more complete documentation, see the Redbook Fibre Channel Protocol for Linux and z/VM on IBM System z on the Web at: http://www.redbooks.ibm.com/abstracts/sg247266.html?Open In addition, see the Redbook Introducing N_Port Identifier Virtualization for IBM System z9, on the Web at: 13.4.1 Adding a single LUN http://www.redbooks.ibm.com/abstracts/redp4125.html?Open You can determine if your LPAR has these types of disks defined with the z/VM QUERY FCP and QUERY FCP FREE commands. Following is an example from a MAINT 3270 session: ==> q fcp An active FCP was not found. ==> q fcp free FCP 1F20 FREE , FCP 1F21 FREE , FCP 1F50 FREE , FCP 1F51 FREE FCP 3B00 FREE , FCP 3B01 FREE , FCP 3B02 FREE , FCP 3B03 FREE FCP 3B04 FREE , FCP 3B05 FREE , FCP 3B06 FREE , FCP 3B07 FREE FCP 3B08 FREE , FCP 3B09 FREE , FCP 3B0A FREE , FCP 3B0B FREE FCP 3B0C FREE , FCP 3B0D FREE , FCP 3B0E FREE , FCP 3B0F FREE FCP 3B10 FREE , FCP 3B11 FREE , FCP 3B12 FREE , FCP 3B13 FREE FCP 3B14 FREE , FCP 3B15 FREE , FCP 3B16 FREE , FCP 3B17 FREE ... The output shows that LPAR has many FCP devices free, but none of them are in use. Associated with FCP devices are World Wide Port Numbers (WWPNs) and Logical Unit Numbers (LUNs). Often, this information may be available as part of the LPAR definition. However, you may not have this information handy. If you do not have this information, it can be queried on RHEL 6. In the following section an FCP/SCSI disk is attached to LINUX02. 200 The Virtualization Cookbook for RHEL 6
Perform the following steps: ► Start an SSH session as root to LINUX02. ► Verify that the zfcp module is loaded with the following command: # lsmod | grep zfcp zfcp 144433 0 [permanent] scsi_transport_fc 68240 1 zfcp scsi_mod 296490 3 zfcp,scsi_transport_fc,scsi_tgt qdio 61977 3 zfcp,qeth_l3,qeth ► Change directory to /sys/bus/ccw/drivers/ and list the contents: # cd /sys/bus/ccw/drivers # ls -F 3215/ 3270/ dasd-eckd/ dasd-fba/ qeth/ vmur/ Note that there is no directory named zfcp/. ► Go back to the MAINT 3270 session and attach an FCP device to LINUX02 with the ATTACH command: ==> att 3b16 linux02 FCP 3B16 ATTACHED TO LINUX02 3B16 ► Return the the Linux SSH session and list the contents of the directory again. This time you should see a new directory zfcp/: # ls -F 3215/ 3270/ dasd-eckd/ dasd-fba/ qeth/ vmur/ zfcp/ ► Change into that directory and list the contents: # cd zfcp # ls -F 0.0.3b16@ bind module@ uevent unbind ► Note that a symbolic link (identified by the trailing ampersand, @, after the file name in conjunction the the -F flag of ls) to a new directory 0.0.3b16 . Change into that directory and list the contents # ls -F availability cutype driver@ online subsystem@ cmb_enable devtype modalias power/ uevent ► Type the contents of the online file: # cat online 0 A value of 0 shows that the device is offline. ► Echo a 1 into the file and it will be put online (you could also use the chccwdev -e command): # echo 1 > online # cat online 1 ► List the contents of the directory again. You should see that many entries were added after the device was put online. The four entries in bold are the WWPNs available from this FCP device. # ls -F 0x5005076306138411/ cmb_enable host0/ peer_wwnn subsystem@ 0x500507630613c411/ cutype in_recovery peer_wwpn uevent 0x500507630a10016c/ devtype lic_version port_remove 0x500507630a13016c/ driver@ modalias port_rescan availability failed online power/ Chapter 13. Miscellaneous recipes 201
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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 =
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► Go back to the top of the file
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8016384 bytes sent in 00:01 (6.01 M
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LOGON AT 07:41:38 EDT WEDNESDAY 09/
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Figure 7-1 Initial screen of instal
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Figure 7-4 Splash screen and device
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► On the next screen the host nam
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► On the Add Partition screen, cr
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Figure 7-12 Creating a volume group
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# mount 9.60.18.240:/nfs/rhel6/dvd1
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# chkconfig --list | grep 3:on abrt
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► Edit /etc/init/control-alt-dele
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► View your order with the swapon
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MDISK 100 3390 0001 3338 UM63A2 MR
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NFS server directory you just set u
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► A warning screen will appear as
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► Click Create and on the resulti
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dev/dasda1 on / type ext4 (rw) proc
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► Import the RPM GPG key so that
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This allows the cloner to initiate
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DASD 63AA FR63AA , DASD 63AB FR63AB
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There are many ways to clone Linux
Page 162 and 163: 0.0.0100 active dasda 94:0 ECKD 409
Page 164 and 165: Initializing cgroup subsys cpuset I
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Page 176 and 177: # cd /nfs # mkdir ks # cd ks ► Co
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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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Page 238 and 239: list. Normal virtual processors in
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Page 248 and 249: Figure 14-3 Performance Toolkit 327
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Page 252 and 253: A.2 Online resources These Web site
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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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