Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Pagina 235
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Chapter 13. Miscellaneous tasks 215
10.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/
card_version hardware_version peer_d_id status
11.The lsluns command will show all of the available LUNs from a single WWPN. In the
following example, the first WWPN is used:
# lsluns -p 0x5005076306138411
Scanning for LUNs on adapter 0.0.3b16
at port 0x5005076306138411:
0x4010400000000000
0x4010400100000000
0x4010400200000000
...
12.Bring a LUN online. In this example, the next free LUN is
4014402600000000. Change the
directory to the first WWPN and list the contents:
# cd 0x5005076306138411
# ls
access_denied in_recovery status unit_add
failed power uevent unit_remove
13.The output shows that there is no active LUN under this WWPN. Bring the LUN online by
echoing the value into the unit_add file and list the contents of the directory:
# echo 0x4014402600000000 > unit_add
# ls -F
0x4014402600000000/ failed power/ uevent unit_remove
access_denied in_recovery status unit_add
14.Note that a new directory with the LUN value is created:
# lszfcp -D
0.0.010a/0x500507630503c73d/0x4020400800000000 0:0:0:1074282528
# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 1074282528
Vendor: IBM Model: 2107900 Rev: .310
Type: Direct-Access ANSI SCSI revision: 05
15.Now a /dev/sda directory exists. Check that there are no partitions:
# fdisk -l /dev/sda
Disk /dev/sda: 8589 MB, 8589934592 bytes
64 heads, 32 sectors/track, 8192 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
- Enterprise Linux 6.0 1
- February 2011 3
- First Edition (February 2011) 4
- Contents 5
- Contents v 7
- Contents vii 9
- Trademarks 12
- Chapters and appendixes 13
- Conventions 14
- The team who wrote this book 15
- Special thanks 15
- Comments welcome 16
- Preface xv 17
- Summary of changes 19
- 1.1 What is virtualization 23
- 1.4 Infrastructure design 24
- Planning 27
- 2.1 Bill of materials 28
- 2.2 z/VM conventions 29
- Real address 30
- LPAR identifier 30
- 2.3 Disk planning 31
- 2.4 Memory planning 32
- 2.5 Password planning 32
- 2.6 Planning worksheets 33
- 2.7 Blank worksheets 36
- 2.7.2 z/VM DASD worksheet 37
- Configuring a desktop machine 39
- Figure 3-2 Setting logging 41
- Saving sessions 43
- 3.2 Setting up a VNC client 44
- 3.3 3270 emulators 45
- Figure 4-3 Recovery menu 51
- Running INSTDVD 57
- Figure 4-11 Load window 58
- 4.2 Configuring TCP/IP 61
- 4.6 Adding paging volumes 70
- Using the CPFORMAT EXEC 72
- 4.6.4 Testing the changes 76
- 4.8.2 Testing the changes 83
- 4.9.1 VM security products 84
- clipping the volumes 90
- Servicing z/VM 93
- Chapter 5. Servicing z/VM 75 95
- Chapter 5. Servicing z/VM 77 97
- Chapter 5. Servicing z/VM 79 99
- S9338801 in this example): 100
- Chapter 5. Servicing z/VM 81 101
- Chapter 5. Servicing z/VM 85 105
- Chapter 5. Servicing z/VM 87 107
- 5.4 Applying a PTF 108
- Chapter 5. Servicing z/VM 89 109
- Chapter 5. Servicing z/VM 91 111
- Chapter 5. Servicing z/VM 93 113
- Chapter 5. Servicing z/VM 95 115
- Configuring an NFS/FTP server 117
- 6.4 Enabling the NFS server 120
- 7.1 Installing the cloner 126
- Figure 7-2 NFS setup panel 135
- 7.2 Configuring the cloner 147
- 7.2.8 Configuring SSH keys 153
- 7.2.12 Rebooting the system 155
- 7.2.13 Verifying the changes 155
- Figure 8-4 166
- 8.2.7 Configuring SSH keys 172
- 8.2.10 Rebooting the system 173
- 8.2.11 Verifying the changes 173
- Detaching the source disks 180
- 9.4.3 Using the clone script 185
- 9.6 Reviewing system status 193
- 11.1.2 Testing Apache 202
- 11.1.3 Turning on a firewall 203
- 11.1.6 Apache resources 205
- 11.2.3 Adding an LDAP user 207
- 11.3.4 Adding a Samba user 212
- 11.3.6 Testing your changes 213
- 11.3.7 Configuring printing 215
- 11.4.1 Additional resources 217
- Servicing Linux with Red Hat 219
- Miscellaneous tasks 223
- 13.1 Adding DASD 224
- 13.2 Adding a logical volume 226
- Volume Group - homevg 227
- 13.4 Adding SCSI/FCP disks 233
- 4014402600000000. Change the 235
- 13.5 Rescuing a Linux system 239
- 13.9 The X Window System 251
- Using PuTTY 254
- Using embedded SSH 256
- INIDICATE LOAD 260
- INDICATE QUEUES EXP 261
- Getting help 262
- Determining who is logged on 262
- Determining storage or memory 263
- Determining processors 263
- 14.2.3 Configuring PERFSVM 266
- Using a web browser interface 270
- Using a 3270 interface 272
- 14.3 Monitoring Linux 274
- References 277
- Cheat sheets 278
- A vi cheat sheet 279
- Additional material 281
- Related publications 283
- Online resources 284
- Help from IBM 285
- Hat Enterprise Linux 6.0 293
- Back cover 296
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