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Chapter 14. Monitoring and tuning z/VM and Linux 243
Determining storage or memory
To see how much central and expanded storage (memory) is installed and allocated to a
system, use the QUERY STORAGE and QUERY XSTOR commands. For example:
==> q stor
STORAGE = 16G CONFIGURED = 16G INC = 256M STANDBY = 0 RESERVED = 0
==> q xstor
XSTORE= 2048M online= 2048M
XSTORE= 2048M userid= SYSTEM usage= 0% retained= 0M pending= 0M
XSTORE MDC min=0M, max=0M, usage=0%
XSTORE= 2048M userid= (none) max. attach= 2048M
Determining processors
To see how many processors (CPs, IFLs, and CPUs) you have allocated at the system level,
use the QUERY PROCESSORS command. For example:
==> q proc
PROCESSOR 00 MASTER CP
PROCESSOR 01 ALTERNATE CP
PROCESSOR 02 ALTERNATE CP
PROCESSOR 03 ALTERNATE CP
PROCESSOR 04 ALTERNATE CP
PROCESSOR 05 ALTERNATE CP
PROCESSOR 06 ALTERNATE CP
PROCESSOR 07 ALTERNATE CP
PROCESSOR 08 ALTERNATE CP
PROCESSOR 09 ALTERNATE CP
Determining the software level
To determine what level of CP your system is at, use the QUERY CPLEVEL command. For
example:
==> q cplevel
z/VM Version 6 Release 1.0, service level 0901 (64-bit)
Generated at 09/11/09 16:51:48 EDT
IPL at 08/31/10 08:44:19 EDT
Determining system cylinder allocation
The QUERY ALLOC MAP command shows you the system allocation of spool, paging, and
directory space. For example:
==> q alloc map
EXTENT EXTENT % ALLOCATION
VOLID RDEV START END TOTAL IN USE HIGH USED TYPE
------ ---- ---------- ---------- ------ ------ ------ ---- -------------
610RES 6280 1 20 20 1 1 5% DRCT ACTIVE
UV6281 6281 1 3338 600840 75482 75533 12% SPOOL
UV6282 6282 1 3338 600840 0 0 0% PAGE
UP6285 6285 0 3338 601020 0 0 0% PAGE
UP6286 6286 0 3338 601020 16 59 1% PAGE
UP6287 6287 0 3338 601020 0 0 0% PAGE
- 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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