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206 The Virtualization Cookbook for Red Hat Enterprise Linux 5.2
and Red Hat RHEL 4 and RHEL 5 have been enabled for the kernel to gather performance
data. There is a package called the Linux RMF™ PM Data Gatherer (also called rmfpms) that
runs as a user application. Both of these data gatherers work in conjunction with the IBM
z/VM Performance Toolkit.
14.3.1 Monitoring Linux with rmfpms
As a user application, the Linux RMF PM Data Gatherer (rmfpms) can be used. Currently it is
not part of an IBM product and is intended for evaluation purposes only. A description of
rmfpms is as follows:
rmfpms is a modular data gatherer for Linux. The gathered data can be analyzed using the
RMF PM client application. The performance data is accessible through XML over HTTP
so you can easily exploit it in your own applications.
The following Web site is a starting point:
http://www-03.ibm.com/servers/eserver/zseries/zos/rmf/rmfhtmls/pmweb/pmlin.html
To download the data gatherer, scroll down and look for the following text and links:
* 31 bit data gatherer (kernel24 - 630 KB, kernel26 - 1040 KB).
* 64 bit data gatherer (kernel24 - 650 KB, kernel26 - 666 KB).
You can download the appropriate gatherer using a browser, or if you have access to the
Internet, you can use an FTP client. You will want one of two files, depending on whether you
have a 31-bit or 64-bit kernel:
rmfpms_s390_kernel26.tgz - for 31-bit distributions
rmfpms_s390x_kernel26.tgz - for 64-bit distributions
If you cannot access Internet directly from your Linux image, download the tar file to your
workstation and copy it to Linux. Following is an example of downloading the tar file for 64-bit
distributions directly from the Internet. Get an SSH session on the controller or any other
virtual server.
1. Change directory to /usr/local/src/:
# cd /usr/local/src
2. Download the appropriate tar file with the wget command. For a 64-bit SLES 9 and for
SLES 10, use:
# wget ftp://ftp.software.ibm.com/eserver/zseries/zos/rmf/rmfpms_s390x_kernel26.tgz
--17:26:26--
ftp://ftp.software.ibm.com/eserver/zseries/zos/rmf/rmfpms_s390x_kernel26.tgz
=> `rmfpms_s390x_kernel26.tgz'
Resolving ftp.software.ibm.com... 9.17.252.40
Connecting to ftp.software.ibm.com[9.17.252.40]:21... connected.
Logging in as anonymous ... Logged in!
...
100%[====================================>] 1,097,125 538.93K/s
17:26:32 (537.12 KB/s) - `rmfpms_s390x_kernel26.tgz' saved [1097125]
3. For RHEL 4 and RHEL 5, use the following wget command:
# wget ftp://ftp.software.ibm.com/eserver/zseries/zos/rmf/rmfpms_s390x_kernel26_rhel4.tgz
4. Untar the file with the tar command and change to the rmfpms/ directory:
# tar xzf rmfpms_s390x_kernel26.tgz
# ls
rmfpms rmfpms_s390x_kernel26.tgz
# cd rmfpms/
- The Virtualization Cookbook 1
- Linux 5.2 3
- October 2008 3
- First Edition (October 2008) 4
- Contents 5
- Contents v 7
- Contents vii 9
- Trademarks 12
- The team that wrote this book 13
- Chapters and appendixes 15
- Conventions 17
- Comments welcome 17
- 1.1 What is virtualization 20
- 1.2 This book’s approach 21
- 1.4 Infrastructure design 22
- Planning 25
- 2.1 Bill of materials 26
- 2.2 z/VM conventions 27
- 2.3 Disk planning 28
- DASD versus SCSI/FCP 29
- 3390-3s versus 3390-9s 29
- Disk storage per Linux image 29
- 2.4 Memory planning 30
- 2.5 Password planning 30
- 2.6 Planning worksheets 31
- 2.7 Blank worksheets 34
- 2.7.2 z/VM DASD worksheet 35
- Configuring a desktop machine 37
- Figure 3-2 Setting logging 39
- Saving sessions 41
- 3.2 Setting up a VNC client 42
- 3.3 3270 emulators 43
- 4.1 Installing z/VM from DVD 46
- ==> instplan 50
- Running INSTDVD 52
- Figure 4-8 Load window 53
- ==> cold drain noautolog 54
- ==> no 54
- ==> disc 54
- 4.2 Configuring TCP/IP 56
- not specified 62
- 4.6 Adding paging volumes 65
- Using the CPFORMAT EXEC 67
- 4.6.4 Testing the changes 71
- 4.8.2 Testing the changes 78
- 4.9.1 VM security products 79
- ==> sampnss cms 86
- Servicing z/VM 89
- 5.1 Applying a PTF 90
- 6.4 Enabling the NFS server 106
- 7.2.3 Configuring VDISK swap 128
- 7.2.4 Configuring yum 128
- 7.2.5 Adding additional RPMs 129
- 7.2.10 Configuring SSH keys 134
- 4 6763) is running 135
- 8.2.4 Adding additional RPMs 145
- 8.2.8 Configuring SSH keys 145
- 8.2.9 Rebooting the system 146
- 8.2.10 Verifying the changes 146
- Detach the source disks 151
- Detach the target disks 154
- IPL the target system 154
- 9.3.2 Using the clone script 157
- FLASHCOPY 159
- Installation Server 159
- Master Image 159
- 9.5 Reviewing system status 163
- LNXMAINT 164
- Delete these 167
- Servicing Linux with Red Hat 171
- 12.1.2 Testing Apache 179
- 12.1.3 Turning on a firewall 179
- 12.1.6 Apache resources 182
- Start the LDAP service 184
- Deleting duplicate users 186
- Set a password 189
- 12.3.4 Adding a Samba user 191
- 12.3.6 Testing your changes 192
- 12.3.7 Configuring printing 193
- 12.4.1 Additional resources 194
- Linux kernel development 195
- Web development 195
- Miscellaneous recipes 197
- 13.1 Adding a logical volume 198
- Volume Group - optvg 200
- Creating a physical volume 204
- Extending the volume group 204
- /var/lib/ldap 205
- Configuring LDAP 206
- Configuring automount 207
- 13.4 Rescuing a Linux system 208
- Monitoring z/VM and Linux 211
- INIDICATE LOAD 212
- INDICATE QUEUES EXP 213
- Getting help 214
- Determining who is logged on 214
- Determining storage or memory 215
- Determining software level 215
- 14.2.3 Configuring PERFSVM 218
- Using a Web browser interface 220
- Using a 3270 interface 222
- 14.3 Monitoring Linux 223
- PURGE NSS NAME MONDCSS 228
- CP SAVESEG MONDCSS 228
- References 229
- Quick reference sheets 230
- Prefix commands 231
- :help give help 232
- Appendix B. z/VM source code 233
- The CPFORMAT EXEC 234
- The CHPW540 XEDIT macro 238
- The LABEL540 EXEC 241
- The LABEL540 XEDIT macro 243
- Linux source code 245
- Related publications 257
- Online resources 258
- How to get Redbooks 258
- Help from IBM 258
- Hat Enterprise Linux 5.2 265
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