This document discusses performing regular health checks on SUSE Linux Enterprise Server systems. It covers using the Supportconfig tool to check configurations, verify the operating system version and that it is up-to-date, check for third party kernel modules, and monitor performance indicators like memory usage, CPU load, and disk space usage. System logs and trends over time can be analyzed using tools like Sysstat and kSar. Standardizing operations through configuration management and backup solutions like Bacula and Amanda is also discussed.

1. SUSE Linux health check
Rendszeres ellenőrzések
Horváth Gábor Kálmán
konzultáns
gahorvath@novell.com

2. © Novell, Inc. All rights reserved.2
SUSE Linux Enterprise Server
rendszeres ellenőrzése
• Megelőzés
• Hibák észlelése
• Hibaelhárítás támogatása
• Supportconfig használata

3. Konfiguráció ellenőrzése

4. © Novell, Inc. All rights reserved.4
Konfiguráció - Supportconfig

5. © Novell, Inc. All rights reserved.5
Konfiguráció - Supportconfig
• http://www.novell.com/communities/node/2332/
supportconfig-linux
• Supportutils

6. © Novell, Inc. All rights reserved.6
Supportconfig futtatása

7. © Novell, Inc. All rights reserved.7
OS verzió
# SPident -vv
Summary (using 1105 packages)
Product/ServicePack conflict match update (shipped)
SLE-10-x86_64 0 0% 344 31.1% 177 (2754 12.5%)
SLE-10-x86_64-SP1 0 0% 485 43.9% 183 (2938 16.5%)
SLE-10-x86_64-SP2 2 0.1% 809 73.2% 179 (2337 34.6%)
- grep 2.5.1a-20.17.i586 < 2.5.1a-20.17.x86_64
- yudit 2.9.0-0.4.i586 < 2.9.0-0.4.x86_64
Unknown 290 26.2%
Legend for Package Details:
- conflicting package (found < expected)
CONCLUSION: System is NOT up-to-date!
found SLE-10-x86_64-SP1 + "online updates"
expected SLE-10-x86_64-SP2

8. © Novell, Inc. All rights reserved.8
OS verzió
*** Summary (see above or log for details):
Product: SUSE_SLES 11 0 x86_64
Statistics:
Total packages installed: 1180
Packages signed by Novell: 1171
Packages matching installed products: 1171
Packages not created by Novell: 2
Unsupported Novell packages: 0
File modifications: 0
Unsatisfied dependencies: 0
Novell packages depending on 3rd party packages: 0
Updates needed: 0
Files not belonging to a package: ?
Status and recommendations:
With a small number of changes, your system can receive support from Novell.
In order to ensure supportability, please resolve the following item(s):
- One or more repositories need to be updated. SAM was not able to check if
your installed Novell software has the versions required to be supported.
Please update your repositories for example by running 'zypper refresh'.
...

9. © Novell, Inc. All rights reserved.9
Kernel taint státusz
> /sbin/sysctl kernel.tainted
kernel.tainted = 2
> lsmod
> /sbin/modinfo nsslibrary
filename: /lib/modules/2.6.16.60-0.59.1-bigsmp/weak-
updates/nsslibrary.ko
license: GPL v2
description: library
author: Novell, Inc.
srcversion: 7139E90984CE15902DD661D
depends: nsslnxlib
supported: yes
vermagic: 2.6.16.60-0.54.5-bigsmp SMP 586 REGPARM gcc-4.1

10. Teljesítmény mutatók

11. © Novell, Inc. All rights reserved.11
Memória kihasználtság

12. © Novell, Inc. All rights reserved.12
Load average

13. © Novell, Inc. All rights reserved.13
CPU Terhelés

14. © Novell, Inc. All rights reserved.14
CPU Terhelés

15. © Novell, Inc. All rights reserved.15
CPU Terhelés

16. © Novell, Inc. All rights reserved.16
CPU Terhelés

17. © Novell, Inc. All rights reserved.17
Lemezterület

18. © Novell, Inc. All rights reserved.18
Processzek állapota

19. © Novell, Inc. All rights reserved.19
Trend jellegű információk
• Sysstat csomag

20. © Novell, Inc. All rights reserved.20
Trend jellegű információk - kSar

21. Üzemeltetési folyamatok

22. © Novell, Inc. All rights reserved.22
Üzemeltetési folyamatok
• Szabványosítás - egységesítés
• Konfiguráció felügyelet - supportconfig,
verziókövető rendszer
• Mentés
• Bacula
• Amanda
• Hibatűrő rendszerek
• SLES-HA Extension

24. Unpublished Work of Novell, Inc. All Rights Reserved.
This work is an unpublished work and contains confidential, proprietary, and trade secret information of Novell, Inc.
Access to this work is restricted to Novell employees who have a need to know to perform tasks within the scope
of their assignments. No part of this work may be practiced, performed, copied, distributed, revised, modified,
translated, abridged, condensed, expanded, collected, or adapted without the prior written consent of Novell, Inc.
Any use or exploitation of this work without authorization could subject the perpetrator to criminal and civil liability.
General Disclaimer
This document is not to be construed as a promise by any participating company to develop, deliver, or market a
product. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in
making purchasing decisions. Novell, Inc. makes no representations or warranties with respect to the contents
of this document, and specifically disclaims any express or implied warranties of merchantability or fitness for any
particular purpose. The development, release, and timing of features or functionality described for Novell products
remains at the sole discretion of Novell. Further, Novell, Inc. reserves the right to revise this document and to
make changes to its content, at any time, without obligation to notify any person or entity of such revisions or
changes. All Novell marks referenced in this presentation are trademarks or registered trademarks of Novell, Inc.
in the United States and other countries. All third-party trademarks are the property of their respective owners.