This article provides an overview of the
rpm and yum commands for installing software packages on Linux. - rpm
- yum Repositories
- yum
- GUI
- Kernel Updates
Installing Linux Software Packages From Local Media or Public Repository Using Yum
How to fix clstat and cldump related problems
A common problem with clstat and cldump
commands is often observed especially when a new PowerHA (HACMP)
cluster is configured on a freshly installed AIX. Most of the issues
with clstat and cldump are related to snmp protocol and can be solved
with simple correction of the snmp configuration file.
Follow the procedure below if clstat and cldump are not working:
Follow the procedure below if clstat and cldump are not working:
DLPAR or Dynamic Logical Partitioning problems
DLPAR provides users the ability to dynamically add, remove or modify LPAR resources such as memory, CPU, or I/O devices. The most common problem with DLPAR operations is related to RMC
(Resource Monitoring and Control).
Since DLPAR function relies on RMC connection between HMC and LPARs, you should ensure that the public network interface of your HMC is properly configured and HMC can reach your LPARs via network (HMC connection to FSP (Flexisible Service Processor) of managed systems is not enough). If any firewalls between HMC and LPARs exist, check that port 657 upd/tcp is open in both directions. Ensure that RMC connection is allowed for the public interface of HMC as well:
HMC Management --> Change Network Settings --> LAN adapters (choose the public one) --> Firewall settings
To start troubleshooting any problem with Dynamic Logical Partitioning, go to HMC restricted shell and check the output of the command:
Since DLPAR function relies on RMC connection between HMC and LPARs, you should ensure that the public network interface of your HMC is properly configured and HMC can reach your LPARs via network (HMC connection to FSP (Flexisible Service Processor) of managed systems is not enough). If any firewalls between HMC and LPARs exist, check that port 657 upd/tcp is open in both directions. Ensure that RMC connection is allowed for the public interface of HMC as well:
HMC Management --> Change Network Settings --> LAN adapters (choose the public one) --> Firewall settings
To start troubleshooting any problem with Dynamic Logical Partitioning, go to HMC restricted shell and check the output of the command:
How to replace failed disk in VIOS
This article describes two common scenarios for replacing failing local disk in VIOS. In this scenario the failing disk contains LVs used for rootvg of VIO
clients. The rootvg is mirrored to another disk presented by a second
VIO server. This scenario is illustrated below:
