This section describes running Linux on an IBM® i5 server.
Many Linux distributions give administrators the ability to configure their systems for automatic system updates. Red Hat provides this ability in the form of a program called up2date, and SUSE provides a program called YaST Online Update. You can configure these features to query for updates that are available for each host and to automatically install any new updates, which can include updates to the kernel.
If your host is attached to the DS6000™ series and is running the IBM Multipath Subsystem Device Driver (SDD), consider turning off this automatic update feature because some drivers that are supplied by IBM, like SDD, are dependent on a specific kernel and cannot function in the presence of a new kernel. Similarly, host bus adapters drivers must be compiled against specific kernels to function optimally. By allowing automatic update of the kernel, you risk an unexpected impact to your host system.