When troubleshooting for Ethernet hardware issues, it might be useful to check the interface’s error statistics, but what do they mean?
To prevent network break-ins, the “-nosuid” option is used in “/etc/vfstab” and the “/etc/auto*” configuration files used for NFS mounting filesystems. In “/var/adm/messages”, (the system log files), the following type of message appears frequently: “Date machinename enterprise: save,uid 0:setuid execution not allowed”
Hosts remotely mount other hosts, often times via routers, bridges with straight NFS mounts or with automount. Sometimes, the process accessing those remote hosts just hangs forever or gets the message: NFS SERVER <servername> NOT RESPONDING ..sometimes followed by NFS SERVER <servername> OK
Installing required packages RHEL 5 has the Kdump packages installed by default. If for any reason they are not installed, you need to install the packages “kexec-tools-.rpm” and “system-config-kdump-.rpm” with the following commands: # rpm -ivh kexec-tools-.rpm system-config-kdump-.rpm or, if your system is registered at...
NFS mounts in /etc/vfstab with the “mount at boot” field set to yes are not mounted at boot time.
A Plex will be shown in RECOVER state if its contents are out-of-date with respect to the volume. This can happen if a disk containing one or more plex’s subdisks has been replaced or reattached. If a Plex is shown as being in this state, it...
The following errors could be seen when a filesystem is full: