rhltm000
|
This rule checks whether there
is enough swap space.
|
Critical, Alert, Caution
|
rhltm001
|
CPU
power is wasted each time a CPU has to wait for a lock to become free. This event
is counted because the kernel uses mutually exclusive locks to synchronize its operation
and to keep multiple CPUs from concurrently accessing critical code and data regions.
|
Critical, Alert, Caution
|
rhltm002
|
NFS remote procedure
call timeouts may be associated with duplicate responses after the call is retransmitted.
These timeouts indicate that the network is okay but the server is responding slowly.
|
Critical, Alert, Caution
|
rhltm003
|
The run queue length
is divided by the number of CPUs because every CPU takes a job off the run queue in
each time slice.
|
Critical, Alert, Caution
|
rhltm004
|
A busy disk or a slow disk reduces system throughput and
increases user response times. This rule identifies the disks that are loaded so that
the load can be rebalanced.
|
Critical, Alert, Caution
|
rhltm005
|
RAM rule based on residency time for an unreferenced page. The virtual
memory system indicates that the system needs more memory when the system scans to
look for idle pages to reclaim for other uses.
|
Critical, Alert, Caution
|
rhltm006
|
This
rule refers to the problem with kernel memory allocation that occurs when login attempts
or network connections fail unexpectedly. There are two possible causes: Either the
kernel has reached the extent of its address space, or the free list does not contain
any pages to allocate. The repeated failures signify a problem that might otherwise
be overlooked.
|
Critical, Alert, Caution
|
rhltm007
|
A global cache of directory path name components exists. This cache is called
the directory name lookup cache (DNLC). If this cache does not exist, directory entries
must be read from disk and be scanned to locate the right file.
|
Critical, Alert, Caution
|