Interface Card Critical Resource Analysis(CRA) Whitepaper for HP-UX 11i v3

Explanation and user action required:
The above operation with the rmsf option will fail with a CRA_DATA_CRITICAL error.
Before performing the above operation, it is recommended to make the user applications use the path
independent device special file.
File System Configuration Scenarios
Scenario 15
System Configuration:
A File system is mounted on a disk and the disk has a single lunpath through a
card.
Operation Performed:
# olrad –C | -r | -d <slot id>
Or
# scsimgr disable –H <lunpath>
Criticality reported by CRA:
CRA_DATA_CRITICAL
Explanation and user action required:
The olrad(1M) command with –C option reports the resource usage and its criticality.
The above operations with scsimgr and olrad(1M) with –r or –d options will fail with a
CRA_DATA_CRITICAL error. Overriding the error and proceeding with the operation will make the
lunpath unavailable and this will make the file system, residing on the disk, inaccessible.
If any of these operations must be performed for system administration purposes, an alternative path
must be configured using the same or a different card (in case of the scsimgr operation) or through an
alternative healthy card (in case of the olrad operation) before performing the above operations.
Scenario 16
System Configuration:
A File system is mounted on a disk and the disk has one or more lunpath(s),
which originate from different ports of the same card (for example, AB379B dual-ported 4GB FC
card).
Operation Performed:
# olrad –C | -r | -d <slot id>
Criticality reported by CRA:
CRA_DATA_CRITICAL
Explanation and user action required:
The olrad(1M) command with –C option reports the resource usage and its criticality.
Though there are multiple lunpaths to the disk, the above operations with olrad(1M) with –r or –d
options will fail with a CRA_DATA_CRITICAL error. Overriding the error and proceeding with the
operation will make the lunpaths unavailable as all the paths are through the same card and this will
render the file system residing on the disk inaccessible.
If any of these operations must be performed for system administration purposes, an alternative path
must be configured using an alternative healthy card before performing the above operations.
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