Cisco AJ732A - MDS 9134 Fabric Switch Release Note page 21

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
These release notes are specific to this release. For the complete Release 3.x documentation set, see the
Note
"Related Documentation" section on page
New CompactFlash Test Capabilities
As of Cisco MDS SAN-OS 3.1(3), the ability to detect a faulty CompactFlash is built into the SAN-OS
software. A new CompactFlash cyclic redundancy check (CRC) checksum test can check the state of the
CompactFlash firmware on select modules. If the CompactFlash firmware is not corrupted, then the
SAN-OS software can automatically update the CompactFlash firmware.
By default, the new CompactFlash CRC checksum test is enabled to automatically run in the background
every seven days. New command-line interface (CLI) commands allow you to run the test on demand,
change the automatic test interval, and disable the automatic testing.
The CompactFlash CRC checksum test can check if an affected CompactFlash is corrupted on the
following modules:
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If a CompactFlash is found to be corrupted, then the CRC checksum test is retried five times. If it fails
five consecutive times, then the system initiates a failure action. The type of action depends on the
module where the failure occurred:
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During a software upgrade to Cisco MDS SAN-OS 3.1(3), all modules that are online are tested and the
installation stops if any modules are running with a faulty CompactFlash. When this occurs, the switch
cannot be upgraded until the situation is corrected. A system message displays the module information
and indicates that you must issue the system health cf-crc-check module command to troubleshoot the
problem.
The new CompactFlash CRC checksum test feature is available only through the CLI; it cannot be used
Note
from Cisco Fabric Manager.
The Cisco Fabric Manager CompactFlash Check Utility that was included in previous Fabric Manager
3.1(x) releases, is not included in Cisco MDS SAN-OS Release 3.1(3).
OL-12208-05
DS-X9016
DS-X9032
DS-X9302-14K9
DS-X9308-SMIP
DS-X9304-SMIP
DS-X9530-SF1-K9
On a switching module, the system records a syslog event, logs an exception, and triggers a Call
Home event. The module continues to run.
On the standby supervisor, the system brings down the supervisor.
On the active supervisor, if the hot standby supervisor is available, the system forces a switchover.
On the active supervisor and on a single-supervisor system where there is no standby supervisor, the
system records a syslog event, logs an exception, and triggers a Call Home event. The switch
continues to run.
Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.1(3)
New Features in Cisco MDS SAN-OS Release 3.1(3)
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