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Cisco Bug: CSCum92718 - Make ISSU resilient to filesystem corruption

Last Modified

Mar 06, 2018

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases

5.2(8b) 6.2(5)

Description (partial)

In certain extremely rare cases, gen4 linecard (DS-X9232-256K9 or DS-X9248-256K9) can reload during software upgrade.

After the reload, you can check if it occurred due to this particular issue by issuing the commands <I>show module internal exceptionlog</I>, and <I>show system internal log sysmgr rtdbctrl</I> (the last one after attaching to the linecard in question). Signature output for this bug is shown below.

`show module internal exceptionlog`

 ********* Exception info for module 6 ********

exception information --- exception instance 1 ----
Module Slot Number: 6
Device Id         : 134
Device Name       : System Manager
Device Errorcode  : 0x00000003
Device ID         : 00 (0x00)
Device Instance   : 00 (0x00)
Dev Type (HW/SW)  : 00 (0x00)
ErrNum (devInfo)  : 03 (0x03)
System Errorcode  : 0x401e0064 failed to restore runtime db
Error Type        : FATAL error
PhyPortLayer      : 0x0
Port(s) Affected  : none
Error Description : ha_policy_apply: Restore of runtime database for linecard failed
DSAP              : 0 (0x0)
UUID              : 1 (0x1)
Time              : Sun Jan 19 17:13:57 2014
                    (Ticks: 52DBF9C5 jiffies) 

# attach module 6
module-6# sh system internal log sysmgr rtdbctrl

No system manager runtime database log present
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