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RDBPROD: Hot Standby failure with %COSI-F-CANTASSMBX, Error Assigning Channel To Mailbox (Doc ID 1096877.1)

Last updated on DECEMBER 23, 2019

Applies to:

Oracle Rdb Server on OpenVMS - Version 7.2 and later
HP OpenVMS Itanium
HP OpenVMS Alpha


An Rdb Hot Standby fails with the errors:

%COSI-F-CANTASSMBX, error assigning a channel to a mailbox
%SYSTEM-W-NOSUCHDEV, no such device available
%COSI-F-UNEXPERR, unexpected system error

- Replication aborted due to master database notification
Abort reason is "User request"
- Shutdown reason: "Master database request"

The following bugcheck dump details have also been observed (output can be seen using the bugcheck summarizer):

On standby databases snapshot files are not written so there should not be any attempt to read them. The bugcheck was generated as it incorrectly attempted to read them after the failure.


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