Summary
If the operating system is busy processing requests from other applications, it can take a long time to start Backup Express (BEX) modules, causing timeout error 12104.
Symptoms
The logs show the following:
SNBEH_4305W 7868: Register timeout for module ssdmbs (node <NODE NAME> disk <DISK>:). Retrying connect.
cmagent: Started Module(ssdmbs)
cmagent send(1, MODERR ssdmbs 0 12104)
Task manager shows that ssdmbs module is still up after the job ended.
Resolution
DPX cmagent can be instructed to wait for a longer time before timing out via the -t <time in seconds> setting, for example -t 800.
Windows:
Open HKLM\Software\Syncsort\BackupExpress\<Server Name>\0 in the Windows registry and append this setting to the CMAGENT value. If that string value is not there you have to create it with -t setting.
Unix or Linux:
Edit the cmagent startup line in the sscmagent startup script in the Backup Express misc directory.
For example, if the line is:
nohup$SSPRODIR/bin/cmagent -m sssched &
Change it to:
nohup$SSPRODIR/bin/cmagent -m sssched -t 800 &
NetWare:
Create a setting file SYS:\ETC\CMAGENT and put the -t setting on the first line.