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I have a 3580 on an AS/400 and want to monitor tape status, most importantly, is one actually inserted, using SNMP get.

Find a lot of SNMP details on tape libraries, but for a stand alone drive I assume this would have to come from the OS device status.

Any idea of OID(s) that would be helpful?

EDIT:

Does not look like there is a native OID. Are there any examples of OID extensions using SNMP sub-agents I could look at?

EDIT:

Actually, coding a subagent to extend the IOD tree is a programming function, not an admin function, so probably should be asked elsewhere.

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I'm not aware of any OID's to provide the information you are looking for. It may be possible to implement custom OID's.

The only way I know of to even detect if a tape is inserted is to attempt to access it with CHKOBJ DEV(TAP01), for example, and monitoring for an escape message.

Reference

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Yes, my research says the same thing. Extending with a sub-agent would be the only way. I'll expand the question; are there any open source examples of SNMP sub-agents running around out there? –  tlum Aug 27 '13 at 15:22
    
@tlum I know there's a RedBook for that (in fact the one JamesA also linked to :-) I haven't read it in years, but there is a chapter on subagents that might be helpful. –  voretaq7 Aug 27 '13 at 15:33

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