lin_tape tape drivers missing?

KBEE

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PREDATAR Control23

Hello.

TSM = v 6.3.4.2
DD = DD990
OS = Linux Red Hat

Problem = my drives and paths went polling/offline.

I noticed that I'm missing about half my drivers from the following location -
/dev/lin_tape/by-id

I have a couple TSM servers running the same setup, went missing on 2. On one server I was able to upd the drives and paths to online and they've been good and the missing tape drivers came back.

On the other server they stayed missing and the drives and paths obviously won't stay online. We tried doing a hard reboot and TSM recycle today with no luck.

How can I get these back? Any ideas on what could cause this type of an issue?

Thanks.
 
PREDATAR Control23

Hi ,
Assuming that u have vtl configured In ur environment , and assuming that you have verified everything from emc dd looks fine ,
Here are the possibilities to my knowledge
Need to verify zoning is still in tact , need to verify if there is a problem at the persistent drive mapping of devices at the os level ,..
 
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