Discussions specific to tape backups
joergr
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Unable to use Library - "false positive"

Post by joergr » Mar 15, 2018 7:54 am

Hi,

I have a let´s say cosmetical discussion / question going on in my team. We often use physical VEEAM machines with four physical streamers directly attached to it (no changer). So all of these four streamers have a free tape inside and are placed all in one Media Pool with multiple Libraries. The Backup to tape job is configured with this multi-library-media-pool as target and all works as expected: streamer a writes the tape full, then streamer b is automatically selected and the session continues and so on. Only cosmetic problem: Everytime a tape is full and the next streamer is automatically selected, veeam throws a "Unable to use library - Library Streamer xy has no free media" via Mail. As it is all good we really don´t want that warning message.

Any ideas?

Thanks

Joerg

Dima P.
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Re: Unable to use Library - "false positive"

Post by Dima P. » Mar 15, 2018 12:53 pm

Hello Joerg.

I was under impression that you should get a warning message in the tape job session and warning email notification afterwards. Are you saying that you get a failed job email notification whenever job fails over to another tape device?

joergr
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Re: Unable to use Library - "false positive"

Post by joergr » Mar 15, 2018 6:33 pm

Hi,

no warning at all in the log / history. The job log shows completely green and the log just says with green marks "library has no free media" followed by a green "required ressources found". So all is OK. The mail we get is no warning either, it just says subject "unable to use library" and text "Library Streamer-bla cannot be used for backup. Details: Library Streamer-bla has no free media".

This mail makes no sense at all and we do not know how to stop it without disabling all mail warnings.

Thanks

Joerg

Dima P.
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Re: Unable to use Library - "false positive"

Post by Dima P. » Mar 16, 2018 10:06 am 1 person likes this post

Thanks for the details! It sounds strange, let me discuss this behavior with QA team.

joergr
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Re: Unable to use Library - "false positive"

Post by joergr » Mar 16, 2018 11:46 am

Yep, that would be great ;-) Thanks Dima.

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Re: Unable to use Library - "false positive"

Post by AlexB82 » May 01, 2018 2:11 pm

Hi,
I'd like to report the same issue, only it happens with our 4 IBM tape libraries (4 drives and 45 tape slots per library). What makes matters worse is that we have Veeam automatically logging service desk trouble tickets with each one - last weekend I had to close around 40+ tickets all with the same text. No jobs actually failed, so it's highly frustrating. The message sent is:

Library IBM 3573-TL D.60 (*libraryname*) cannot be used for backup. Details: All drives are busy in IBM 3573-TL D.60 (*libraryname*)

If it could be disabled so that only actual failures are emailed, it'd be much appreciated.

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Re: Unable to use Library - "false positive"

Post by Dima P. » May 02, 2018 10:46 am 1 person likes this post

Hi AlexB82,

QA team has concluded that this behavior should be investigated by our support team as log analysts is required. Please submit a support case and share the case Id in this thread. Thank you in advance!

AlexB82
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Re: Unable to use Library - "false positive"

Post by AlexB82 » May 16, 2018 12:20 pm

Joerg - I logged a case with Veeam for this, and I've been advised by support to add the "DisableEjectWarning" registry entry on the tape servers. Not sure if it'll help, but we'll see when the next tape run happens.

It's meant to suppress the "unable to eject some tapes" warning, but they've advised it might work for this error too.

joergr
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Re: Unable to use Library - "false positive"

Post by joergr » May 16, 2018 7:58 pm

Hi, nice, thanks, just set

Path: HKEY_LOCAL_MACHINE\SOFTWARE\Veeam\Veeam Backup and Replication
Value: DisableEjectWarning
Type: DWORD
Value : 1

let's see how this works out ;-)

Thanks

Joerg

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Re: Unable to use Library - "false positive"

Post by AlexB82 » May 17, 2018 10:41 am

I was told to put it in HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Veeam\Veeam Backup Tape - might want to include that location too?

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Re: Unable to use Library - "false positive"

Post by joergr » May 17, 2018 10:59 am

Thanks!

OK, done. Let´s wait and see. Does it need a service restart or is it effective immediately?

Thanks

Joerg

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Re: Unable to use Library - "false positive"

Post by AlexB82 » May 17, 2018 11:43 am

They didn't mention anything about restarting services.

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Re: Unable to use Library - "false positive"

Post by lyapkost » May 21, 2018 11:57 am

Hi. DisableEjectWarning key won't do anything in the mentioned case. The described event is failover so the warning message is expected there.

joergr
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Re: Unable to use Library - "false positive"

Post by joergr » May 23, 2018 6:34 am

Correct. I tried it, both keys and Reboot - unfortunately, same message coming via mail after each backup.

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Re: Unable to use Library - "false positive"

Post by AlexB82 » Jun 01, 2018 9:52 am

We had mixed results. It's reduced the number of emails quite a lot, but we still got some. I think it's because we had almost all our monthly tape jobs kicking off at the same time (which on 9.5 Update 2 caused no problems, the jobs would happily wait for resources). Since 9.5 Update 3 was installed, it seems more likely to complain about the drives being in use and just failing the job. I've spaced our jobs out over the course of a few hours to help, but it's still not perfect.

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