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siranee.ja
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case no. 03448095. Veeam tape selection not alpha numeric ordering in u4

Post by siranee.ja » Mar 11, 2019 3:35 am

hello everyone,

I already open the case no. 03448095.

I have problem with the tape selection logic on u4.
It's not Alpha-numerically according to their actual barcode.

I'm using u4 right now and have problem with the tape selection.
I test with tape label as the below orderly and create one tape backup job with the following media pool.
media pool full
A00001L6 --> Thursday full backup
media pool incremental
A00011L6 --> Friday inc backup
B00001L6 --> Saturday inc backup
B00011L6 --> Sunday inc backup
C00001L6 --> Monday inc backup
C00011L6 --> Tuesday inc backup
D00001L6 --> Wednesday inc backup

I expected to have tape write down orderly as the alpha-numeric order but it didn't.
Last message from veeam support told me that "u4 has new logic to pick up tape.
The total write count on the tapes.So Veeam now track and prefer the "youngest" tape (least writes)"

Support from veeam told me that "u4 has new logic to pick up tape.
The total write count on the tapes.
So Veeam now track and prefer the "youngest" tape (least writes)"

https://helpcenter.veeam.com/docs/backu ... l?ver=95u4

I see in the url screen it show the read and write count but in my system it always
show read and write count to 0. how can I know the youngest tape? Are there any
other way to check the read and write count other than see on the tape properties ?

Actually the propose of the known tape to write because of we have operator to take
the tape offsite daily. If we have long weekend, we are not insert tape one by one
daily. We have tape library loader then we insert all tape in the library. If we do
not exactly know which tape veeam will write down, operator will pick the tape mix
up and it will have mistake.

Best Regards,
Siranee Jaraswachirakul.

Dima P.
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Re: case no. 03448095. Veeam tape selection not alpha numeric ordering in u4

Post by Dima P. » Mar 11, 2019 7:23 pm

Hello Siranee.

Thank you for your post.
how can I know the youngest tape? Are there anyother way to check the read and write count other than see on the tape properties ?
Is it possible to check the tape life cycle via native vendors tools (maybe via library UI)? Can you please name your tape media vendor? Thank you!

siranee.ja
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Re: case no. 03448095. Veeam tape selection not alpha numeric ordering in u4

Post by siranee.ja » Mar 12, 2019 1:11 am

Hi Dima,
The Autoloader is "neo loader"
The Drive is "IBM ULTRIUM HH6"
The media is "LTO-6 ULTRIUM" IBM and HPE

Best Regards,
Siranee Jaraswachirakul.

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