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Expiring a backupid but the media remains full

Created: 18 Jun 2013 • Updated: 19 Jun 2013 | 6 comments
This issue has been solved. See solution.

Is a question

When i expired a backupid froam a mediaid that contains another backups, the mediaid remains full until all the backups in this media has expired?

I deleted a very long images to free up space but i do not get nothing

Operating Systems:

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huanglao2002's picture

if you sure all the data on the media is unvalid,you can try

 bpexpdate -m "media id" -d 0

and answer "y"

Maialen Zufiaurre's picture

No, i'm sure the data is valid, only i deleted only one image but very large, i don't want to do this

mph999's picture

You cannot free up any spance on a media (tape)  until all the backup s expire.

This is the same for any backup software.

If the media contains :

Image1

Image2

Image3

Image4

Image5

Image6

Because tapes are sequential media even if you expire Image4 , it is impossible to free up that space as you would never be able to rewrite a file to fit into the 'gap' on the tape, it just cannot be done.

Hence, a tape can only be 'reused' when all the backups have expired.

Martin

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
Genericus's picture

Your only option if you want to consolidate space is to copy the valid images to another tape, and expire the old images - since you free up the tape only when all images are expired.

NetBackup 7.5.0.3 on Solaris 10
EMC Data Domain 990 VTL via FC
acsls 8.3.0
SL8500 LTO5

SOLUTION
Marianne's picture

In addition to above excellent posts, see this blog: 

https://www-secure.symantec.com/connect/blogs/understanding-how-netbackup-writes-tape

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

ontherocks's picture

When all images are deleted or expired, then only the tape is free for further Backups.
 

OTR