Incr running as a full

[NolanE]

Hi All,

I have installed a new LTO4 library on my system replacing an old LTO2 device,

After the installation some of the backups keep on running full backups even thou it suppose to run incr. I ran a full backup of the client and ran the incr again and still it is running full.

I run NBU 6.5 on win 2003 and the client is a file server also with Win 2003

[Andy_Welburn]

Just for one client?

I presume it is a policy that worked previously?

Searching for "incrementals run as fulls" on the KB & filtering down to NetBackup results in at least 12 different TechNotes for this or similar issues - maybe worth a look through see if any are appropriate?

[Yasuhisa_Ishika]

How do you configured about the client properties below?

• Incrementals based on archive bit  or Incrementals based on timestamp
• Time Overlap

Which type of incrementals did you run?

Do the target files have future modification time?

[Marianne]

Stupid question, but this has been the cause of many similar problems -

Do you have Full and Incr schedules as part of the SAME policy?

Can you verify when last a full backup for this particular policy ran?

[Stumpr2]

We relly need more information to help you on this. Can you provide some details?

[mph999]

Hmmm ...

"ran a full backup of the client and ran the incr again"

How much time did you leave between the full finishing and then running the incr ?

Leave it for 15-20 mins and then try running the incr.

Martin

[Nicolai]

Have you TIR enabled and  DFSR folder in the file list path ?

http://www.mass.dk/netbackup/quick-hints/79-netbackup-dfs-r-backup-always-full-with-tir-enabled.html

[NolanE]

Here is how it is.

I have 2 policies for the same client one is a daily (Incr-Diff) the other policy is a weekly (Full).

I ran the first night the weekly policy and the next day a ran the daily and the daily policy and it ran as a full.

there was nothing changed on the policies only a new backup device.

Thanks

[Andy_Welburn]

"...

Stupid question, but this has been the cause of many similar problems -

Do you have Full and Incr schedules as part of the SAME policy?

..."

They need to be in the same policy.

[NolanE]

No, like i said one policy is the daily and another is the weekly 2 policies with the same client.

I have checked the Archive bit settings on the server and the client and all is correct.

it was working before and nothing changed on the policies only a new library.

[Andy_Welburn]

This is the point we are trying to make:

DOCUMENTATION: The cumulative incremental backups consistently run as full backups.
http://www.symantec.com/business/support/index?page=content&id=TECH66214

I also understand what you're saying in that this only happened following installation of a new library - I cannot offer any insight here as I cannot see how this could, in any way, affect how a policy behaves.

[NolanE · Accepted solution]

I got the backups to run as incremental again, i had to delete the schedule from the policy and recreate it and it is running correctly now.

[Andy_Welburn]

Unfortunately that sometimes is the only recourse.

Some "corruption" in the policy can mean that even copying to a new policy will transfer the "corruption" also.

[Daryl_Kinnaird]

The first backup ran for a client in a policy will always be a full backup even if you scheduel is an Incr.  I would bet if you ran the Incr again the following day or a little later it would have worked, with out having to delete and re-add the scheduel.