Netbackup Storage LifeCylce Policies and DD Pool filling up

[JasonP_76]

Hi all,

Recently we implemented Deduplication (and soon will be replication to another server), using Disk Pools and Storage LifeCycle Policies.

Before we had just Basic Disks for Storage Units for Online backups to disk.

Since moving to SLP we are constantly getting error 129 (Storage unit is full). We never had this issued with a Basic Disk Setup. It just worked as it should and did what the High and Low watermarks are supposed to do. With SLP these watermarks don't work at all. The watermarks are the default of 98% and 80% (high and low respectively).

Why does it not work ? Why does it not perform in the same manner ? Why is it not consistant ?

How do I fix this issue so that the server just expires images (the oldest ones) from the online disk storage when it needs the space to perform newer ones like it did before ?

Thanks

[JasonP_76]

Rleon,

Thanks for that. Makes a little more sense now. Shame it does not manage the capacity the way it used to when it was only in BasicDisk mode.

I have changed the retentions on the all disk based (staging) backups and left the normal ones for the tapes.

Hopefully this will help it out and reclaim disk space.

[RLeon]

Thanks Jaykullar.

JasonP_76, please note that changing an SLP's setting would only affect new backup images. For the existing images created before the change, or the ones that are SLP-incomplete (images that have not been duplicated all the way to the last stage), those would still have the old settings/retentions. For those images - depending on how much space you have left to take in new backups - you may have to manually shorten their retention by using the bpexpdate command. Please refer to the Nbu Commands Reference guide for the options.

Also, having expired an image does not mean that the dedup disk space will immediately be reclaimed. This is done internally and automatically according to a set schedule. You can find out more from the Nbu Dedup guide under Deduplication Queue Processing, and
http://www.symantec.com/docs/TECH124914

SLP scheduling is planned for NetBackup 7.6.