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Disk Stating and Data lifecycle policy

Created: 14 Jan 2013 | 2 comments

Hi All,

I am very new in Nebackup. I am very much confused with disk staging vs storage lifecycle.

However i understood the Disk staging concept but didnot get storage lifecycle concept as per the admin guide.

A storage lifecycle operation consists of three steps:

1 A backup is written to all destinations in the lifecycle. 
2 NetBackup automatically copies the image to all duplication destinations in the lifecycle. 
3 The retention type that is selected for the destinations determines how long the backup resides on the destination.
 
Can anyone elaborate the main functioning, advantagaes and disadvantages of storage lifecycle over disk staging? Pls dont paste from netbackup admin guide
as I have been trying to grasp the concept from book but to no vain. 
 
 
Thanks very much.
 
 

Comments 2 CommentsJump to latest comment

RamNagalla's picture
Major difference
 
you can not use the basic disk for SLP.but the Disk staging can be used for the Baisc disk.
 
your 3 points are correct with small correction in First point
 
1 A backup is written to all backup destinations in the lifecycle. 
2 NetBackup automatically copies the image to all duplication destinations in the lifecycle. 
3 The retention type that is selected for the destinations determines how long the backup resides on the destination.
 
I understand that you have read the admin guide,
 
read the below the white Paper and the best practice to get more understaing..
http://eval.symantec.com/mktginfo/enterprise/white_papers/b-whitepaper_nbu_disk_based_data_protection_options_4_2008.pdf
 
http://www.symantec.com/business/support/index?page=content&id=HOWTO73205
Marianne's picture

No response whatsoever to Nagalla's excellent post?

This topic is often discussed in this forum - you may want to do a search before posting.

https://www-secure.symantec.com/connect/forums/storage-life-cycle-policies 

There are also a number of Vault vs SLP discussions where the advantages of SLPs are explained.

Main differences:

SLP can have different retentions for each backup or duplication destination.

SLP guarantees duplications in the sense that the backup will be set to infinity retention until the duplication has succeeded. It will also keep on trying until successful.

DSSU can be scheduled, SLP cannot. It will automatically kick in soon after the backup.

As Nagalla pointed out - only advanced disk can be used - no basic disk.

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