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How netbackup choose the media server configured in storage unit

Manish_Bhatia
Level 4
Partner

Hi,

 

We are planning to implement Netbackup 7.6 and deploy multiple media servers that will perform backups and replication to a Data Domain storage server.

One storage unit will be created on the Data domain system and presented to the netbackup domain, then a disk pool and a storage unit will be created in netbackup against that data domain storage unit (LSU).

 

Now, I need to understand the algorithm netbackup uses when selecting the media server defined under storage unit. As we preferably want to use this option rather then creating stu groups.

 

Please let me know the how netbackup decides to choose media server defined in stu...i mean in serial oreder they are defined, or it has some other algorithm to decide this.

 

Kind Regards

Manish

1 ACCEPTED SOLUTION

Accepted Solutions

RamNagalla
Moderator
Moderator
Partner    VIP    Certified

hi Manish,

Netbackup choose the media server based on the load,it do select least busy media server always..

See the below note from 7.6 OST guide

http://www.symantec.com/business/support/index?page=content&id=DOC6464

Balance load and performance. NetBackup balances backup jobs and storage
usage among the media servers and disk pools. For each backup job, NetBackup
chooses the least full disk volume and least busy media server.

Depending on the storage implementation, OpenStorage may provide the following

capabilities:
■ Share disks. Multiple heterogeneous media servers can access the same disk
volume concurrently.
■ Balance load and performance. NetBackup balances backup jobs and storage
usage among the media servers and disk pools. For each backup job, NetBackup
chooses the least full disk volume and least busy media server.
■ Use of disk appliance capabilities, which may include optimized off-host
duplication and deduplicated storage capabilities.
■ Fast storage provisioning.
■ Almost unlimited storage.
■ Alternative to off-site vaulting.
■ Simplified disaster recovery. Access your data from anywhere over the Internet.

View solution in original post

1 REPLY 1

RamNagalla
Moderator
Moderator
Partner    VIP    Certified

hi Manish,

Netbackup choose the media server based on the load,it do select least busy media server always..

See the below note from 7.6 OST guide

http://www.symantec.com/business/support/index?page=content&id=DOC6464

Balance load and performance. NetBackup balances backup jobs and storage
usage among the media servers and disk pools. For each backup job, NetBackup
chooses the least full disk volume and least busy media server.

Depending on the storage implementation, OpenStorage may provide the following

capabilities:
■ Share disks. Multiple heterogeneous media servers can access the same disk
volume concurrently.
■ Balance load and performance. NetBackup balances backup jobs and storage
usage among the media servers and disk pools. For each backup job, NetBackup
chooses the least full disk volume and least busy media server.
■ Use of disk appliance capabilities, which may include optimized off-host
duplication and deduplicated storage capabilities.
■ Fast storage provisioning.
■ Almost unlimited storage.
■ Alternative to off-site vaulting.
■ Simplified disaster recovery. Access your data from anywhere over the Internet.