NetBackup 7.5 Lotus Domino Backup

[punbs]

Hi Folks,

I need suggestion for the better backup solution for lotus domino backup with NetBackup 7.5

A quick Infra details.

One Master Server. 25 Lotus Domino Servers with each 2.5K User Mail Box. All Lotus Domino Servers are VM Media Servers active only for Disk.

Now problem is Sunday will be full backup. and Mon to Fri Incremental Backup. Since the Domino Incremental backup will refer the Domino dbid changes for incremental backup. So dbid disabled because of performance issue. dbid will change only once a week with compaction.

So Incremental backup for mail box will complete with 0KB and transaction log backup will happen. Even though i can recover mail box with point in time recovery with the help of last full backup and transaction log backup. But Recovery time objective for the once week restoration will take 10 time more than the backup window time..

So how to minimize the RTO..? Or how to achieve the Incremental backup in the above situation...  

[punbs]

Hi,,

Any NetBackup Domino experts inputs for this.. 

[Marianne · Accepted solution]

See this TN: http://www.symantec.com/docs/TECH86637

Configuring fast restores in the NetBackup for Lotus Notes database agent

 

Problem

When restoring a logged Lotus Notes database in NetBackup, the transaction log recovery can take a very long time because Domino Server requests the log extents only one at a time during the recovery.

Solution

During Lotus Notes restores, the NetBackup for Lotus Notes agent automatically restores any recycled transaction logs that are required for recovery. Typically one transaction log is restored at a time and recovery is completed for the transactions in that log. Because the restore of the log and application of transactions is a sequential process, the restore and recovery performance is slow. 

Beginning with version 6.5, NetBackup prefetches the required transaction logs before recovery. Then multiple transaction logs can be restored at a time and made available for recovery. 

For faster recovery of the databases, two settings need to be configured: 
 

• The transaction log cache path, where NetBackup temporarily stores the prefetched transaction logs.
• The maximum number of logs to restore, which determines how many transaction logs are restored in a single restore job during recovery.

....

(See TN for details...)