01-13-2017 09:30 AM - edited 01-13-2017 09:34 AM
If I have a backup client:
OS: Windows 2012 R2 NBU: Client v7.7.3
Name: clientA C: System only D: Typical site apps E: DFSR name space "myspace1" F: DFSR name space "myspace2" G: DFSR name space "myspace3" H: DFSR name space "myspace4" V: VSS delta volume
...and I have two servers "clientA" and "clientB", and all four DFSR namespaces are replicating, and I know that "clientA" is DFSR preferred, and "clientB" should be typically passive...
And if I schedule backups of System_State: and C: and D: with no-multi-streaming (i.e. all three areas are in one backup job) of both "clientA" and "clientB" to occur at 19:00, and I schedule the four DFSR backups to run only from "clientB" to occur from 22:00 onwards...
...and assuming that the OS backup (SS: C: D: ) of both nodes is always complete by 20:00
...then... my question is...
How many concurrent backups of DFSR via "clientB" might I be able to run at the same time?
Solved! Go to Solution.
01-15-2017 07:16 PM
It's not possible to run DFSR stream simultaneously.See below technote(section-Methods to resolve the situation:point no. 3)
https://www.veritas.com/support/en_US/article.000018813
Workarounds available:
1) Run offline DFSR backups: Make sure to stop the DFS Replication Service prior to backing up the DFSR data at the volume level
2) Backup the DFSR data as a single item, one stream. Example:
Add NEW_STREAM directive at the top:
NEW_STREAM
Shadow Copy Components:\User Data\Distributed File System Replication\DfsrReplicatedFolders\DFSRM
Shadow Copy Components:\User Data\Distributed File System Replication\DfsrReplicatedFolders\DFSJM
Shadow Copy Components:\User Data\Distributed File System Replication\DfsrReplicatedFolders\DFSRM
With this file list, all 3 data selections will backup in a single stream using a single snapshot, assuming that the folders, (DFSRM, etc.) all exist on the same volume.Hope this help.
-Sajal
01-13-2017 09:31 AM
Forgot to add that...
VSS is configured such that C: uses D:, and D: uses C:...
...and all four of E: F: G: H: are all set to use V:.
01-15-2017 07:16 PM
It's not possible to run DFSR stream simultaneously.See below technote(section-Methods to resolve the situation:point no. 3)
https://www.veritas.com/support/en_US/article.000018813
Workarounds available:
1) Run offline DFSR backups: Make sure to stop the DFS Replication Service prior to backing up the DFSR data at the volume level
2) Backup the DFSR data as a single item, one stream. Example:
Add NEW_STREAM directive at the top:
NEW_STREAM
Shadow Copy Components:\User Data\Distributed File System Replication\DfsrReplicatedFolders\DFSRM
Shadow Copy Components:\User Data\Distributed File System Replication\DfsrReplicatedFolders\DFSJM
Shadow Copy Components:\User Data\Distributed File System Replication\DfsrReplicatedFolders\DFSRM
With this file list, all 3 data selections will backup in a single stream using a single snapshot, assuming that the folders, (DFSRM, etc.) all exist on the same volume.Hope this help.
-Sajal
01-16-2017 12:40 AM
Thank you.
That TN specifically mentions Windows 2008 R2. I have asked via the tech note whether the same still applies for Windows 2012 R2, and Windows 2016.