[SOLARIS] Parameter "concurrentlyAccessedFilesCount" in veeam.ini?

[VAB]

Hello all!


When I look at /etc/veeam/veeam.ini, I see the parameter:

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[restore]
...
# Concurrently accessed files count. Allowed values 1 - 50.
# concurrentlyAccessedFilesCount = 1

Where can I find more documentation on this parameter? I assume that it somehow controls how many files the client can open inside the backup image on the VBR server.

Suppose I have a restore point mounted in /mnt/backup, and I am copying the entire tree (with rsync, tar, ...), all files would be read sequentially. So changing this value would make no difference.

If, however I had a tree looking like

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/mnt/backup/dir_a
/mnt/backup/dir_b
/mnt/backup/dir_c

and I ran three rsync instances, one for each directory concurrently, would I see a speedup if I set the value of concurrentlyAccessedFilesCount from 1 to 3?


Thanks,
VAB

[rovshan.pashayev]

Hi Volker,

Yes, setting concurrentlyAccessedFilesCount to match the number of concurrent copy/rsync commands (e.g., 3 for 3 parallel processes) will improve performance, as each process can access files simultaneously.

For single-threaded copies, this setting has no effect.