JAta2
11 months agoLevel 4
Veritas System Recovery 23.1 and high compression slowdown.
Last month, with VSR 23.0, my complete backup with high compression took 1 hour and 15 minutes to run. Since then, I upgraded to 21.3 and this month it took 4 hours and 45 minutes to run. After invest...
- 11 months ago
I checked the release note for VSR 23.1. But I never find new features that are related with the performance.
https://www.veritas.com/content/support/en_US/doc/VSR_23.1_Release_Notes_ENIf many VSS shadow copies are stored in the backup source volume, the backup performance will be lower than before. Also, the performance may be lower due to fragments.
To be honest, the standard compression is the most effective for the backup time. High compression always takes more time than standard compression, and the compression rate for high compression is not high than expectation.
I recommend to use the standard compression.