PBS speed drops after +/- 15%

Oct 25, 2024
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Hello,


We have installed a new Backup Server 3.3.0 on an HPE DL380 G9 with 44 CPUs, 64GB of memory, and 80TB SSD storage (2x 512GB RAID1 for PBS - 22x 4TB in RAID6 for backups). The PBS is connected via SFP over 10Gb switches, and all other equipment, such as the PVE nodes and SAN, is connected in the same way to the 10Gb switches.

When we start a backup, we achieve speeds of up to 260 MB/sec, but after 15%, the speed drops to 60 to 30 MB/sec.

This is the only backup running at that time, and it is for a single VM.

What could be the cause of this?


Thank you.
 

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