10gb backup only managing about 80Mb
-
I have a dedicated 10gb link directly connected between hosts for backup and replication.. i noticed the speeds were pretty slow.. the hosts are using local SSD but i would have thought i would get higher speeds on this.. they are using isolated ip adds so they only talk to each other... Am i missing something or can tweak anything to get higher speeds or is it the SSD causing the problem
MAny Thanks
-
Hi,
You mean 80MiB/s in transfer speed?
-
@olivierlambert ok here's a bit from the log.. Start: 2025-09-03 12:00
End: 2025-09-03 12:00
Duration: a few seconds
Size: 624 MiB
Speed: 61.63 MiB/sStart: 2025-09-03 12:00
End: 2025-09-03 12:00so other jobs are sowing anywhere betwwen 25 to about 80. MiB/s
-
What kind of backups are you using? In general, the bottleneck is within the export speed per disk (or if you do full backup, compression can be a factor)
-
Continuous replication.... runs every 12 hrs...
-
@utopianfish said in 10gb backup only managing about 80Mb:
@olivierlambert ok here's a bit from the log.. Start: 2025-09-03 12:00
End: 2025-09-03 12:00
Duration: a few seconds
Size: 624 MiB
Speed: 61.63 MiB/sStart: 2025-09-03 12:00
End: 2025-09-03 12:00so other jobs are sowing anywhere betwwen 25 to about 80. MiB/s
What CPU are you using? We saw about the same speeds on our older Intel Xeon's with 2.4ghz and when we switched to newer Intel Xeon Gold with 3Ghz the speeds increased quite a bit, we're now seeing around 110-160 MiB/s after migrating the XO VM.
-
I would have ask the same question
-
My hosts are Hp Elitedesk G5 SFF.. 64gb Mem Processor type is Intel Core i5 3.0Ghz i believe.. nics are showing connected @ 10GB
-
IDK if the BIOS provides many power options, but you could make sure you are turbo boosting when needed. Because it's likely your CPU is both old but also not getting at 3Ghz at all.
-
@olivierlambert said in 10gb backup only managing about 80Mb:
I would have ask the same question
Great minds and all that, you know
@utopianfish check if you have any kind of power options regarding "power saving" or "performance" modes you can change in the BIOS. That could make a big difference as well.
-
@nikade i think the problem is its using the mgmt interface to do the backup..its not touching the 10GB nics.. when i set it under Pools/Adanced/Backup to use the 10gb nic as default the job fails... setting it back to none the job is successful with a speed of 80 MiB/s.. so using the 1GB mgmt nic... how do i get the backups to use the dedicated 10gb link then. ?
-
Use XO to connect on the host with the 10G network IPs addresses.
