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Max Concurrent Tasks per Backup Proxy , by default Veeam will set this according to the amount recommends this to be set to 2x the number of CPU cores detected by in your VBR server. ( apply the same modifications on the VM backup proxy ).
Note: refer to official documentation
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Network Traffic Throttling on the backup proxy
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Example HAproxy configuration for handling multi-VBA clients
Note: Veeam recommends the use of VBR managed mode which provides network traffic rules via their backup proxies. add helpcenter.veeam.com link
Scenario 1: simple max connections
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If you timeout you get a 503, which Veeam will retry. ( up to a maximum of 40 mins )
Scenario 2 : Sliding window option , for burst traffic handling
| Panel | ||
|---|---|---|
| ||
frontend website bind :80 stick-table type ipv4 size 100k expire 30s store http_req_rate(10s) http-request track-sc0 src http-request deny deny_status 429 503 if { sc_http_req_rate(0) gt 20 } default_backend servers |
Return 429 503 if the rate > 20 concurrent requests in the last 10s.
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