We're getting very slow backups to our Data Domain 640. We're getting an average transfer rate of 2-3MB/s. We're using Veeam7 to backup, here are some of the bottleneck reports:
Load: Source 10% > Proxy 9% > Network 0% > Target 88%
Load: Source 20% > Proxy 14% > Network 2% > Target 98%
Load: Source 63% > Proxy 23% > Network 31% > Target 68%
Load: Source 8% > Proxy 20% > Network 0% > Target 99%
We're backing up from a Nutanix cluster to the Data Domain. We're using NFS and a Linux mount. We're only on 1GbE for the Data Domain and we don't have BOOST yet. I was reading online that people with a similar setup are getting a speed over 100MB/s.
Does anybody have any ideas?
Is nolock enabled? Receive/Window sizes @ 32768? Have attribute caching turned off or on?
Can you post your mount options and uname/release info? DDOS info?
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(Sorry for the slow reply but I've been tied up with work. This is my personal account but I'm an EMC Partner and we had some pressing professional services engagements.)
I like having more information pulled and to establish a performance profile but in general you can use the following as a baseline configuration: This assumes much (compression, streams, schedules, software versions etc).
EMC Document 30124 in regards to stale handles troubleshooting provides an example: mount -F nfs -o hard,intr,vers=3,proto=tcp,rsize=1048600,wsize=1048600 rstr01:/ddvar /ddr/ddvar
Even if the settings above improve performance to an acceptable level, you may want to do a deep dive analysis/tuning. You can also have an independent Health Check customized too.
Let me know how things go.
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