Is there any way to monitor the performance of a storage vmotion while it is in progress? I would like to see something like a kb/s number. Anything other than just the basic % complete number you see in the vSphere Client.
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What type of storage do you have? What type of physical networking do you have? – ewwhite Dec 08 '15 at 15:00
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I am copying from an OpenFiler server connected via iSCSI to an HP StoreVirtual VSA network RAID 10 cluster. Everything is connected via gigabit ethernet. – Caynadian Dec 08 '15 at 15:25
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You could probably set up port monitoring/mirroring on your switch and run a packet capture to determine the start/stop times and throughput/transfer rate of the migration. – joeqwerty Dec 08 '15 at 18:38
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@joeqwerty: Yeah, but that would show all traffic to/from those iSCSI links with no way to differentiate what is part of the svMotion and what is other data. I could look at the performance graphs for the same information. Nothing seems to be able to isolate the performance of just the svMotion move. – Caynadian Dec 08 '15 at 19:42
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As ewwhite says there's little through the GUI but if you were to look at the affected host's log files I think you could essentially follow the process through from start to end. What I will say however is that ESXi logs are DETAILED in the extreme, be prepared to spend a lot of time trawling through them - VMWare Log Insight will help you if you're interested however.
Chopper3
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I thought about this and I have seen articles regarding using the logs to trace svMotion. But, the log entries tend to be created at distinct steps during the process whereas I am looking for the performance of each individual file copy operation. Sort of like what you get when you copy a bunch of files and show the details in Windows 7/8/10. – Caynadian Dec 08 '15 at 16:19
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again I've not log-trawled this myself but I'd be surprised if there wasn't at least some hint you could use? – Chopper3 Dec 08 '15 at 16:31