Weird thought for XenServer / XCP-NG for Disk Performance Speed.
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When installing a brand new vm, I'll use Windows Server 2016 for instance, if monitoring the installation and you open the Performance tab, under the section for your Disk Performance, it shows clearly that there is a Disk 0 and Disk 3 however it also shows that the speed is roughly 800 Mbps! 2019-03-22_07h38_54.png
So when the VM finishes installing, and I use the DISKSPD from Microsoft to test speed, the speed I get is clearly nowhere near the same ballpark.
Am I wrong for thinking that maybe this "installation" is done mostly in RAM? Cause clearly 1 SSD directly into the SATA Controller doesn't give 800 MBps +. I had to catch myself yesterday because I had a RAID 0 (on my crappy Dell Perc H200) with 2 SSD's and I was assuming the speed it was displaying was from those. It can't be.
So if this is, in fact, using some partitioned off RAM that's cool, but how do I test my disk speed because I've gotten so many weird results I don't know what is or isn't right when it comes to testing virtually the disk speed.
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Your image is too small to see.
But also there is a difference between Mbps and MBps (more often written as MB/s).
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I cannot see anything on that Image. However I do not believe XCP-NG runs storage speeds on RAM.
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Dangit
How can I get a better copy added to the post?
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800mbps is 100MBps
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I put down 800 MBps per the screen, not 800 mbps.
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@krisleslie said in Weird thought for XenServer / XCP-NG for Disk Performance Speed.:
Dangit
How can I get a better copy added to the post?
Use Greenshot, Jing, ShareX or something and paste it from Clipboard here.
