Hyper-V Failover Live Migration failed. Error 21502
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 EDIT: Just to be clear when I first started the troubleshooting I had 1 problem. After the first problem cleared I encountered with the second problem. So if you skim through the thread you may get confused very quickly. I have been trying to configure a vSAN by StarWind with 2 node for the past weeks. With multiple guides and help from the community, still I cannot test LIVE MIGRATION. Quick Migration does works so I do not quite understand Why? note: Quick Migration works. Force migration via restarting the server works. Live Migration failed confused From my initial research I know the cause is probably something to do with setting or naming. Something is not identical and is causing the failure between the node. I configure the server mirroring each other from scratch and still the problem exist. Here are some screenshots. Hopes it helps to narrow down the cause 
    
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 Let's ping @KOOLER @StarWind_Software @original_anvil 
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 @Lakshmana 
 This article pointed out problem with authentication http://www.virtualizationadmin.com/articles-tutorials/microsoft-hyper-v-articles/general/diagnosing-live-migration-failures-part2.htmlThis article resolved the problem http://www.hyper-v.nu/archives/pnoorderijk/2013/03/microsoft-virtual-system-migration-serviceservice-is-missing/ Also, my Active Directory is a bit of a mess so there are multiple security setup that inherited when it should not. Restore to default and unchecked inherited resolve that. Thank you for the article!  
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 So after the whole Live Migration failure, I have managed to bring it online, as screen shot above. Now all the setting should be set correctly, however it still failed on me when I try to create a VM with 2GB memory. I named it Zeus (stole the idea from the naming server idea). 
 At this point I am dumbfold and confused. Life as a sole admin is hard.
 Helo me MangoLassi, you are my only hope.
  
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 The error seems kinda self evident - not enough disk space. How much freespace in the Hyper-V data store is there? 
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 @LAH3385 That error looks like you might have run out of storage at an unexpected place. I know you've probably looked already, but someone has to ask. Do you have 2GB of free space on that C drive? 
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 @Dashrender 
 The cluster storage space is configured with starWind vSAN. I gave it a good 1TB (1,0001GB)
  
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 @LAH3385 said: @Dashrender 
 The cluster storage space is configured with starWind vSAN. I gave it a good 1TB (1,0001GB)
  Right, but the error is claiming it's on the system drive. 
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 @travisdh1 
 The VM reside on the cluster drive on C:\clusterstorage\volume1
  I might be overlooking this and screwed up somewhere along the way.. but shouldn't C:\clusterstorage\volume1 be a virtual drive? connected by iscsi? 
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 Show us the Disk Manager view for your drives, please. 
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 Am I seeing correctly? the CSVFS (Disk 3) is not mounted anywhere? 
 Maybe this view doesn't actually show mount points that aren't just a drive letter?
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 can we see the output from Mountvol.exe I found the info at http://thenubbyadmin.com/2012/03/15/listing-all-volume-mount-points-on-a-windows-server/ 
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 @Dashrender 
 Now that you mentioned that. somehow the drives on both server (which should be identical) is not.
   
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 @Dashrender 
 here is the mountvol.exe result.
  
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 awww - I think I see the problem. Your volume on Disk 3 is set to 1 GB, not one TB. You only have 888 Megs free on that volume, and you need 2 GB (2048 MB) free for the RAM disk. though I'm not sure how you installed Windows into a 1 GB partition. 
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 Can you do a details based listing of what is is c:\clusterstorage\volume1? 
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 @Dashrender 
 From your previous message currently I am redoing the whole iscsi and volume clustering. I will report back if the problem resolved.
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 @LAH3385 said: @Dashrender 
 The cluster storage space is configured with starWind vSAN. I gave it a good 1TB (1,0001GB)
  What I can't tell, is this graphic showing 1.001 GB or 1,001 GB? Assuming it's showing 1,001 GB (nearly 1 TB of space), this is only showing the whole array, not the the partitions that you created in the array. 





