Hyper-V snapshots sometimes comes without mounted ISO

hello, all.

running automated tests microsoft test manager , scvmm virtual environments. started mount iso images file collections on vms (we used copy them vms network share, slow , caused timeouts , network share access problems).

iso images being mounted via wmi hyper-v provider. images located in host's local folders (c:\iso), network shares being synced "primary" share dfs.

problem is: (i'd in 1 case 100) virtual machine doesn't "see" mounted drive it's ejected. hyper-v manager shows correct "image file" in vm's settings. changing "none" , same image file fixes problem. 

bug in hyper-v? inserted additional check: after calling wmi run dir d:\ ensure image mounted. , it's there. , doesn't...

any suggestions other re-mount image every time it's needed :-) ?

hi sir,

>>the problem is: (i'd in 1 case 100) virtual machine doesn't "see" mounted drive it's ejected.

what os of hyper-v host ?

i want to make sure issue is  the dvd device disappeared from vm or iso file disappeared from dvd drive of vm .

i assume iso　file disappeared dvd drive .

if host 2012/r2 , you may try replace wmi by powershell command :

set-vmdvddrive -vmname testvm -controllernumber 1 -controllerlocation 0 -path $null

best regards

elton ji

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