2012 Hyper-V Guests Very Slow to Boot

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we have 2 identical dell poweredge t410's running windows server 2012 standard running hyper-v hosts (and nothing else).

the hyper-v guests on 1 of machines take on 40 minutes boot.  once booted vm's seem perform well.  second t410 running without problems.

the dell has 40gb ram , has 12 virtuals, 5 xp virtuals running 1 gb ram each , 7 windows 7 vm's have 2 gb.

when running, dell's task manager says it's using 22.9 of 40gb ram , cpu ticking on @ 1 or 2%.

i've wiped , re-installed host clean windows server 2012 with no improvement.

dell's technical support has had quick , can't see wrong hardware side of things.  bios settings in problematic machine has same settings bios in machine working ok.

the clients on 'slow' host part of domain domain controller on 'good' host.  tracert , ipconfig report expected.

a 'google' has turned couple of articles seem refer windows server 2008 r2, however, problem started appear when installed server 2012.

so, in nutshell, 2 identical servers, guests on 1 working fine, guests on other take on 40 minutes boot.

could give me pointers?

richard

hi!

could please describe how disks configured?

logging on vm , booting vm are very disk intense. in case store vms on raid 5 array, check health of disks, cause if 1 disk have failed, disk performance can severly degraded.



Windows Server  >  Hyper-V



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