This solution looks very promising. I installed this hotfix and so far, it 
doesn't seem to hang anymore. The image has reloaded at least 10 times now 
without any problems. Hopefully it's resolved.

Thanks for finding that James.

Mike

Mike Waldron
Systems Specialist
ITS Research Computing
University of North Carolina at Chapel Hill
CB #3420, ITS Manning, Rm 2509
919-962-9778
________________________________________
From: James O'Dell [jod...@fullerton.edu]
Sent: Thursday, September 22, 2011 5:51 PM
To: vcl-user@incubator.apache.org
Subject: Re: Windows 7 SP1 boot hangs

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Maybe it's just a windows thing. They came out with a hotfix for it
anyway.


> Fix Windows 7 SP1 Slow Startup Due to Large Number of Restore Points
> http://news.softpedia.com/news/Fix-Windows-7-SP1-Slow-Startup-Due-to-Large-Number-of-Restore-Points-217883.shtml

> “This issue occurs because the boot plan for the ReadyBoot feature exceeds 
> the size limit of 512 kilobytes (KB). Each restore point creates a snapshot 
> of Windows that Volsnap.sys must validate during the startup process,” 
> Microsoft explained.

But it doesn't explain why sometimes its fast and sometimes it's slow.

Maybe disabling ReadyBoot would help?


On 9/22/2011 1:48 PM, Waldron, Michael H wrote:
> James,
>
> Thanks for the suggestions. I've already increased the ssh timeout, however 
> this hang goes way beyond a reasonable amount of time, anywhere from 20-30 
> minutes.
>
> I'll test with your dhcp suggestion. Although again, my Win7 images that 
> haven't been updated to SP1 are booting just fine, so I'm trying to figure 
> what got changed in the OS with the SP1 update that's causing this. One time 
> it might only spend 30 seconds at the Windows Starting screen, the next it 
> might be 10 minutes.
>
>
> Mike Waldron
> Systems Specialist
> ITS Research Computing
> University of North Carolina at Chapel Hill
> CB #3420, ITS Manning, Rm 2509
> 919-962-9778
> ________________________________________
> From: James O'Dell [jod...@fullerton.edu]
> Sent: Thursday, September 22, 2011 3:36 PM
> To: vcl-user@incubator.apache.org
> Subject: Re: Windows 7 SP1 boot hangs
>
>
> I've got the same setup, and run into what looks to be the same
> problem. ( Win7 booting taking so long that the ssh connection
> times out )
>
> I've done a couple things, and it seems to have gotten better.
>
> 1) adjust the ssh timeout from 5 to 10 minutes
>
>       /opt/vcl/lib/VCL/Module/OS.pm
>
>          '$ssh_response_timeout_seconds = 1200;'
>
>    Why is this hard coded anyway?
>
> 2) Turn off the WINS, and the netbios-over-tcp using settings in
>    the dhcp server to prevent the booting system from registering
>    with a WINS server, and from using NBoT.
>
> shared-network VCLGuestRDPnetwork {
> ...
>     option netbios-name-servers noip;
>     if substring ( option vendor-class-identifier, 0, 8 ) = "MSFT 5.0" {
>        vendor-option-space MSFT;
>        # 1 = enable, 2 = disable - NetBIOS over TCP/IP:
>        option MSFT.nbt 2;
>     }
> ...
> }
>
> 'noip' does not resolve to anything. Which causes dhcp to clear the
> 'netbios-name-servers' (aka WINS) setting if it is globally set.
>
> Maybe this will help
>
> __Jim
>
> On 9/22/2011 11:53 AM, Waldron, Michael H wrote:
>> I've been running Windows 7 images on ESXi 4.1 hosts in our VCL without
>> problem. When I updated several of those Windows 7 images to service
>> pack 1, I'm seeing an issue where more times than not, the VM will hang
>> at the Windows Starting screen for up to 30 minutes. If I revert back to
>> the pre-SP1 image, it boots just fine.
>
>> What's maddening is that it's not consistent. Some times it will boot
>> normally, but many times there's this long hang while booting, which of
>> course causes the reservation to fail. This happens across different VMs
>> running on different ESXi hosts. The common factor is Windows 7 SP1.
>
>> Has anyone else seen this?
>
>> Mike Waldron
>> Systems Specialist
>> ITS Research Computing
>> University of North Carolina at Chapel Hill
>> CB #3420, ITS Manning, Rm 2509
>> 919-962-9778
>
>

- --
Jim O'Dell
Network Analyst
California State University Fullerton
Email: jod...@fullerton.edu
Phone: (657) 278-2256
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