Looking for a program to read an esxi 5.0 HDD

I've been having an issue where one of our esxi hosts freezes during a power outage even though it's connected to a battery backup. Its a Dell R715. Dell and VMWare can't find a reason why. When it locks up the power is still on, fans are running and the HDD lights are still on (just not blinking since it doesn't have activity).

I am unable to ping it, SSH into it and our vcenter gives me an alert that it's down (and vmotions whatever servers are on it to another host).

Even though ive created a scratch partition VMWare says its not enough and they don't see anything.

It happened again the other day so i took one of the HDD's (its on a RAID 10) and gave it to our computer forensics guy and he made an image of the drive for me on another HDD (SATA).

I was wondering if anyone knows of a program where i can view the contents of the drive? Since this is esxi 5 I think its a GPT and not VMFS but im not sure. When i see the drive in disk manager it does mount 2 partitions. one says esxi and the other doesn't say anything but i do see its 4GB in size. My windows machine mounts it as drive O: but whenever i click it windows says it needs to be formatted.

I've tried diskinternals.com but it doesnt find anything. I've tried mounting it in ubuntu but ubuntu cant determine the FS either. Does anyone else have any suggestions?
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msidnamAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, there is, we've had success with this product VMFS Recovery.

You can download for free, and use it, if it finds any virtual machine disks, you can then enable the full version, via purchase.

http://www.diskinternals.com/vmfs-recovery/
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msidnamAuthor Commented:
I was using that program yesterday but it doesn't seem to get the data thats mounted as the O: drive. It does seem to get the data that was previously on the drive as i see SQL and windows files, but nothing related to the esxi partitions.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
VMFS Recovery will scan a VMFS partitions and recover VMDKs.

I'm not sure what you are referring to O: drive and SQL and Windows files!
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msidnamAuthor Commented:
I didn't have VMDK files on those drives. it was just the hypervisor. I'm trying to somehow mount it and grab the syslogs and vmkernel logs.

sorry, when i was talking about the SQL and windows files, i was saying that i think those may have been files that were on the HDD before the forensics guy gave it to me. It's a 1TB drive so it has a lot of unallocated space.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
okay, so you just need to get logs.

the issue is that logs get overwritten, and recommended to send the logs to a syslog server (off the host).
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msidnamAuthor Commented:
I shutdown the server and havent rebooted it. I took the HDD out hoping that the data will still be there and not overwritten since i didnt turn it back on.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
see here, you can use this article to boot Slax and get to the partitions

http://www.vm-help.com/esx/esx3i/Reset_root_password.php
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msidnamAuthor Commented:
Excellent. this worked perfectly. I was able to see the partitions and grab the logs files.
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