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recover a VM with  .vmdk files?

Posted on 2009-07-03
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Last Modified: 2012-05-07
Hi all,

My VMware server appears to have a permanent disk issue, and sectors are no nolger readable so replacement is obvious. The problem is I want to get one machine off the system before it dies totally and certain key things like VMware being able to see the datastore are now broken, likely due to the read erros on the disk.

Looking at the file system the sym link to "store" points to a /vmfs/volumes directory that is no longer there. The only good news is the one machine I care about seems to still have some files under /vmfs/volumes and I was hoping there was :
1. a way to get them off the server -- SCP, FTP are not there and the file is 260gigs, or mount as a spare disk on a new system and copy over that way.
2. I am hoping the   .vmdk files are enough to import from.

Any leads would be appreciated. I do have an open filer SAN that I could create an NFS share and maybe copy things that way but how would I mount it so VMware ESXi can see it and would the files I have even be enough to recover from?

Thanks
Doug Leece
l---------    0 root     root         1984 Jan  1  1970 store -> /vmfs/volumes/3abb47ef-875ea67c-c948-7bf6ff8d3c38

drwxr-xr-x    1 root     root          512 Jul  3 12:39 tmp

drwxr-xr-x    1 root     root          512 Jun 16 14:47 usr

drwxr-xr-x    1 root     root          512 Jun 16 14:47 var

drwxr-xr-x    1 root     root          512 Jun 16 14:47 vmfs

l---------    0 root     root         1984 Jan  1  1970 vmupgrade -> /locker/vmupgrade

/var/log # ls /store

/store

/var/log # ls /store/

ls: /store/: No such file or directory

/var/log # ls -la /vmfs/volumes/3abb47ef-875ea67c-c948-7bf6ff8d3c38

ls: /vmfs/volumes/3abb47ef-875ea67c-c948-7bf6ff8d3c38: No such file or directory

/var/log # df -k

Filesystem           1k-blocks      Used Available Use% Mounted on

unknown                 188336    122872     65464  65% /

unknown                4192960   1048960   3144000  25% /vmfs/volumes/4959340c-0f612a5a-980c-000d603f1e74

unknown              266862592 265865216    997376 100% /vmfs/volumes/4a4df4b1-351f3118-0537-00096b62f0e4

/var/log # ls /vmfs/volumes/4a4df4b1-351f3118-0537-00096b62f0e4

marge

/var/log # ls /vmfs/volumes/4a4df4b1-351f3118-0537-00096b62f0e4/marge

marge_2-flat.vmdk  marge_2.vmdk
 
 
 
 

/var/log # ls -la /vmfs/volumes/4a4df4b1-351f3118-0537-00096b62f0e4

drwxr-xr-t    1 root     root         1120 May 30 18:55 .

drwxr-xr-x    1 root     root          512 Jul  3 13:19 ..

-r--------    1 root     root      1409024 May 30 18:50 .fbb.sf

-r--------    1 root     root     63143936 May 30 18:50 .fdc.sf

-r--------    1 root     root    255655936 May 30 18:50 .pbc.sf

-r--------    1 root     root    260374528 May 30 18:50 .sbc.sf

-r--------    1 root     root      4194304 Jul  3 12:08 .vh.sf

drwxr-xr-x    1 root     root          560 May 30 18:55 marge

/var/log # ls -la /vmfs/volumes/4a4df4b1-351f3118-0537-00096b62f0e4/marge

drwxr-xr-x    1 root     root          560 May 30 18:55 .

drwxr-xr-t    1 root     root         1120 May 30 18:55 ..

-rw-------    1 root     root    271656681472 Jun 17 09:48 marge_2-flat.vmdk

-rw-------    1 root     root          402 Jun 16 22:48 marge_2.vmdk

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Question by:DLeece
6 Comments
 
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Expert Comment

by:Mikealcl
ID: 24774061
If it has SSH it should have SFTP.
I sftp to my servers all the time using WinSCP

Once you get them off you might be able to tell esx its a virtual appliance to get the import to work.  The options in vcenter on the file menu.  Worked for me in the past.

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LVL 21

Expert Comment

by:za_mkh
ID: 24774525
Use veeams FASTSCP (www.veeam.com) ... much quicker for moving files than WinSCP. Using FASTSCP you can copy the vmdk to your local machine or to another ESX server.
The VMDK is the main file for you VM - you are correct. But the VMX file is equally important. However you can normally just create a new VM (with similar settings) and attach this disk to it. You may need to reconfigure networking in your VM, due to new MAC addresses being generated (all this is stored in the VMX file) if you end up creating a new VM and attaching the existing disk.
Good luck
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Author Comment

by:DLeece
ID: 24774809
Hi ZA,

Turns out  sftp does not work on the VMware side but I found  you could symlink the sbin/dropbearmulti binary so scp and I could push the files off the server. Built an NFS share on my san and I am now pushing the 260 gigs across the lan.  

I will have to go buy a new drive and build a new vmware esxi server I guess.  HOpefully I can expoert most of the config so I don't neet to start completely from scratch.
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LVL 24

Expert Comment

by:ryder0707
ID: 24776560
I'm on the same line with Mikealcl, winscp should work just fine if ssh is running
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Expert Comment

by:za_mkh
ID: 24777103
If it is critical .. you should at least have a RAID 1 setup for your VMFS volume, so if one drive fails, your VM continues to run ... my 2p worth..
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Accepted Solution

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DLeece earned 0 total points
ID: 24890003
Well it looks like this is one solution I will never get to test.  WinSCP etc did not work for getting the files off because this VMware EXSi wouldn't spin up a server. I did find a google posting that recomended creating  a symlink to /sbin/dropbearmulti  and I was indeed able to start pushing the file off the system to another Linux box.

The power went out before I was finished the transfer and when the VMware box came back the disk was unreadable all together so I have no files to try a restore with.  It's my personal lab stuff so no paying customers have been affected.  They of course would pay for UPS and raid systems so this would not likely be the case, but like the cobblers kids and mechanic's wife, everyone else gets the good stuff :-(

Thanks to the guys who signed in on this thread.
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