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Confused: WHS "Extended Storage" / Backup ... What happens if I move extended hard drive / upgrade motherboard? RRS feed

  • Question

  • Hello all...

    I am sorry if somehow i have missed this on the forums... i just cannot seem to find a definitive answer to the following type questions so as to better understand how WHS handles drives and data. Sorry if the questions seem nuanced or redundant... I just don't quite understand how this works and cannot find answers ANYWHERE!

    I LOVE WHS... it rocks and is the perfect solution for a home server.

    Right now I have an 80gb drive with WHS, and 3 others: 1tb and  750gb (extended) and 1.5tb (backup). I dont understand what the 80gb drive stores relative to the extended and backup drives. If i lose the main 80gb drive, what happens to the data on the other 3? I don't know how to do this, but it seems like it would be a good idea to put the OS drive on a data mirroring RAID of some sort, but i do not know how to do that.

    Another scenario just to understand how this works: what would happen if i took out the non-OS drives and tried to install them into a different machine?

    This may be a fork... but I am considering upgrading the motherboard / processor of the machine... so what would happen to all the data on the other 3 drives or what would the process look like so as to not lose any data?

    Neither of these scenarios seem like they would make sense to me:

    1. upgrade the machine (which is essentially a new machine)... and plug in the OS HD. It seems that could cause all kinds of problems
    2. Build new machine... then format the 80gb drive and reinstall WHS... but what would happen when I plugged in the other 3 drives? It the process I experienced adding the drives to the current machine holds true, then i would have to format my drives... right?

    Friday, March 19, 2010 8:09 AM

All replies

  • 80gb drive with WHS, and 3 others: 1tb and  750gb (extended) and 1.5tb (backup). I dont understand what the 80gb drive stores relative to the extended and backup drives. If i lose the main 80gb drive, what happens to the data on the other 3? I don't know how to do this, but it seems like it would be a good idea to put the OS drive on a data mirroring RAID of some sort, but i do not know how to do that.

    20GB of the 80GB Drive will be used for the system, the other 60GB will be used for data and backups - though it is likely that backup data may not be stored there you cannot guarantee that it isn't.  If you lost this drive you would lose the data on this drive and any files that handle duplicated files, you may also lose some backups.


    RAID is not required as it is more efficient to turn on duplicate for shared folders that contain data that is important.  The OS is regarded as sacrificial and server recovery is a relative straightforward process.  When you factor in the recovery nightmares when using RAID not excluding array migration the Windows Home Server solution is by far more logical and easier to support.

    Another scenario just to understand how this works: what would happen if i took out the non-OS drives and tried to install them into a different machine?

    Depending on the hardware difference between the two platforms it may or may not work.  More likely you will be required to reactivate Windows Home Server and in the majority of cases it will fail because the hardware platform will have significantly changes.  Though if you took across your NIC, OS HD and maybe CPU then activation will probably be okay.

  • upgrade the machine (which is essentially a new machine)... and plug in the OS HD. It seems that could cause all kinds of problems
  • Build new machine... then format the 80gb drive and reinstall WHS... but what would happen when I plugged in the other 3 drives? It the process I experienced adding the drives to the current machine holds true, then i would have to format my drives... right?
  • The way forward is to build your new machine and either copy the data across manually, by adding each drive as bakcup drive and copying the data from e:\ to \\localhost\shares etc:
    http://social.microsoft.com/Forums/en-US/whssoftware/thread/2c7364c3-e904-4645-b537-3204adb92a88/#585fff48-4f64-4c50-b5ac-67d74a3e420c

    Or you can do a server recovery:
    http://social.microsoft.com/Forums/en-US/whsfaq/thread/cf354b5d-b37b-4b7f-a0d5-8e573697777f


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    Friday, March 19, 2010 10:56 AM
  • The information you're looking for has been discussed repeatedly here in the forums. Some links to help you out:

    Your option 1. won't, in general, work. Too much basic hardware will have changed, and most likely your server will bluescreen when you attempt to boot it. So you should move over all your storage pool drives (no need to connect the backup drive at this time), make sure they're all connected and that the old system drive is connected to appear first in the boot order, then go ahead with the recovery. You can try a boot prior to recovery, if you like.
    I'm not on the WHS team, I just post a lot. :)
    Friday, March 19, 2010 11:43 AM
    Moderator
  • Thanks for the replies... sorry if this is a duplicate post. I definitely read some threads...but didn't see the questions posed as I understood them. I'm new to the home server world.  

    Thanks again. 

    Friday, March 19, 2010 4:17 PM
  • Based on all this... wouldn't it be better to just install drives in a raid configuration in addition to / separate from the main OS installation and corresponding hard drive?
    Wednesday, April 7, 2010 9:04 AM
  • Windows Home Server doesn't support RAID - it's not needed anyway as duplication provides finer controller over mirroring and the OS is sacrificial.
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    Wednesday, April 7, 2010 10:45 AM