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W2K: Computer Management/Storage/Disk Management  - how to allocate unallocated, basic, online HDD with EXISTING data?

Posted on 2006-10-24
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Last Modified: 2013-12-03
In W2K, SP4:
Computer Management/Storage/Disk Management
shows  "Disk 2: Basic,  38.28GB, Online,  UNallocated"

1. how I can make above "Disk 2"  ALLOCATED in "Disk Management"  WITHOUT deleting
existing data and/or starting partitioning?

2. Does Partitioning, but not formating, in "Disk Management" keep existing data on HDD and eventually force assigning drive letter to this hdd?

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Question by:trial2006
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6 Comments
 
LVL 30

Accepted Solution

by:
pgm554 earned 300 total points
ID: 17797484
Unallocated means it has no file system.

So if there was data on there to begin with, it's lost.

You would need a recovery too like Ontrack or Getback Data to recover the files.
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Assisted Solution

by:rindi
rindi earned 200 total points
ID: 17801727
Partitioning only changes the partition info on the HD, so the data is still there. You can recover that data using the above mentioned tool, but personally I'd use getdataback as that is the best tool. It doesn't write anything to the disk you want to recover from, so it is safe to use, but you will need enough free space on another disk to copy the data to. The free trial will show you what can be recovered, and once you register the product, you will actually be able to do the recovery. You don't need a drive letter assigned for the recovery.

http://runtime.org.

You can only assign drive letters to formatted drives. So without formatting, no letter.
0
 

Author Comment

by:trial2006
ID: 17813457

I used GetDataBack and recovered directory tree and files. But what worries me is :

1) last Fri I put my hdd in the hdd-to-usb enclosure and connected to one Xp Home pc,
backed up data successfully, and then properly disconnected usb enclosure.

2) on Sun, when I repaired that XP Home Pc, i connected usb enclosure back, only to
my surprise that hdd in the usb enclosure is not 'visible' .  
I then tried to 'see' my hdd by connecting my ubs enclosure to other PCs (W2K, XP pro) -
but to no avail.

3) only THEN is when I look into "Disk Management" and UN/allocated issue, BUT never ever
proceeded to the end of Disk Management's partitioning (with no formatting option) wizard.

4) So my hdd became 'invisible' BEFORE I even touch disk management and allocation issue.
It became 'invisible' between the steps 1. and 2. above!!!

Q1:
Why?  I just moved back and forth  hdd jumper to master and slave positions, that's all.
And of course, turned Adaptec usb enclosure's power on/off.

Q2:
Now, when I partition and format my hdd again, how to protect it from being 'invisible' /unallocated
again when I use it in the Adaptec USB enclosure on various machines?
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LVL 30

Assisted Solution

by:pgm554
pgm554 earned 300 total points
ID: 17813609
Well ,USB drives in general are flakey and this is just the nature of the beast.
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Author Comment

by:trial2006
ID: 17813845
ok, I agree/know that usb drives are bad - but they (usb drives) are just another application layer over the
already existing lower-lever layers, which hdd should be. So, why should low-level hdd code be affected back from
the higher-level application (usb driver)?

there must be some hw, firmware code or something (on BIOS level?)  
which protects, so to speak, the 'entrance gate' of the hdd: listen, you higher-lever application, you can use me,
low-leve code, here is my so to speak API,
BUT you CAN NOT CHANGE me (ie., you can not just erase me or make me unallocated without explicit command given
to your user interface - not built in/programmed, by mistake or  not, in your code)!

In other words, how could hdd low-level code, firaware etc. could be exposed so badly?

Any idea?
0
 
LVL 88

Assisted Solution

by:rindi
rindi earned 200 total points
ID: 17814081
One of the problems you have with USB drives is power. The PC's USB ports usually don't supply enough power for many drives, so you need an external power source. Another is that if something goes wrong, you don't have lowlevel access to the disk like you do when it is connected directly to the IDE or SATA connector of the PC. Most tools then won't be able to recognize the disk.
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