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Posted on 2007-03-25
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What level of fault tolerant does a spanned volume provides?
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Question by:tee2520
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iamgibbon earned 50 total points
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If you are using a spanned disk in windows disk managment there is no fault tolerence available, it is always best to use a hardware raid card to creates panned volumes with fault tolerence (raid5) etc.
for more information on dynamic disks and spanned volumes visit: http://technet2.microsoft.com/WindowsServer/en/library/0cd59ee9-79a5-4ba7-ade2-2a8cf5e9ba901033.mspx?mfr=true
hth.
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by:sdcrouch
ID: 18793156
Spanned volumes combine areas of unallocated space from multiple disks into one logical volume. The areas of unallocated space can be different sizes. Spanned volumes require two disks, and you can use up to 32 disks. When creating spanned volumes, keep these points in mind:

• You can extend only NTFS volumes or unformatted volumes.
 
• After you create or extend a spanned volume, you cannot delete any portion of it without deleting the entire spanned volume.
 
• You cannot stripe or mirror spanned volumes. For more information about striped or mirrored volumes, see “Striped Volumes” or “Mirrored Volumes” later in this section.
 
• Spanned volumes do not provide fault tolerance. If one of the disks containing a spanned volume fails, the entire volume fails, and all data on the spanned volume becomes inaccessible. The reliability for a spanned volume is less than the least reliable disk in the set.
 
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