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File Duplication Strategy: All-Or-Nothing?

General discussion
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I'm starting to think that maybe one should either designate all shares as TB duplicated or designate no shares TB duplicated.
Reasoning:
- Files are scattered throughout the physical drive pool, regardless of what share they are in.
- If a physical drive dies, it will take both duplicated an non-duplicated files with it.
- To the extent that duplicated and non-duplicated files are intermingled on that disc, one will never know what files have been lost until something tries to access a lost file - creating more of a mess than if one simply knew that all files were gone - and, perhaps, needed TB restored from external backup - OR, in the case of 100% duplicated files, no mess at all.
Does this sound reasonable?
- Edited by PeteCress Tuesday, July 28, 2009 1:51 PM
- Changed type kariya21Moderator Wednesday, July 29, 2009 3:14 AM discussion
Tuesday, July 28, 2009 1:49 PM
All replies
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Pete
Yes, thats about the size of it.
To be honest, if you think your data is important enough to "keep protected" then you should do everything reasonable to protect it - so for the sake of enabling folder duplication, its worth doing!
Andrew
MVP - Windows Home Server http://usingwindowshomeserver.comTuesday, July 28, 2009 2:08 PMModerator -
I'm starting to think that maybe one should either designate all shares as TB duplicated or designate no shares TB duplicated.
Reasoning:
- Files are scattered throughout the physical drive pool, regardless of what share they are in.
- If a physical drive dies, it will take both duplicated an non-duplicated files with it.
- To the extent that duplicated and non-duplicated files are intermingled on that disc, one will never know what files have been lost until something tries to access a lost file - creating more of a mess than if one simply knew that all files were gone - and, perhaps, needed TB restored from external backup - OR, in the case of 100% duplicated files, no mess at all.
Does this sound reasonable?
I don't agree. You should base it on what you consider to be "valuable" and make your decision based on that. I don't duplicate my Videos and Music folders because if I lose them, I still have the original media and can re-rip them. However, my Photos and my own personal folders are extremely important to me. My family pictures and personal documents can't be replaced (which is why I not only have Folder Duplication enabled on those shares, but I use Jungle Disk to back those shares up "to the clouds" automatically).- Edited by kariya21Moderator Wednesday, July 29, 2009 3:16 AM
Wednesday, July 29, 2009 3:14 AMModerator -
... I don't duplicate my Videos and Music folders because if I lose them, I still have the original media and can re-rip them. However, my Photos and my own personal folders are extremely important to me. My family pictures and personal documents can't be replaced (which is why I not only have Folder Duplication enabled on those shares, but I use Jungle Disk to back those shares up "to the clouds" automatically).
I'm guessing that, after a physical drive has failed and been replaced, you then do an unconditional copy of those non-duplicated files from your backup media to the pool - and tell the copy procedure to replace existing files.
Seems like that would:
- Resolve the uncertainty around which non-duplicated files survived the disc failure/replacement and which did not
- Remove any doubt as to whether any non-duplicated files were corrupted in the failure/replacement
Wednesday, July 29, 2009 3:08 PM -
It's what I would do. I don't use Jungle Disk or other cloud-based backups (the thought of how long it would take to restore a significant amount of data makes me cringe and my ISP drool with greed), but if you back up your shares on a regular basis, then yes, in the event of a disk failure that involved data loss I would restore the most recent backup.
I'm not on the WHS team, I just post a lot. :)Wednesday, July 29, 2009 3:12 PMModerator