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Old 05-27-2009, 03:56 PM   #7 (permalink)
Hefemeister
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Default Re: Hard Dizzle Drives

If you get a nasty virus on one drive it is on the other.
If you accidentally delete a file it deleted off both drives.
If a file is corrupted it is corrupted on both drives.
I have had people with raid1 and one drive failed and they did not notice until the second drive failed.

Do not get me wrong raid1 is great insurance against a drive failure. For home use and home data it should suffice. Just giving you all the info. Sometimes it just gives a false sense of security.

I have installed raid1 and raid5 for many businesses but still run a backup protocol.

Edit:
Quote:
Originally Posted by synergy View Post
EDIT: I think what Hefe might be referring to is the fact that you can't count on 2 TB of data being available as backup when it's in a RAID 1. Since one drive mirrors the other it is essentially like that second drive doesn't exist (in terms of space available.)
I was aware that raid1 is mirrored so you only get 1tb.

Quote:
Originally Posted by wafflehammer View Post
yea but if 1 fails they both fail...that's why it's not good for backup

You are thinking or raid0 which is a stripped array where if one drive fails all data is gone.
raid1 one is a mirrored array where if one drive fails data is still intact.
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