jama
Jan 30 2007, 06:35 PM
I have 2 hard disk using RAID-1 (mirror) to back up data on my computer............I've done that............but when I test by shutting down or disable 1 of 2 this hard disk, the another one can't work, it can't boot into Windows.........
do you know how can I do to make that hard disk work again
eth00
Jan 31 2007, 08:36 AM
Sounds like an issue with your drive controller, we would need more information on how your computer is setup.
jscott
Jan 31 2007, 11:37 AM
Greetings,
RAID1 is not a backup strategy. It simply provides you the ability to have fault tolerance in case one disk fails.
It will not permit you the ability to recover lost data, or data that has been corrupted when written to disk.
For example- if you accidentally delete data from the disk, RAID1 will not permit that data to be restored. Similarly, if there is a glitch in the disk controller during a write, which corrupts the data being written, that corrupted data will be written to both disks, possibly corrupting both disks to the point where the server cannot use any of the data stored on those disks.
A proper backup strategy, when implemented with a service such as DiskSync, provides you the ability to recover data from multiple points in time up to and including the entire system, if so configured.
Whereas a RAID1 provides fault tolerance in the event of a disk failure, DiskSync provides a backup for a proper disaster recovery plan.
I'm sorry, I don't know the specifics of your server or how it is constructed, so I will not be able to assist you with your questions as to why the RAID1 is not behaving as you expect- I just wanted to interject that RAID1 is not a backup strategy, and can leave you open to complete data loss in some scenarios. If you are having difficulty getting your server back online, your best option would be to open a ticket with support for assistance.
jama
Feb 1 2007, 07:19 AM
uhm, thanks all of you, I just find it in Microsoft's website.........I'm doing a project about Windows Server 2003 Active Directory, and I use RAID-1 in my PDC (Primary Domain Controller) to provide fault tolerance (just like jscoot said ^^), and you guys have any ebook about this subject please up for me or send for me with email: jama_pika86@hotmail.com
thanks all you guys first ^^