How do you know when a Raid (1) Mirror HDD is bad??

[rarebear]

I am planning on Mirroring my new WD 1TB and was wondering how you would know one of the pair is ill???

Thanks

 

[masteryoda34]

Usually the RAID software will tell you if there is a problem.

 

[Tweakin]

If you are using the Intel RAID, just load the matrix software in windows...this will allow you to monitor the system.

 

[rarebear]

Thanks Guys,
I was just looking at the app I think in the Start Menu today..

 

[RebateMonger]

Hardware RAID controllers over $100 or so will have audible alarms. Others have popups, may send messages to the Windows Event Logs, or may send a warning email to a SMTP server. This is one area where hardware cards are far superior to built-in chipsets.

 

[Nothinman]

This is one area where hardware cards are far superior to built-in chipsets.

The hardware plays a very small role in this area, it's the software around it that's important and is doing the alerting.

 

[taltamir]

one warning though. If a drive is silently erroring there is no way for the filesystem to tell which drive it is and the data will not be retreiveable (you could however split a raid1 array into two non raid drives and see which one works).
A proper file system, like ZFS, can help you with that by checksuming the files.