RAID-1 Mirroring

[Guest]

Hi,

I have a question with Windows 2000 RAID-1 Disk mirroring
of IDE drives. What happens when a drive fails? Will the
OS stay up and running? How will you be notified? What if
a drive fails - when I reboot how will the BIOS know to
boot from the good drive (it may be the Primary IDE Master
or Secondary IDE Master)?

Thanks,
Todd

 

[Dave Patrick]

If you're talking about hardware mirroring the operating system knows
nothing about the mirror. The drive controller handles all of this. If the
drive controller detects a drive error the it will take the drive offline
and probably have an audible alarm to alert you. In this event the pc and OS
will continue to function normally. In this event just remember to never
simply kick the drive back online since the offline and online images would
no longer match. Always rebuild the offline from the online image.

--
Regards,

Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft Certified Professional
Microsoft MVP [Windows]
http://www.microsoft.com/protect

| Hi,
|
| I have a question with Windows 2000 RAID-1 Disk mirroring
| of IDE drives. What happens when a drive fails? Will the
| OS stay up and running? How will you be notified? What if
| a drive fails - when I reboot how will the BIOS know to
| boot from the good drive (it may be the Primary IDE Master
| or Secondary IDE Master)?
|
| Thanks,
| Todd

 

[Guest]

Hi Dave,

I was thinking of "software" disk mirroring. Creating a
disk mirror under Disk Administrator. Could you answer my
question for Software RAID-1 mirroring?

Thanks,
Todd

 

[Bjorn Landemoo]

Todd

If your primary master fails, the computer usually hangs and requires a
boot from a fault tolerant floppy to get back up. This MS Knowledge Base
article has more details:

http://support.microsoft.com/?id=172912

This article might also be relevant:

http://support.microsoft.com/?id=141702

Best regards

Bjorn
--
Bjorn Landemoo - (e-mail address removed) - http://landemoo.com/
Microsoft MVP (Windows Server - File System)

Hi Dave,

I was thinking of "software" disk mirroring. Creating a
disk mirror under Disk Administrator. Could you answer my
question for Software RAID-1 mirroring?

Thanks,
Todd

-----Original Message-----
If you're talking about hardware mirroring the operating system knows
nothing about the mirror. The drive controller handles all of this. If the
drive controller detects a drive error the it will take the drive offline
and probably have an audible alarm to alert you. In this event the pc and OS
will continue to function normally. In this event just remember to never
simply kick the drive back online since the offline and online images would
no longer match. Always rebuild the offline from the online image.

--
Regards,

Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft Certified Professional
Microsoft MVP [Windows]
http://www.microsoft.com/protect

| Hi,
|
| I have a question with Windows 2000 RAID-1 Disk mirroring
| of IDE drives. What happens when a drive fails? Will the
| OS stay up and running? How will you be notified? What if
| a drive fails - when I reboot how will the BIOS know to
| boot from the good drive (it may be the Primary IDE Master
| or Secondary IDE Master)?
|
| Thanks,
| Todd


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