Disk Bad block. Raid 5

[Barry]

Greetings all,
I have a customer that has a Win2003 Terminal Server that has a MegaRaid
SATA card with 3 drives for Raid 5.
The system event reports an event 7, device\harddisk1 has a bad block.
Errors are logged mostly when I try open the computer management ( which
does not open), or reboot the server.
Its obvious I gave a disk problem. Going to the raid controller shows the
disk all online.
How do I locate the faulty disk, or at least repair the disk. I thought of
running CHKdsk, bit heard of some possible problems.
This is a heavily used server and critical to the customer.

An ideas?
Thanks in advance.

Barry

 

[glenn]

Re: Disk Bad block. Raid 5

The error says disk 1, so it should be the middle disk in the array as it
should be disk 0,1,2. The array software should have a way of showing you
which drive is which by flashing the lights on the front of the drive.

Glenn

"Barry" <Barry@discussions.microsoft.com> wrote in message
newsC37C682-0F0B-4F37-A736-4FF868D4AAD0@microsoft.com...
> Greetings all,
> I have a customer that has a Win2003 Terminal Server that has a MegaRaid
> SATA card with 3 drives for Raid 5.
> The system event reports an event 7, device\harddisk1 has a bad block.
> Errors are logged mostly when I try open the computer management ( which
> does not open), or reboot the server.
> Its obvious I gave a disk problem. Going to the raid controller shows the
> disk all online.
> How do I locate the faulty disk, or at least repair the disk. I thought of
> running CHKdsk, bit heard of some possible problems.
> This is a heavily used server and critical to the customer.
>
> An ideas?
> Thanks in advance.
>
> Barry

 

[Steve-UK]

RE: Disk Bad block. Raid 5

I think you are going to have to run a CHKDSK /F on it (or a more
sophisticated third party disk checking tool), because you're using hardware
RAID and the controller software isn't showing a physical problem. Just make
sure you've got a backup first. But that still won't tell you which disk is
bad, which sucks, but it might fix it. Does the maker of the controller have
an admin tool that you can run from inside of Windows?

The event log won't really show you much that is helpful in diagnosing the
disk if you're using hardware RAID, because the message relates to the array,
rather than the individual drives.

If it were me I'd recommend the client invest in an SAS-based RAID 5 array,
they're more reliable (and faster) than SATA imx. You can always just put a
hot spare on it and wait for the disk to fail, but I'm sure that isn't the
ideal solution.

Steve.
MCSA+Messaging 2003

"Barry" wrote:

> Greetings all,
> I have a customer that has a Win2003 Terminal Server that has a MegaRaid
> SATA card with 3 drives for Raid 5.
> The system event reports an event 7, device\harddisk1 has a bad block.
> Errors are logged mostly when I try open the computer management ( which
> does not open), or reboot the server.
> Its obvious I gave a disk problem. Going to the raid controller shows the
> disk all online.
> How do I locate the faulty disk, or at least repair the disk. I thought of
> running CHKdsk, bit heard of some possible problems.
> This is a heavily used server and critical to the customer.
>
> An ideas?
> Thanks in advance.
>
> Barry