Disk Bad block. Raid 5

[Guest 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

[Guest 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

news:DC37C682-0F0B-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

[Guest 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