Repairing the RAID Array.

[Chunkee]

and continue to boot ( i am using the VIA RAID on board controller) and I let the computer boots with the single drive, then use the utility to rebuild the mirror...

what happens if the master goes bad, does the mirror then become the master and you replace the master and repair it?

I have never done it, so I was trying to find out.

thanks so much.

JCoria

 

[Matthias99]

Originally posted by: Chunkee
and continue to boot ( i am using the VIA RAID on board controller) and I let the computer boots with the single drive, then use the utility to rebuild the mirror...

what happens if the master goes bad, does the mirror then become the master and you replace the master and repair it?

During the rebuild process? The array fails, and your data is gone. Hope you had backups.

After the rebuild process finishes? It's the same as it was originally. There's no "master"; there are just two mirrors (I am assuming you are talking about RAID1 here). If one fails, the other one takes over.

 

[Chunkee]

Originally posted by: Matthias99

Originally posted by: Chunkee
and continue to boot ( i am using the VIA RAID on board controller) and I let the computer boots with the single drive, then use the utility to rebuild the mirror...

what happens if the master goes bad, does the mirror then become the master and you replace the master and repair it?

During the rebuild process? The array fails, and your data is gone. Hope you had backups.

After the rebuild process finishes? It's the same as it was originally. There's no "master"; there are just two mirrors (I am assuming you are talking about RAID1 here). If one fails, the other one takes over.

Thanks for replying...i really appreciate your insight. Right now one of the drives has failed. The utility states to shut it down, (obviously) and put in the new drive and let it rebuild the array (Mirror). It is just that the utility shows the one drive as master and the other as mirror, (the mirror being broken). I do have backups, just would prefer to get the array rebuilt.

I was unsure about the nomenclature that the utility uses. Another question...when I put the new drive in, will I need to format it first before attempting to rebuilding it?

thanks again so much.

JCoria

 

[Matthias99]

Originally posted by: Chunkee
Thanks for replying...i really appreciate your insight. Right now one of the drives has failed. The utility states to shut it down, (obviously) and put in the new drive and let it rebuild the array (Mirror). It is just that the utility shows the one drive as master and the other as mirror, (the mirror being broken). I do have backups, just would prefer to get the array rebuilt.

I'm not sure exactly what utility you are using; the names for everything are not really all that standardized. But in a RAID1 array where everything is synced, either disk can fail and you'll be OK; them calling one of them the 'master' shouldn't make any real difference.

I was unsure about the nomenclature that the utility uses. Another question...when I put the new drive in, will I need to format it first before attempting to rebuilding it?

Normally, whatever you use to to the rebuild should handle that. It will put whatever metadata/formatting it needs on the partition, then start copying over the data.

You may have to partition the drive first (that is, create a logical partition at least as big as the one on the other mirror), but usually it can do that for you as well. The documentation for your RAID controller/software should describe the process.

 

[Chunkee]

Thanks again. I am just using the simple VIA RAID utility from the VIA arena website.

JCoria

 

[Chunkee]

I put in a 160gb, booted to the one good and the utility repaired the array mirror

thanks for the assistance.

most greatly appreciated.

JC