Posted on 2004-04-26
Below is a qustion I posted the other day and thought I had the answer. well it didn't work..
Have a server that has 2 36gig scsi hard drives. Mirror. They have the OS on them.
Have the same server with 3 72gig scsi hard drives. they are raid-5. Working fine. data bank.
one of the 36 gig drives failed and it broke the mirror. I went into the SCSI utility and checked the data. One of the hard drives has bad blocks. after rebooting form this, I got a blue screen (can't access boot device)
I unplugged the drive 0 from the scsi cable and by default, the other 36 gig drive moved to Drive 0. The system then booted using the one drive.
So I am in good shape..
Now I want to replace that hard drive. is it just as simple as adding the new drive in the place of the old one or should I move the drive that works up the cable to the drive that I took out and put the brand new drive in the place of drive 1. Then re mirror the drives?
Just looking for best pratice with no data loss.
after taking the advise of the expert before, this issue isn't resloved.
I need to hook a new SCSI drive back up to the cable and re mirror the dirves. I rotated the drives through. The failed drive (0) was removed and the mirror drive (1) was moved up the calbe and placed in the position that drive (0) was in. This didn't work. So I moved it back and it works fine. I try to add the new drive in the drive(0) and the system doesn't boot. I went in and modified the ARC statment to have the system look at the drive(1) for the OS. no go. the system works but only if I leave the mirror drive in the origianl spot. I can't seem to add another hard drive to the cable . when I do, the system always goes to this hard drive for the OS and it is a new drive. there isn't anything on this drive yet...
what am I missing??
Please post in english.. keep it simple and don't refer me to 20 different links to read. Just need some things to try..