RAID 1 anomaly

Discussion:

RAID 1 anomaly

Barry R Cisna

2012-09-09 14:13:14 UTC

Hello ALl,

Looks like not much activity for quite some time here...
I have a question for the grizzled network admins.
We have an old Windows 2000 server (that runs some VERY old typing
programs) that one of the two hard drives died that i configured in a
Hardware RAID 1 /Stripped arrangement. The drive simply would not
'park',,,click,,click,,click,,,on boot. OK,so i find another same
capacity hard drive in the cast off pile ,that i swapped the circuit
board,off of,,onto the clicking hard drive.This fixes the 'parking
problem,and the drive is now recognized in the bios once again.

Problem: Now the same hard drive ( with diffrent circuit board) is being
seen as an 'foreign drive' in the RAID array ( FastTrack100).
Is there any way to make this same drive with different circuit board/
serial number,,fit into the original array?
I hate the thoughts of having to reformat this server beings it's an
very antiqaited piece anyway

Thank you,
Barry

Burke Almquist

2012-09-09 15:36:33 UTC

Permalink

You said it's striping, so is it RAID 0 or RAID 1?

Post by Barry R Cisna
Hello ALl,
Looks like not much activity for quite some time here...
I have a question for the grizzled network admins.
We have an old Windows 2000 server (that runs some VERY old typing
programs) that one of the two hard drives died that i configured in a
Hardware RAID 1 /Stripped arrangement. The drive simply would not
'park',,,click,,click,,click,,,on boot. OK,so i find another same
capacity hard drive in the cast off pile ,that i swapped the circuit
board,off of,,onto the clicking hard drive.This fixes the 'parking
problem,and the drive is now recognized in the bios once again.
Problem: Now the same hard drive ( with diffrent circuit board) is being
seen as an 'foreign drive' in the RAID array ( FastTrack100).
Is there any way to make this same drive with different circuit board/
serial number,,fit into the original array?
I hate the thoughts of having to reformat this server beings it's an
very antiqaited piece anyway
Thank you,
Barry
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Les Mikesell

2012-09-09 16:06:28 UTC

Permalink

Post by Burke Almquist
You said it's striping, so is it RAID 0 or RAID 1?

--
Les Mikesell
***@gmail.com

Andrew Fisk

2012-09-10 00:25:18 UTC

Permalink

Win 2000, just install the new drive, format and mirror using the disk tool in computer admin.

Thanks

Andy
Spitfire Computer Services
406 Beaver Street
Sewickley, PA 15143
Phone (412) 254-4727
***@spitcomp.com
www.spitcomp.com

Post by Les Mikesell

Post by Burke Almquist
You said it's striping, so is it RAID 0 or RAID 1?

If it is raid1 (mirrors), you just make matching (or larger)
partitions and 'mdadmin --add /dev/md? /dev/sd?' with the array and
partition names. If it is raid0 (striped) you lose the data if any
drive breaks.
--
Les Mikesell
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Jim Kinney

2012-09-09 21:38:10 UTC

Permalink

You will need to intialize the drive into the hardware raid array.
They are all different but basically you need to mark the old drive as
bad, remove it, and let this be the replacement.

hardware raid of the win2k era (error?) is mostly braindead so you may
be out of luck. As most schools don't have backups for anything but
the stuff used by the top-most brass, restore is unlikely.

I fell in love with software raid when a controller card died and the
new card auto-initialized the array drives thus dumping everything. I
use software raid as a backup tool for the hard drive - one drive in a
2 (or 3) drive RAID 1 is a removable. I turn it down, pop it out and
swap in the next drive. A few hours later I have a full backup.

--
--
James P. Kinney III

Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain

http://electjimkinney.org
http://heretothereideas.blogspot.com/

b***@thealmquists.net

2012-09-09 21:41:22 UTC

Permalink

The problem is that this is a hardware array. This is why I hate using hardware raid. Especially for raid 1 or 0. It doesn't help that much.

Post by Les Mikesell

Post by Burke Almquist
You said it's striping, so is it RAID 0 or RAID 1?

Barry Cisna

2012-09-10 12:04:34 UTC

Permalink

Hello All,

I'm very sorry.I was braindead when i typed up my initial post.
This setup is in fact RAID 0 (Stripped).
Even with a new circuit board on the drive that wouldn't park,,,and now
does park as expected the data is still on the drive.
I am today going to try and remove the shot serial number in the
HARDWARE RAID array and try and add (the same drive with a different
serial number/circuit board).

As others have mentioned the way to go now is (usually) software raid.
Keep in mind back in Windows 2000 days I am not sure software raid was
even conceived at that time? Or at least it never worked as expected to.
I have never run into the scenario I am dealing with.
It is good to see there are still some active members on this K12LTSP
list!

Take Care,
Barry