Question

Howto Add A New Harddisk to a working Raid 1 Enviornment

Asked by: gpnair01

hi

We have a IBM 3450 Server Running SBS 2003
It Is configured RAID 1 With 2 hard disk with IBM ServeRAID 8K/8k-l Controller.
When i pluged one more hard disk to this enviornment ,
It did not work?
Its not Detecting ?
Is there any Raid Setting needed for that?




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Asked On
2008-05-25 at 08:51:08ID23431313
Tags

IBM

,

IBM ServeRAID 8K/8k-l Controller

,

IBM 3450

,

Raid 1(2 150 GB Hard disk)

Topics

Backup & Restore Software

,

SBS Small Business Server

,

Hard Drives & Storage

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: rindiPosted on 2008-05-25 at 09:37:36ID: 21643106

Raid 1 only uses 2 disks per array. If you want to add a 3rd disk, you might be able to use it as a hot spare (if one of the other disks breaks it'll take over from that disk). To be able to use that disk you would have to connect it to a non-raid controller, or then your raid controller would have to be configurable to uses one disk in it's own "array". This can't be done with many controllers. A 3rd option would be to get another disk and create an additional raid 1 array.

 

by: plug1Posted on 2008-05-26 at 06:33:27ID: 21646374

Given that you are using raid 1 then you cant expand this array. You need to do a full system backup, delete the array then recreate  it (including the new disk) and restore from the backup.

Not the easy job you were hoping for Id imagine.

20120131-EE-VQP-002

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