Hi there folks
Apologies in advance if this is a goofy question.
I have a server (HP DL) with a single disk hanging off a non-raid scsi adapter.
What I would like to do, with the additon of another disk the same size as the existing disk, is create a RAID 1 array on another server which has (obviously) a raid controller.
Now, I suspect the common response to this query is ‘you can’t create a raid 1 array using an existing disk without losing the existing os/data’.
However, I am certain in a dark and distant part of my career that I witnessed someone do that very thing – though unfortunately I don’t know how it was done, nor can I remember the server hardware make.
Having google’d, it seems that some raid controllers store the raid data in a chip on the raid card as opposed to on the disk, so the disk doesn’t need to be over-written when the raid array is created.
And that somehow it is possible to take an existing disk, create a degraded raid 0 array, which doesn’t affect the data at all on the disk, and then ‘morph’ the raid 0 into a raid 1 array, with the additon of another disk.
As I say, I am certain I have seen an existing disk being used in a new raid 1 array on another server without the data being affected.
Can anyone advise if they succeeded at this before?
Thanks in advance
You must be logged in to reply to this topic.
Create a free account today to participate in forum conversations, comment on posts and more.