Redhat 9.0 Rebuild raid 5 array

[Reuben D. Budiardja]

On Monday 11 October 2004 08:27, Mark Farmer wrote:
> Brian McGrew wrote:
> > I've got the following:
> >
> > Personalities : [raid1] [raid5]
> > read_ahead 1024 sectors
> > md2 : active raid5 hde1[0] hdf1[1] hdg1[2](F) hdh1[3]
> >       468864768 blocks level 5, 64k chunk, algorithm 0 [4/3] [UU_U]
> >

I've got similar problem (and it's interesting that it's not covered in 
Software RAID Howto).

>
> raidhotremove will allow you to remove the failed disk
> raidhotadd will put the new disk into the array.
>
> If I remember correctly, the array will rebuild itself once the new disk is
> added.

But do I need to format the harddrive file with fdisk before doing raidhotadd 
or anything like that ? or can I just plug in a new harddrive directly from 
the factory to the machine? 
If I do "fdisk /dev/hde1" and list the partiton (where hde1 is part of md0), I 
see that the partiton type is "Linux RAID autodetect". So I don't know if 
"raidhotadd' will take care of this or what (ie. creating and formating 
partition).

Thanks.

RDB

-- 
Reuben D. Budiardja
Dept. Physics and Astronomy
University of Tennesse, Knoxville, TN

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