[KLUG Members] any experience with Debian Sarge & Dell 39160 SCSI controller?

Richard Harding rick at ricksweb.info
Sat Sep 3 18:29:37 EDT 2005


On Sat, 2005-09-03 at 18:18 -0400, Michael Lueck wrote:
> On Sat, 03 Sep 2005 18:03:50 -0400, Mike Williams wrote:
> 
> >As far as buying a new disk and turning a 3-drive RAID 5 into a 4-drive 
> >RAID 5, I'm not sure that's possible.
> 
> Assuming LVM is the same on Linux has IBM implemented it in OS/2 4.5, then
> adding a new drive to RAID 5 is a hot operation and a snap.
> 
> 1) Add drive to hot-swap hardware
> 2) Use RAID management software to add the new drive to the existing array
> 3) Use LVM to create a new partition with the free space it then sees in the
> array
> 4) Assign the new partition to be a component of the existing logical drive
> 5) df at the command line and see your new disk space
> 
I'm hoping that is how it works. Since I have a hot-swap drive I think I
setup and test it by setting up the 3 drive RAID 5 and then add the
hot-swap as a new drive. Then tear it down and make sure that the
hot-swap works out fine and doesn't mess up the LVM storage groups. 

Rick



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