[KLUG Members] Moving a HDD

[Phillip Hofmeister]

On Mon, 16 Aug 2004 at 03:40:08PM -0400, Michael Lueck wrote:
> I added an additional drive to a RAID 5 array once. The free space showed up as
> if it were a new hard drive to LVM, I defined a volume for the free space, then
> added that volume to an existing one and had additional space without an IPL.

Wow...an IPL... a term I have not heard in a while (since my days of
working with the mainframe at Dow...)

> So even though the box was RAID 5, it looked like to separate arrays / disks on
> the same set of hard drives, and then up at LVM level it merged the two into a
> single mount point for the OS it see.

That is how it works.  Doing LVM without the layer of RAID Redundancy
(IMHO) is a mistake.

> Quite good when you drop 150GB of DASD into a small office that currently had
> 9GB in their old server and you have no clue what you might like to do down the
> road.

It is also important you don't over spend on your IT.  It is a horrible
thing to sink $1000 into a 150 GB Disk Array/LVM, only to find out
you'll never use more than 10/20 GB of it and the hardware you bought
will be very depreciated in 18 months.

Take care,

-- 
Phillip Hofmeister