Re: Replace Disk Unit Under Parity Protection

[Jerry Draper <midrangel@xxxxxxxxxxxxx>]

It may matter if it's load source because it sounds like when you remove 
the drive you can't IPL the system.

Since you are RAIDed theoretically you could do a hot swap of the drive 
using concurrent maintenance.  IBM should have decent instructions on 
how to do concurrent maintenance.

Meanwhile you can determine if the drive is load source by:

STRSST
1. Start a service tool
7. Hardware service manager
F6=Print configuration
F3=Exit
F3=Exit
Press Enter to continue ending SST.
WRKSPLF
5=Display (QPCSMPRT)
Page down until you see an * next to one of the disk drives; that's the 
load source.
DISK UNIT                  4327-074  *    68-0C82D73   DD001

Jerry



On 2/20/2012 1:15 PM, Scott Klement wrote:
> Hi Jerry,
>
> I'm not sure how to tell if it's the load source.  Google found one site
> that said that Unit 1 is the load source -- this disk is not Unit 1, so
> if I believe my Google result, that means it's not load source, right?
>
> On 2/20/2012 2:54 PM, Jerry Draper wrote:
> > Is the failed drive the load source?