Re: Replace Disk Unit Under Parity Protection

[DrFranken <midrange@xxxxxxxxxxxx>]

I'm just guessing since I've have never done this before but the steps 
would in theory (a perfect world) look like this:

While the system is up and running enter Service Tools: STRSST

IN Service tools select Work with DIsk Units.
    Select Display DIsk COnfiguration
    Select Display device Parity Status
    Locate the drive that says: FAILED

    Write the resource Name Here: ___________

Exit back to the Service Tools main menu

    Start a Service Tool
    Hardware Service manager
    Device COncurrent Maintenance
    Enter the resource name from above in the "Device Resource Name" 
space, selection "1" Remove Device, Press Enter. (*)
    Look for the LBL above the Drive to blink and when it starts, pull 
out the dead guy.
    Once the screen displays "Action Completed" Press F12 to return to 
the Concurrent Maintenance Screen
    Change the 1 to a 2 (Install device), Press Enter
    Look for the LBL above the MT slot to blink and when it starts, 
lock in the new drive.

Exit back to the Service Tools main menu.

    (Don't be in a hurry to get here, the system needs to recognize the 
new drive.... takes a minute)
    Work with Disk Units
    Work with Disk Unit Recovery
    Rebuild disk unit data
    Select the unit to rebuild (there better be just one. :-)  )
    Proceed through any confirmation prompts.
    Press F5 occasionally, watch until it hits 100%

Return to your regularly scheduled OS/400.

(*) If you get an error that says: "YOU cant do this you have no 
eligible hardware" then your 270 didn't have concurrently maintainable 
disk cans. That would suck.

    - Larry "DrFranken" Bolhuis

P.S.  LBL = Little Blinky Light.

On 2/20/2012 6:29 PM, Scott Klement wrote:
> Thanks, Jerry... it's not the load source unit.
>
>   From what I've been reading (from the links that Rob sent) it looks
> like I should be able to IPL without the failed unit... I'm wondering
> now why it won't IPL without it...  hmmm...
>
>
> On 2/20/2012 3:44 PM, Jerry Draper wrote:
> > 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.