Re: Reallocate storage

[rob@xxxxxxxxx]

Moving disks will be involved UNLESS, as another poster suggested, you are 
guesting lpars.

Want to see?  do a WRKHDWRSC *STG  You may see something like the 
following:
Resource        Type-model  Status                Text 
CMB02            268C-001   Operational           Storage Controller
  DC02           6B02-001   Operational           Storage Controller
CMB04            576B-001   Operational           Storage Controller
  DC04           576B-001   Operational           Storage Controller
  TAPMLB02       3576-05B   Operational           Tape Library 
  TAPMLB04       3576-05B   Operational           Tape Library 
CMB13            575C-001   Operational           Storage Controller
  DC03           575C-001   Operational           Storage Controller
CMB14            575C-001   Operational           Storage Controller
  DC06           575C-001   Operational           Storage Controller
CMB15            575C-001   Operational           Storage Controller
  DC09           575C-001   Operational           Storage Controller
CMB16            572F-001   Operational           Storage Controller
  DC10           572F-001   Operational           Storage Controller
...
Yours will differ.  If I go all the way down to DC10 and use 9=Work with 
resource I can see that it has 4 disk drives. 
Resource        Type-model  Status                Text 
DC10             572F-001   Operational           Storage Controller
  DD081          58B0-109   Operational           Disk Unit 
  DD082          58B0-109   Operational           Disk Unit 
  DD083          58B0-109   Operational           Disk Unit 
  DD084          58B0-109   Operational           Disk Unit 
  D05            509A-001   Operational           Device Services 
  D04            509A-001   Operational           Device Services 
If I go back up to the CMB16 just above it I see they are controlled by 
this card 572F-001, in this slot U789D.001.DQDZZHD-P1-C4.
On your other lpar you will see those disk drives are controlled by a 
different card in a different slot.

UNLESS!! you are guesting.

I have a "host" lpar called MAIL3.  It has two guests:  GDI, GDWEB3.  On 
MAIL3 if I do a WRKNWSSTG I will see:
Name        Text                    Size 
GDISTG01    GDI lpar                250003
GDISTG02    GDI lpar                100006
GDWEB301    GDWEB3 - INTERNOTES3    300002
I created two "disks" for GDI and one for GDWEB3.  MAIL3 has 12 arms, now 
shared by all three lpars.  I do not have to have a separate disk 
controller card and raid card for each lpar.
On GDI if I do a WRKHDWRSC *STG there's two disk drives and two optical 
drives.
Resource        Type-mode
DC01             290A-001
  DD001          6B22-050
  DD002          6B22-050
  OPT01          632C-002
  OPT02          632C-002
WRKDSKSTS on GDI will show
               Size    % 
Unit  Type      (M)  Used
   1  6B22   233020  36.9
   2  6B22    93212  40.8

In theory I could delete objects on GDI to free space.  Do a STRASPBAL 
*ENDALC on unit 2, some other mumbo jumbo to free it up and delete it. 
Giving me back some space on MAIL3.  I would get the space back as soon as 
I safely deconfigured it from GDWEB3 and did a DLTNWSSTG on MAIL3.

Guesting can save you some serious cash.

Think of the consultant who could go to a customer and simply do a RST to 
get one item from /QFPNWSSTG restored, do some steps on the HMC and a 
couple of commands on their existing i, and have a fully functional lpar 
cranking without all of those pesky steps from the GO RESTORE menu.

Rob Berendt