wha tis procedure to migrate cell on ia64 hp superdome server SD64A

[singh sanjeev]

Hello HPUX GURUS!!!

we are planning to migrate the  cell 0 from cab1 to cab0 . it has two npar in superdome. As it us a core cell, i am little worry whether this possible or not.. if possible can someone please let me know the procedure.

$ parstatus -w
The local partition number is 1.
[root@hpx160:/.root]
$ parstatus
Note: No action specified. Default behavior is display all.
[Complex]
   Complex Name : hpxsd2
   Complex Capacity
     Compute Cabinet (8 cell capable) : 2
   Active MP Location : cabinet 0
   Original Product Name : superdome server SD64A
   Original Serial Number : DEH452446Y
   Current Product Order Number : A5201A
   OEM Manufacturer :
   Complex Profile Revision : 1.0
   The total number of partitions present : 2


[Cabinet]
                  Cabinet   I/O       Bulk Power  Backplane
                  Blowers   Fans      Supplies    Power Boards
                  OK/       OK/       OK/         OK/
Cab               Failed/   Failed/   Failed/     Failed/
Num Cabinet Type  N Status  N Status  N Status    N Status       MP
=== ============  ========= ========= ==========  ============   ======
0   8 cell slot   4/0/N+    5/0/N+    6/0/N+      3/0/N+         Active
1   8 cell slot   4/0/N+    5/0/N+    6/0/N+      3/0/N+         -

Notes: N+ = There are one or more spare items (fans/power supplies).
       N  = The number of items meets but does not exceed the need.
       N- = There are insufficient items to meet the need.
       ?  = The adequacy of the cooling system/power supplies is unknown.
       HO = Housekeeping only; The power is in a standby state.
       NA = Not Applicable.


[Cell]
                        CPU     Memory                                Use
                        OK/     (GB)                          Core    On
Hardware   Actual       Deconf/ OK/                           Cell    Next Par
Location   Usage        Max     Deconf    Connected To        Capable Boot Num
========== ============ ======= ========= =================== ======= ==== ===
cab0,cell0 Active Core  4/0/4   28.0/0.0  cab0,bay1,chassis3  yes     yes  0
cab0,cell1 Active Base  4/0/4   26.0/0.0  -                   no      yes  0
cab0,cell2 Active Base  4/0/4   26.0/0.0  -                   no      yes  0
cab0,cell3 Active Base  4/0/4   24.0/0.0  -                   no      yes  0
cab0,cell4 Active Base  4/0/4   24.0/0.0  -                   no      yes  0
cab0,cell5 Active Base  4/0/4   24.0/0.0  -                   no      yes  0
cab0,cell6 Active Base  4/0/4   24.0/0.0  -                   no      yes  0
cab0,cell7 Active Base  4/0/4   24.0/0.0  -                   no      yes  0
cab1,cell0 Active Core  4/0/4   8.0/0.0   cab1,bay0,chassis1  yes     yes  1
cab1,cell1 Active Base  4/0/4   38.0/0.0  -                   no      yes  1
cab1,cell2 Active Base  4/0/4   38.0/0.0  -                   no      yes  1
cab1,cell3 Active Base  4/0/4   38.0/0.0  -                   no      yes  1
cab1,cell4 Active Base  4/0/4   38.0/0.0  -                   no      yes  1
cab1,cell5 Active Base  4/0/4   42.0/0.0  -                   no      yes  1
cab1,cell6 Active Base  4/0/4   64.0/0.0  cab1,bay1,chassis1  yes     yes  1
cab1,cell7 Absent       -       -         -                   -       -    -

Notes: * = Cell has no interleaved memory.


[Chassis]
                                 Core Connected  Par
Hardware Location   Usage        IO   To         Num
=================== ============ ==== ========== ===
cab0,bay0,chassis0  Absent       -    -          -
cab0,bay0,chassis1  Absent       -    -          -
cab0,bay0,chassis2  Absent       -    -          -
cab0,bay0,chassis3  Absent       -    -          -
cab0,bay1,chassis0  Absent       -    -          -
cab0,bay1,chassis1  Absent       -    -          -
cab0,bay1,chassis2  Absent       -    -          -
cab0,bay1,chassis3  Active       yes  cab0,cell0 0
cab1,bay0,chassis0  Absent       -    -          -
cab1,bay0,chassis1  Active       yes  cab1,cell0 1
cab1,bay0,chassis2  Absent       -    -          -
cab1,bay0,chassis3  Absent       -    -          -
cab1,bay1,chassis0  Absent       -    -          -
cab1,bay1,chassis1  Active       yes  cab1,cell6 1
cab1,bay1,chassis2  Absent       -    -          -
cab1,bay1,chassis3  Absent       -    -          -


[Partition]
Par              # of  # of I/O
Num Status       Cells Chassis  Core cell  Partition Name (first 30 chars)
=== ============ ===== ======== ========== ===============================
0   Active       8     1        cab0,cell0 hpx159 Shared prd SAP DB
1   Active       7     2        cab1,cell0 hpx160 Shared prd SAP AS

[Robert_Jewell]

From the output I see that already have a cell in cabinet 0, slot 0.  Did you mean you wanted to move the cell in cabinet 1, slot 0 to Partition 0 (as a resource)?

Given that, it is possible to move cells from one partition to another.  However, the affect this has on the source partition is what you need to be concerned about.

A "core cell" is simply a cell that has an attached IO Chassis and Core IO board and then has been designated as a core cell by the partition.  If you physically remove that cell, then you are disconnecting the attached IO Chassis.  If your partition is configured to handle the removal of that IO then you will be fine.  The Partition will use the next available cell that is attached to an IO Chassis and Core IO board and designate that as its core cell.   In your case this would be cab1/cell6.  If you did not have this, then you would not be able to perform this move.

-Bob

[singh sanjeev]

i am using below command to execute this change :

parstatus -w

parstatus -P

parstatus -AC

parmodify -p 1 -d 1/0

parstatus

parmodify -p 0 -a 1/0:::

parstatus

Reboot the server hpx159