| There may be a time when we want to temporarily turn off Virtual Partition functionality. What I mean by this is to return a server/n-Par to run pure HP-UX without vpmon being loaded and giving the server/n-Par access to all of its available hardware. It may be that we have an urgent need to have access to the complete compliment of CPU and memory in order to perform some critical processing. The steps I am going to outline do not uninstall Virtual Partitions but simply turns off the functionality temporarily. First, we changed the default boot string on the boot disk for the server/nPar:
root @uksd3 # parstatus -w The local partition number is 2. root @uksd3 # parstatus -Vp 2 [Partition] Partition Number : 2 Partition Name : uksd3 Status : active IP address : 0.0.0.0 Primary Boot Path : 2/0/1/0/0.0.0 Alternate Boot Path : 2/0/4/0/0.8.0 HA Alternate Boot Path : 2/0/4/0/0.8.0 PDC Revision : 35.4 IODCH Version : 5C70 CPU Speed : 552 MHz Core Cell : cab0,cell2 [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,cell2 active core 4/0/4 4.0/ 0.0 cab0,bay1,chassis1 yes yes 2 [Chassis] Core Connected Par Hardware Location Usage IO To Num =================== ============ ==== ========== === cab0,bay1,chassis1 active yes cab0,cell2 2 root @uksd3 # root @uksd3 # lifcp /dev/rdsk/c0t0d0:AUTO - hpux /stand/vpmon -a root @uksd3 # root @uksd3 # mkboot -a "hpux" /dev/rdsk/c0t0d0 root @uksd3 # root @uksd3 # lifcp /dev/rdsk/c0t0d0:AUTO - hpux root @uksd3 #
We are now in a position to reboot vpmon . Once we reboot the server/n-Par, the AUTO file will load pure HP-UX.
root @uksd3 # shutdown -h now SHUTDOWN PROGRAM 11/07/03 05:40:18 GMT Broadcast Message from root (console) Fri Nov 7 05:40:19... SYSTEM BEING BROUGHT DOWN NOW ! ! ! ... *** FINAL System shutdown message from root@uksd3 *** System going down IMMEDIATELY System shutdown time has arrived [MON] [MON] vPar0 has halted. MON> MON> reboot Firmware Version 35.4 Duplex Console IO Dependent Code (IODC) revision 1 -------------------------------------------------------------------------- (c) Copyright 1995-2002, Hewlett-Packard Company, All rights reserved -------------------------------------------------------------------------- Cab/ Cell ------- Processor -------- Cache Size Cell Slot State # Speed State Inst Data ---- ---- ------------ --- -------- ----------- ------ ------ 2 0/2 Active 0 552 MHz Active 512 KB 1 MB 1 552 MHz Idle 512 KB 1 MB 2 552 MHz Idle 512 KB 1 MB 3 552 MHz Idle 512 KB 1 MB Primary Boot Path: 2/0/1/0/0.0 Boot Actions: Boot from this path. If unsuccessful, go to next path. HA Alternate Boot Path: 2/0/4/0/0.8 Boot Actions: Boot from this path. If unsuccessful, go to BCH. Alternate Boot Path: 2/0/4/0/0.8 Boot Actions: Skip this path. Go to BCH. Console Path: 2/0/0/0/0.0 Attempting to boot using the primary path. ------------------------------------------------------------- To discontinue, press any key within 10 seconds. 10 seconds expired. Proceeding... Initializing boot Device. Boot IO Dependent Code (IODC) Revision 0 Boot Path Initialized. HARD Booted. ISL Revision A.00.43 Apr 12, 2000 ISL booting hpux Boot : disk(2/0/1/0/0.0.0.0.0.0.0;0)/stand/vmunix 10125312 + 1949784 + 1347720 start 0x81d7868 ... root @uksd3 # vparstatus vparstatus: Warning: Virtual partition monitor not running, Requested resources shown. [Virtual Partition] Boot Virtual Partition Name State Attributes Kernel Path Opts ============================== ===== ========== ========================= ===== vPar0 N/A Dyn,Auto /stand/vmunix [Virtual Partition Resource Summary] CPU Num Memory (MB) CPU Bound/ IO # Ranges/ Virtual Partition Name Min/Max Unbound devs Total MB Total MB ============================== ================ ==== ==================== vPar0 1/ 5 1 2 9 0/ 0 2048 root @uksd3 # root @uksd3 # ll /stand/vp* -rw------- 1 root root 4136 Nov 7 05:36 /stand/vpdb -r-xr-xr-x 1 bin bin 1062320 Jun 27 2002 /stand/vpmon -rw------- 1 root root 17813008 Nov 6 01:50 /stand/vpmon.dmp root @uksd3 #
As we can see, Virtual Partitions functionality has been temporarily turned off . To reinstate it, we would simply reinstate the AUTO file to include the boot string " hpux /stand/vpmon “a " and reboot the server/n-Par. It should be noted that while the server/n-Par has access to its full compliment of hardware, there is nothing stopping an administrator from accessing the data on the disks that belonged to a previous vPar. | 