Saturday, May 17, 2014

IQ ----hpux-vpars and vg activation mode


1) how you enter into vpar maintaince mode?

A:- A:- For example, if the partition winona2 is down, to boot winona2 into maintenance mode:
From MON> From the monitor prompt:
MON> vparload -p winona2 -o "-lm"

2)what is the min mem/cpu req for vpar creation?
vPars allows the system administrator to create independent HP-UX operating environments from
hardware resources in a system or hard partition. Each of the HP-UX operating environments can be
tuned specifically for the applications that will be hosted.

A vPar is composed of one or more CPU’s, memory, and I/O devices for mass storage and
networking. The minimum amount of memory necessary to boot a vPar is based on the minimum
required by the operating system version (HP-UX 11i v1 requires 128 MB minimum but 256 MB is
recommended and HP-UX 11i v2 requires a minimum of 1 GB).

5) what are the various activation mode of vg  -a -c -e exclusive.

Perform the following command from all nodes in the cluster to remove the cluster
flag from cluster lock VG(s).
# vgchange –c n <VG>
• Activate cluster lock VG(s) on one node only:
# vgchange –a y <VG>

Volume Group Activation Modes
·         Standard Volume Groups Activation                              # vgchange –a y VGName
·         Standard Volume Groups Deactiviation                          # vgchange –a n VGName
·         Exclusive Volume Group Activation                                 # vgchange –a e VGName
·         Exclusive Volume Group Deactivation                             # vgchange –a n VGName
·         Shared mode activation                                                 # vgchange –a s VGName

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