AIX5.2在哪里设置PP(物理分区)的大小？

paza

我的系统设置的是128M，但是不知道用什么命令设置，请高手指教。谢谢。

vitovito

rootvg是系统分的，其他的vg在建vg的时候可以指定

4nai

[quote]原帖由 "vitovito"]rootvg是系统分的，其他的vg在建vg的时候可以指定[/quote 发表：


要是在vg创建好后再想改有办法吗？不能重做．

paza

[quote]原帖由 "vitovito"]rootvg是系统分的，其他的vg在建vg的时候可以指定[/quote 发表：


谢谢。知道了。

houwd

We cannot change the physical partition size in the volume group, but we can
change the number of physical partitions in a VG. So, if we increase the
physical partitions, the customer could add a bigger disk to the XXXXvg
VG. Use the chvg -t command to change the number of PPs. The command
will look like this:
# chvg -t2 XXXXvg
For the -t option, the number two (2) is a multiplier for the number of physical
partitions; in our example, -t2 will allow 2032 PPs (1016*2) per PV.
Doing this change, a bigger disk of our customer can be added to the
XXXXvg VG.

Remember: If you increase the number of PPs per PV with the -t option, the
number of maximum disks per VG is decreased.

You can increase or decrease the number of physical partitions online, but keep
in mind that if you are going to change the number of PPs, the number of total
disks per volume group will be decreased. That means that a volume group has a
fixed number of physical partitions. For a normal volume group, this value is
32512. For a Big volume group, the value is 130048. The following list shows how these
values can be changed.
Number of disks --Maximum number of PPs/disk
32                      --1016
16                      --2032
8                        --4064
4                        --8128
2                        --16256
1                        --32512