We're using the following layout:
Allocate the following disks to the Linux guest:
* 124 cylinders minimum as device num 391, used as /boot
* 10016 cylinders minimum as device num 392, used as vg_system.
* 10016 cylinders minimum as device num 393, used as vg_local
* ?? cylinders as device numbers 394+, used as vg_app, vg_dbXXXX, etc.
as required by app
During the Linux install, allocate the disk as follows:
* /dev/dasda1 (391) as /boot
* /dev/dasdb1 (392) as LVM vg_system
o / - 2.0 gb
o /var - 2.5 gb
o /tmp - 500 mb
o swap - 1 gb
* /dev/dasdc1 (393) as LVM vg_local
o /home - 2 gb
o /opt - 5.4 gb
This provides us with a minimal /boot outside of LVM, isolates /var and /tmp
from the root file system, and places /home and /opt on its own disk.
This leaves us with a disk usage after install somewhat like the following:
[EMAIL PROTECTED]:~> df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/vg_system-lv_root
2890692 2074908 668944 76% /
udev 509860 104 509756 1% /dev
/dev/dasda1 87076 16544 66040 21% /boot
/dev/mapper/vg_local-lv_home
2064208 95864 1863488 5% /home
/dev/mapper/vg_local-lv_opt
4954828 595096 4108036 13% /opt
/dev/mapper/vg_system-lv_tmp
495944 110616 359728 24% /tmp
/dev/mapper/vg_system-lv_var
2580272 216860 2232340 9% /var
[EMAIL PROTECTED]:~>
Hope this helps...
--
Robert P. Nix Mayo Foundation .~.
RO-OE-5-55 200 First Street SW /V\
507-284-0844 Rochester, MN 55905 /( )\
----- ^^-^^
"In theory, theory and practice are the same, but
in practice, theory and practice are different."
On 4/8/08 10:31 AM, "Adam Thornton" <[EMAIL PROTECTED]> wrote:
> On Apr 8, 2008, at 9:45 AM, Romanowski, John (OFT) wrote:
>
>> can't you make partition1 dasda1 /boot and partition2 dasda2 the PV
>> for
>> LVM?
>
> Sub-partitioning DASD on zSeries is really not a very good idea.
>
> If you're running under VM, you've already GOT virtualized disk.
>
> Make /dev/dasda a small /boot parition (so, only give it 80 cylinders
> or something) and make /dev/dasdb a bigger volume which you can make
> into an LVM PV if you want to.
>
> Adam
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