In article <df276e$409$1@windu.dotsch.de>, Lars Bausch wrote:
> Hello !
>
> Ulrich Windl wrote:
>> I have experience with HP-UX and its disk management, and I have experience
>> with MS-DOS like disk management (including Linux, of course). For the
>> Itanium Integrity servers however there seem to be MS-DOS like partitions with
>> UNIX-like nomenclature and tools.
> So far I know is on the IA64 one partition for the EFI (Bootloader), one
> for the firmware, and a other partition for HPUX.

And this cannot be changed?

>> I'm having problems with this, because it's neither meat (HP-UX) nor fish
>> (DOS). Setting up HP-UX on the Itanium gives me some problems: Can I have two
>> VGs on one large disk by creating two partitions that LVM will use? Is there
> No. A disk (PV) under LVM can only be only in one Volume group.

I think the definition of PV may be relevant here. I mean, the
bootloader and firmware areas aren't part of the PV, are they?

Would "disk slice" be a better term?

If you use, say, fdisk on Linux, to modify the disk partition table, can
you get two half-disk PVs even in HP-UX?

(Just to clarify: in Linux's LVM, you can. There you can define any
device, be it a whole-disk device or a slice, as the PV. And mirroring
is done by putting the PV on a metadevice that handles the mirroring -
or RAID5... Of course, Linux's LVM isn't supposed to be anything like
HP-UX's on the inside anyway, either.)

>> "Partitions" are something very different there)
> Have you looked at docs.hp.com or itrc.hp.com ?

I don't think they have much left on the relevant kind of partitions on
HP-UX ... (never seen a hard-partitioned disk on HP-UX myself but I've
read about it in an old manual.)

>> (I know what the disadvantages of two VGs on one disk are, but I'm hoping that
>> Ignite-UX' recovery tapes will be able to restore just that (system) partition
>> on the disk without touching the other VG (application data). Would it work?)
> No, because two VGs on one PV it is not posible. Or do you mean, if the
> EFI will be restored by ignite ?
> Can you please explain more detailed, what you mean.

I think he's trying to do it the Linux way, with PVs on slices instead
of on the whole disk.

Depends on how the disk handling is done there.

I haven't gotten my hands on an IA-64 box at all yet, but might in the
near future... and this does seem like a sensible question to me.


--
Mikko Nahkola <mnahkola@trein.ntc.nokia.com>
#include <disclaimer.h>
#Not speaking for my employer. No warranty. YMMV.