>>> On Thu, Jun 21, 2007 at  8:26 AM, in message
<[EMAIL PROTECTED]>,
Susan Zimmerman <[EMAIL PROTECTED]> wrote: 
-snip-
> Please bear with me (this is still very new to me), but do you put
> your file systems on their own minidisks and then group them together as
> one logical volume?  Since the file systems will be R/O, is there any harm

No.  When you go through the install process, you create 1, 2, or 3 partitions 
on any given DASD volume (or minidisk), and then either assign that partition 
to become a file system, or an LVM PV (physical volume).  If you're going to 
assign an entire volume to LVM, you only need to create one partition.  Once 
you have all your PVs assigned to LVM, then you start creating your LVs 
(logical volumes).  The space for these will be carved out of the pool you've 
given LVM.  You tell it how much you want for each LV, what file system to put 
on it, etc.

> in placing these into an LVM (in the basevol/guestvol scheme)?
> Is there a way to easily determine the amount to allocate to each file
> system?

I don't know if having an LV R/O is an issue or not.  I suspect not, but will 
be interested in hearing your results.

They way I've always determined how much space was needed for what file systems 
was to lump everything into one big file system (just as the cookbooks 
describe), and then use the "du -csm" command to see how much space was used.  
Then, go back and do the install again.  If you use the graphical installer, 
when you're in the package selection part of the process, it gives you a little 
window with how much space has been allocated to a particular file system, and 
how much is in use.  It also color codes the graphs so you can tell at a glance 
if you're getting tight on space, or don't have enough.  You can then go back 
to the partitioning dialog and adjust things there.

It only really works with SLES10, but you might want to use the AutoYaST script 
I posted recently, to get you started.  More than likely you'll want to then go 
and add a second (third, fourth, etc.) DASD volume to the LVM pool (or create a 
separate one for your application stuff), and parcel the space out as you think 
necessary.  I'm not sure how well, or poorly, the basevol/guestvol scheme will 
work with SLES10, but I would think it would be fine.


Mark Post

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