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20050408: LDM - Partitioning for LDM/GEMPAK
- Subject: 20050408: LDM - Partitioning for LDM/GEMPAK
- Date: Fri, 08 Apr 2005 11:21:59 -0600
Darren,
> To: address@hidden
> From: "Darren Addy" <address@hidden>
> Subject: LDM - Partitioning for LDM/GEMPAK
> Organization: UCAR/Unidata
> Keywords: 200504081521.j38FLof2000743
The above message contained the following:
> Institution: University of Nebraska at Kearney / I.T. Services
> Package Version: 6.3
> Operating System: Red Hat Enterprise AS v.4
> Hardware Information: 733Mhz PIII, 200G HD & 10G HD
> Inquiry: I'm intending to set up a little wxserver with LDM, GEMPAK
> and maybe Mapserver. I'm starting with a format/fresh install of Red
> Hat. My question is regarding partitions for best performance.
>
> My primary HD is a 200G. I've left the original 10G HD in to use as
> Linux /swap. Originally, I created a 10G partition for "/" and the
> remainder for /home (thinking that was where most of space would be
> used).
>
> Going through the LDM Preinstallation however, it appears that the LDM
> data and logs go in /var (/var/data/ldm).
Because the data and logfiles are very volatile, they should go into a
disk partition that is NOT backed-up. The partition should also be on
local disk. These are the major constraints. If you're not backing-up
anything and all disks are local, then you can put them wherever you
like.
> I'm wondering if you have an recommendations on how to partition the
> HD for best performance, allowing the most space for the portions of
> the filesystem that will need it. (Although I'm working on LDM at the
> moment, I will be doing GEMPAK next).
I'll defer to our systems administrator regarding partitioning.
Mike?
> Also, while I am asking questions - is there a good list of how much
> bandwidth the various IDD data streams will use?
You can get a good idea of the data rates by visiting the rtstats(1)
webpage for a top-level IDD relay site. We usually use this one:
http://my.unidata.ucar.edu/cgi-bin/rtstats/rtstats_summary_volume?thelma.ucar.edu
> Thanks for your assistance and in making these products and support
> available to the university community!
You're most welcome.
> Darren Addy
> University of Nebraska at Kearney
Regards,
Steve Emmerson
LDM Developer
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