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UDFS is user-defined file system. You use CRTUDFS to create one. This creates what is called a block special file under /dev/QASPxx. Then you mount the UDFS on an existing directory in the IFS. You have several options, including case-sensitivity. Then use it just like anything else in the IFS - completely transparent.

This is the only way i know to put IFS objects into an ASP other than the system ASP. It is completely local. Of course, some storage devices (IBM DS6800, IIRC) can be attached to an iSeries and look just like local DASD. These could be put into ASP 2 or whatever. Then you could put a UDFS there, and anything you put in that location ends up on the storage device, not the internal DASD. Of course, I have heard that external storage from IBM is much more expensive than putting more disk in a sidecar. So it is not recommended to use external storage if the only machines that need it are iSeries.

As usual, look at the help in CRTUDFS and MOUNT. Do a GO CMDUDFS for starters, as well.

HTH
Vern

At 07:14 AM 8/17/2005, you wrote:

Slower compared to what?
- Yes I believe that IFS for NetServer than a dedicated wintel server.
Heck, I've moved data from NetServer to an IPCS card in the same iSeries
and got better performance.

I've really naive on UDFS.  Is that a SAN solution, or some way of piping
an IFS directory to another platform, such as a unix box?


Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





msmith6@xxxxxxxxxxxx
Sent by: midrange-l-bounces@xxxxxxxxxxxx
08/17/2005 06:56 AM
Please respond to
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>


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Subject
Domini on iSeries and UDFS






Thanks,
  I was planning to do that also.  I just figured that this is more of
an iSeries OS question and not so much of a Notes thing.  I haven't
used UDFSs before and didn't know if there was more processing to get
the location of the file than a regular file in the IFS that resides
in the system ASP.
  When ever I deal with things in the IFS, or I should say, the non
OS/400 parts, it seems to be slightly slower.  So, if anyone has used
UDFSs and want to share their experience and usage that would be great.


date: Tue, 16 Aug 2005 17:16:14 -0500
from: rob@xxxxxxxxx
subject: Re: Domino on iSeries and UDFS

You might want to try the domino400 list.

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com
>>
>>
msmith6@xxxxxxxxxxxx
Sent by: midrange-l-bounces@xxxxxxxxxxxx
08/16/2005 01:28 PM
Please respond to
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
To
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Subject
Domino on iSeries and UDFS
>
Hi,
I run a couple of Domino servers (V6) on my iSeries (V5R2) and they
work great.  I've noticed over the last six months or so that my
system ASP is getting a little high due to the amount of email people
have.  Seems hard to get people to delete email and even harder for
someone to agree on a retention policy.  Anyway, I was looking to
create another ASP, ASP2, and create a UDFS there.  I would move
everything that is under /lotus, which is off the root, to that UDFS
and mount it at IPL.
  I was wondering if anyone has done this and if they ran into any
gotchas.  Any concern about performance other than disk contention
from under sizing the drives in the ASP?

Any thought or experience on this would be great.

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