From: Holger.VanKoll@SWISSCOM.COM
Date: Tue Nov 12 2002 - 07:32:21 EST
the (pointless) question is: is backup/delete/recreate/restore a change
to a filesystem?
seen technically, it isnt. so far pAG is right.
seen from user-perspective, it is. the files are still there and now
they can create large files. thats all users care about.
-----Original Message-----
From: Bill Thompson [mailto:bill.thompson@GOODYEAR.COM]
Sent: Tuesday, November 12, 2002 1:16 PM
To: aix-l@Princeton.EDU
Subject: Re: How to enable a large file system
pAG,
Did you read the original question and the entire response? They asked
how to change a filesystem to largefile enabled. They didn't ask how to
do it dynamically. Not only is there a way to do this, but the response
spelled out exactly how it can be done:
Backup the data - delete the logical volume - recreate it with
largefiles enabled - restore the data
Not easy but it works.
I've worked with UNIX for a long time and I very rarely say there is
"NO" way.
There are many things that have to be done the "hard" way. Every migrate
to a new server? Can't be done dynamically but of course it can is done
all the time.
I think saying this can't be done is not only overreacting and
exaggerating it is just plain wrong.
support@xiatecs.net gave the correct answer.
Bill Thompson
Sr UNIX Systems Administrator
The Goodyear Tire & Rubber Co.
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----- Original Message -----
From: "pSeries AIX Geek" <aixgeek@YAHOO.COM>
Newsgroups: bit.listserv.aix-l
To: <aix-l@Princeton.EDU>
Sent: Monday, November 11, 2002 10:16 PM
Subject: Re: How to enable a large file system
> Why even give him hope by saying "no easy way"? There
> is NO way. The inodes have a completely different
> structure with the large file-enabled file system.
> Even if you attempt were write a C-program to go and
> muck with the inode tables, I think you could easily
> map a scenario where you would't be able to remap
> them. I.e., only under very limited circumstances
> could this even be attempted -- hence, I'd just say,
> "there's NO way" and I wouldn't be overreacting or exaggerating.
>
> - pAG
>
>
> --- support <support@xiatecs.net> wrote:
> > Frank,
> >
> > unfortunately, there is no easy way to do it after
> > creating the file system.
> > The only way now is to backup the file system,
> > remove it, recreate the file
> > system as large enabled file system, finally reload
> > you backup.
> >
> > XiaTecs Support Team
> > support@xiatecs.net
> > www.xiatecs.net
> >
> >
> > -----Original Message-----
> > From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf
> > Of fcheung
> > Sent: Thursday, November 07, 2002 12:22 PM
> > To: aix-l@Princeton.EDU
> > Subject: How to enable a large file system
> >
> >
> > Admins,
> >
> > Could someone guide me to change enable a large file support on a
> > existing file
> > system? I changed the file limit to unlimited on
> > /etc/security/limit.
> > But I can't
> > change the Fragment Size and Allocation Group Size
> > on a existing file
> > system.
> >
> > Thanks
> >
> >
> > Frank
>
>
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