Well, I'm gonna start asking my linux questions HERE. Every linux geek I asked
said it couldn't be done...
> Date: Fri, 2 Sep 2011 12:37:28 -0400
> From: [email protected]
> To: [email protected]
> Subject: Re: [U2] Red Hat Enterprise Linux 64 bit and Universe 11.1.4 -
> Experiences?
>
> Well there ya go. I stand corrected. I was probably getting confused with
> "shrinking" vs. "extending". I think to shrink you have to unmount.
>
> My mistake.
>
> On Fri, Sep 2, 2011 at 12:33 PM, Michael Pflugfelder <[email protected]
> > wrote:
>
> > With RedHat 5, LVM & EXT3 filesystems, you can do online resizing.
> >
> > First, you need to increase the size of the logical volume with "lvextend".
> > Then you need to resize the filesystem with "resize2fs".
> >
> > I did it a few weeks ago on a virtual machine without users noticing any
> > difference.
> >
> >
> >
> > -----Original Message-----
> > From: [email protected] [mailto:
> > [email protected]] On Behalf Of John Thompson
> > Sent: Friday, September 02, 2011 9:34 AM
> > To: U2 Users List
> > Subject: Re: [U2] Red Hat Enterprise Linux 64 bit and Universe 11.1.4 -
> > Experiences?
> >
> > I believe with EXT4, JFS, or XFS filesystems you can expand them only -
> > while it is mounted.
> >
> > However if you are running RHEL 5 with EXT3, then you have to unmount the
> > partition before you expand. JFS is of course what AIX uses. You can use
> > JFS in Linux, if you set your filesystems up that way originally.
> >
> > I also assume you are using LVM along with a filesystem to manage things...
> >
> > See these notes:
> >
> > http://en.gentoo-wiki.com/wiki/LVM
> > http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html
> >
> > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/ext4grow.html
> >
> > By the way, I've always thought Gentoo and Ubuntu had great documentation.
> > Red Hat is getting better...
> >
> > In this case, the filesystem and lvm2 utilities should be 99% the same
> > across all Linux distro's, so you can find out what you need to know on
> > Gentoo or Ubuntu docs, even though its RHEL. That is not always the case...
> >
> > As far as the cost goes... you are probably right, since, I don't have the
> > guts to not pay for Linux support and just download CentOS.
> > http://www.centos.org/
> >
> > However, for us, its more a matter of flexibility and standardization. I
> > have Linux machines (mainly Ubuntu) doing critical business functions
> > already, and if I can have one less operating system to worry about, thats
> > less headache for me.
> >
> > Plus its way cheaper for me to set up a development machine on the fly on
> > my workstation using CentOS. Its nigh impossible to do that with AIX.
> >
> > AIX is great, until you need to use an open source piece of software, then
> > things get tricky.
> >
> > The best answer I found to that problem was this:
> >
> > http://pware.hvcc.edu/
> >
> > But its maintained by a fellow at a college university, and if he ever gets
> > sick of doing that... then I'm stuck with going through rpm hell.
> >
> > We have a pretty barebones AIX setup with zero LPAR's and local disk on one
> > P550.
> > So yeah I agree, on paper the cost is almost a wash, but, for us its all of
> > the costs that I can't really show on paper very well...
> >
> >
> > On Thu, Sep 1, 2011 at 11:48 PM, Dan Fitzgerald <[email protected]
> > >wrote:
> >
> > >
> > > I work with both RHEL & AIX, and I'm not sure that you save a whole
> > > bunch of money by going Linux anymore. I won't p0ut [AD/} in here,
> > > because I'm not a vendor, nor do I have a business relationship with
> > > one (anymore). But I was recently investigating making this same move,
> > > and my IBM vendor proposed replacing my 2 p570's (4 LPARS each) with a
> > > Blade H center, populated with 2
> > > PS701 Blades, for a little under $75K, including 3-year hardwarew
> > > warranty &
> > > 3 year AIX software 24x7 4Hr onsite maintenance. Additional Power
> > > blades were $14K, but wintel blades could be had for about $7K each,
> > > fitting in the same enclosure. "Membership" for a comparable RH
> > > installation over 3 years was about that same $75K, before you even
> > > buy hardware. Of course, you can go without software support on linux,
> > > but you'd better be very good at it, especially if your implementation is
> > at all non-standard (um, U2).
> > >
> > > I also note that one of the most common sysadmin procedures I execute
> > > is expanding file systems as data footprints grow. On AIX, I allocate
> > > the storage, do a cfgmgr, then issue the appropriate chfs command. In
> > > Linux, to expand a file system means taking the volume offline:
> > > downtime. P.S.: If I'm wrong about that, please tell me how to do it,
> > thanks.
> > >
> > > > Date: Fri, 2 Sep 2011 00:28:57 +0200
> > > > From: [email protected]
> > > > To: [email protected]
> > > > Subject: Re: [U2] Red Hat Enterprise Linux 64 bit and Universe
> > > > 11.1.4 -
> > > Experiences?
> > > >
> > > > Hi John,
> > > >
> > > > I think you will find it to be a positive move, both technically and
> > > > financially!
> > > >
> > > > Recently I have done a fair bit of testing for a customer who are
> > > > going to be migrating to 64 Bit Red Hat from a non-AIX variant of
> > > > Unix and I cannot say I stumbled across any big issues. I was using
> > > > previous versions of 11.1 for the tests.
> > > >
> > > > Do plenty of trials and tests to identify any potential issues, and
> > > > I am pretty confident you will report back with positive news.
> > > >
> > > > Regards
> > > > Glenn
> > > >
> > > >
> > > >
> > > > Am 02.09.2011 00:02, schrieb John Thompson:
> > > > > I'm looking to migrate from AIX 5.3 to RHEL. Basically because
> > > > > IBM is putting the hatchet to "regular" support on AIX 5.3 in May
> > 2012.
> > > > >
> > > > > Has anyone had any experiences/challenges running Universe 11.1.4
> > > > > on
> > > Red Hat
> > > > > Enterprise 6 - 64bit?
> > > > >
> > > > > I'm guessing I may get crickets on this one, since accroding to U2
> > > > > Techconnect, 11.1.4 has only been out about a week...
> > > > >
> > > > > https://u2tc.rocketsoftware.com/buildmatrix.asp
> > > > >
> > > > > Kudos to Rocket for getting it to run on RHEL 6.
> > > > >
> > > > > I'm just scared if I go with RHEL 5, then I'll be in the
> > "obsolescence"
> > > boat
> > > > > two years from now.
> > > > >
> > > >
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> > >
> >
> >
> >
> > --
> > John Thompson
> > _______________________________________________
> > U2-Users mailing list
> > [email protected]
> > http://listserver.u2ug.org/mailman/listinfo/u2-users
> > _______________________________________________
> > U2-Users mailing list
> > [email protected]
> > http://listserver.u2ug.org/mailman/listinfo/u2-users
> >
>
>
>
> --
> John Thompson
> _______________________________________________
> U2-Users mailing list
> [email protected]
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