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 <mpflugfel...@ratex.com > 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: u2-users-boun...@listserver.u2ug.org [mailto: > u2-users-boun...@listserver.u2ug.org] 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 <dangf...@hotmail.com > >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: u...@glennsallis.de > > > To: u2-users@listserver.u2ug.org > > > 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. > > > > > > > > > > _______________________________________________ > > > U2-Users mailing list > > > U2-Users@listserver.u2ug.org > > > http://listserver.u2ug.org/mailman/listinfo/u2-users > > > > _______________________________________________ > > U2-Users mailing list > > U2-Users@listserver.u2ug.org > > http://listserver.u2ug.org/mailman/listinfo/u2-users > > > > > > -- > John Thompson > _______________________________________________ > U2-Users mailing list > U2-Users@listserver.u2ug.org > http://listserver.u2ug.org/mailman/listinfo/u2-users > _______________________________________________ > U2-Users mailing list > U2-Users@listserver.u2ug.org > http://listserver.u2ug.org/mailman/listinfo/u2-users > -- John Thompson _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
