Thanks for pointing that out. I've dealt with too many filesystems over the years, and they are all starting to blur together :(
On Fri, Sep 2, 2011 at 12:37 PM, John Thompson <[email protected]>wrote: > 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. >> > > > >> > > >> > > _______________________________________________ >> > > 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] >> http://listserver.u2ug.org/mailman/listinfo/u2-users >> _______________________________________________ >> U2-Users mailing list >> [email protected] >> http://listserver.u2ug.org/mailman/listinfo/u2-users >> > > > > -- > John Thompson > -- John Thompson _______________________________________________ U2-Users mailing list [email protected] http://listserver.u2ug.org/mailman/listinfo/u2-users
