On Tue, March 17, 2009 9:55 am, Richard Chycoski wrote: > apostolos pantazis wrote: >> These days it seems to be getting harder and harder finding quality >> support under 32 BIT; In some cases vendors have flat out specified
We have some vendors who are stuck with 32-bit, but some readily switch to 64-bit when we ask. After running 32-bit OSes (RHEL3, RHEL4) on 64-bit hardware for several years, we replaced the hardware and upgraded the OSes to 64-bit. The only concession to the 32-bit vendor was to stay at CentOS4 with the 32-bit compatibility modules. We found through testing that the 64-bit CentOS/RHEL 5 distros didn't support the 32-bit Version 4 programs very well. Though we were able to compile and install the required 32-bit library versions for test, this would have violated the vendors support agreement in production systems. 64-bit is necessary for most of our bioinformatics applications: we are running 16-128GB of RAM and 8-32 cores in most of our machines, many of which are in high-performance compute clusters running ROCKS. We have also had success consolidating a smaller legacy cluster of eight 1U servers with RHEL4 applications onto a single 2U CentOS5 machine, with each running under CentOS4 in virtual machines under Xen. This was accomplished with no changes to the vendor's software or system configuration. > Most of the hardware that we've installed over the last three-or-so > years is 64 bit (but many were originally rolled out with 32 bit Linux), > and the next internal move is to 64 bit RHEL5. Our Linux team has > indicated that they won't support 32 bit for any future releases. We > certainly have a significant number of 64 bit Linux servers already in > production, and I haven't heard of any recent issues (although there > were definitely some teething problems when the first ones were > installed). > > - Richard > _______________________________________________ > Tech mailing list > [email protected] > http://lopsa.org/cgi-bin/mailman/listinfo/tech > This list provided by the League of Professional System Administrators > http://lopsa.org/ > > > -- Larye D. Parkins Information Engineering Services PMB 435, Suite 5, 610 N. 1st St. Hamilton, MT 59840 http://www.info-engineering-svc.com _______________________________________________ Tech mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
