RE: raw vs. cooked files under linux
When you compare cooked versus raw here, are you focusing on Linux only, or talking about this in general - other Unix platforms as well ? -----Original Message----- From: owner-informix-list@iiug.org [mailto:owner-informix-list@iiug.org] On Behalf Of Data Goob Sent: 11 May 2005 03:08 PM To: informix-list@iiug.org Subject: Re: raw vs. cooked files under linux If you are in a slow-change environment raw-files are not a bad thing. They create extra problems on the management side that cooked files do not. Fast-changing environments create more demand on your time so why put yourself into extra work with raw files? They don't give you enough of a difference in performance to really warrant them unless you are really demanding that extra 10%. Cooked files are also also more flexible on backups, you can back the dbspaces up with a regular backup tool or use the Informix backup tools, but raw files will have to be backed up with Informix tools only. SLES9 is quite a sea change from SLES8, and you could probably get away without SLES and go with the workstation Pro 9.3 if you are on a budget. SLES has better support for SCSI than the workstation versions and you must buy support or the online update doesn't work. It's an enterprise lock-in you might not need so try before you buy. SLES9 can be downloaded for trial, so give it a spin. You should be able to download IDS 10 for trial as well, thus no out of pocket to try it before paying for it. Heinz Weitkamp wrote: > Hi all, > > i am an linux newbie. > I must shift our Databases from SCO Unix (IDS 7.31 UD4) to SuSE Linux > Enterprise Edition 8.1 (2.4.21-190-smp glibc 2.2.5) or (8.2) or 9 and SuSE > Linux Professional 9.3 (2.6.11.4 glibc 2.3.4) (IDS 7.31 UD8). > > Later on i want to upgrade (in place) to IDS 10.0. > Which Version of SuSE Linux Enterprise Edition must I use (8.? , 9 ..)? > > Under Sco Unix we use raw-devices. > Is it better to use cooked files or raw files under these Linux-Versions? > A colleague mentioned, it can be, that later releases of Linux don't support > raw-devices. Is that correct? > > Experiences or comments are welcome. > Thanks in advance. > (Excuse my poor school-english) > > Heinz > > sending to informix-list sending to informix-list