Re: moving from raw chunks to cooked files
On 25 August 2010 16:35, Art Kagel <art.kagel@gmail.com> wrote: > Yeah, Linus has been trying to get rid of RAW files for many years. I wish > he'd just give it up. Anyway, there is no problem using cooked files, and > migrating the data is as simple as dd'ing the data from the RAW devices to > new filesystem files and then relinking the link paths that IDS using to > access the RAW devices to the filesystem files. You should use the simplest > filesystem available, no journalled filesystems like EXT3 and EXT4. I would > suggest just using an old EXT2 filesystem as the best choice. It's very low > overhead compared to the more modern filesystems. > > Another option, BTW, would be to use COOKED (aka block) devices rather than > filesystem files. COOKED devices tend to be a little faster than filesystem > files even with DIRECT_IO enabled on both. > > Art > > Art S. Kagel > Advanced DataTools (www.advancedatatools.com) > IIUG Board of Directors (art@iiug.org) > > Disclaimer: Please keep in mind that my own opinions are my own opinions and > do not reflect on my employer, Advanced DataTools, the IIUG, nor any other > organization with which I am associated either explicitly, implicitly, or by > inference. Neither do those opinions reflect those of other individuals > affiliated with any entity with which I am affiliated nor those of the > entities themselves. > > > > On Wed, Aug 25, 2010 at 10:43 AM, Aleksander Kamenik > <aleksander@krediidiinfo.ee> wrote: >> >> Hi, >> >> We're running Suse Linux Enterprise Server on x86 and with the latest >> SLES11SP1 release notes comes this announcement: >> >> "The RAW devices are deprecated and will be removed with one of the next >> Service Packs or SUSE Linux Enterprise Server 12." >> >> I'm about to reinstall Informix onto new drives so might as well migrate >> to cooked files. >> >> What filesystem is recommended? Are there any significant performance >> issues nowadays? >> >> Currently I have two raw devices which contain a total of 18 chunks. I >> would like to see them as 18 files on four different drives/partitions after >> the migration. I can't find any documentation on migrating to cooked files. >> Is this even possible? >> >> Using Informix 11.50.UC7. >> >> Regards, >> >> Aleksander Kamenik >> System Administrator >> Krediidiinfo AS >> an Experian Company >> Phone: +372 665 9649 >> Email: aleksander@krediidiinfo.ee >> >> http://www.krediidiinfo.ee/ >> http://www.experiangroup.com/ >> >> >> _______________________________________________ >> Informix-list mailing list >> Informix-list@iiug.org >> http://www.iiug.org/mailman/listinfo/informix-list > > > _______________________________________________ > Informix-list mailing list > Informix-list@iiug.org > http://www.iiug.org/mailman/listinfo/informix-list > > Install free Solaris and continue to use the ease, speed and versitility of raw space !!! Keith
Keith Simmons wrote: > > Install free Solaris and continue to use the ease, speed and > versitility of raw space !!! Do you mean OpenSolaris? If so take a look at what's been happening in the last week or so, e.g. http://www.theinquirer.net/inquirer/blog-post/1729423/open-solaris-board-resigns It seems that OS could be a dead end until Illumos ( http://www.illumos.org ) is ready to provide a way forward. -- Ian The Hotmail address is my spam-bin. Real mail address is iang at austonley org uk
Ian Goddard wrote: > Keith Simmons wrote: >> >> Install free Solaris and continue to use the ease, speed and >> versitility of raw space !!! > > Do you mean OpenSolaris? If so take a look at what's been happening in > the last week or so, e.g. > http://www.theinquirer.net/inquirer/blog-post/1729423/open-solaris-board-resigns > > > It seems that OS could be a dead end until Illumos ( > http://www.illumos.org ) is ready to provide a way forward. > And if you meant the free as in beer option that died at the end of March, e.g. http://arstechnica.com/open-source/news/2010/03/solaris-10-no-longer-free-as-in-beer-now-a-90-day-trial.ars -- Ian The Hotmail address is my spam-bin. Real mail address is iang at austonley org uk
"Keith Simmons" <smiley73@googlemail.com> wrote in message news:mailman.423.1282751392.1071.informix-list@iiug.org... >> Install free Solaris and continue to use the ease, speed and versitility >> of raw space !!! Have you spent the last three months on the Moon, Keith ...?