Re: Database and RAID

On 15 Jun 98 at 11:57, Udo Scholz wrote: > Does anyone have practical experiences in using RAID systems and > database servers? Yes. > Is it either better to use mirrored harddisks and distribute datas > wich the advanced features of the according database server (for > instance Sybase ASE) or simplify this overhead by using a RAID5 > system? If your application is update intensive, I would not necessarily use RAID 5. It adds a substantial overhead. Also, unless you have huge sums of money to spend on a disk farm, it is difficult to structure RAID 5 to make the best use of Informix's parallelism. The best approach is to rigorously benchmark all aspects of your application. But the short form of my opinion is to stick with the database's features. > Interesting facts are: performance, security, handling and so on. Are they now? > Thank you for useful answers, hints ... Sorry, I haven't got any of those... :-) -- Ciao, Billy /Group Managing Director, The West Solutions Group: http://www.west.co.za \\ Drivel @ http://www.west.co.za/tasteless/ / \\ "Granted, Mr Wheeler's ideas are stupid and unreasonable, but he does own the company and I / think we should go along with him..." \\________________________________________________________________________________________________