Re: To STRIPE, or not To STIPE, That is the question

Graham mitchell <grammi007@classic.msn.com> wrote: > Hi all, > Does anybody KNOW. Really KNOW if stripping does > improve performance on AIX if you use LVM > stripping > I am about to do a gargantium data reorg onto > 76Gb of new disk space, and do not have the time or > resources to experiment. > Have you been here before ?! There are too many variables in the mix to say for certain. I, for one, wouldn't do it without testing and lotsa backup, especially in a production environment. If your running RAID on an SP/2, for example, with 20 uniprocessor nodes, 19/20 of your I/O is going to be remote, which introduces all sorts of overhead. If, on the other hand, you have 4 5-processor nodes, way more of your I/O is local, so you might see significant performance gains using RAID. It *simply* has to be tested. Kurt -- Not tonight, honey, I've got a kernel compile...