From smcclure@usscript.com Thu, 12 Jun 2003 13:06:03 -0700 From: "Steve McClure" Date: Thu, 12 Jun 2003 13:06:03 -0700 Subject: RE: World premier performance of the BAARF party logo Message-ID: MIME-Version: 1.0 Content-Type: text/plain Title: RE: World premier performance of the BAARF party logo Boy I lost this battle here.  The thing was the salesmonger insisted that with all the caching and multipathing the Hitachi 9200 offered that we needent worry about putting our production, development, admininstrative, and designer databases all on a single (5 disk)RAID 5 array.  We then had a conference call with myself, our top IT folks, the sales monger and a Hitachi engineer.  I was very prepared going in, but figured the engineer would still be able to out "tech" me.  10 minutes later I was surprised to hear that the engineer agreed with me, that we would get much better performance Striping and Mirroring.    My celebration was short lived when my manager declared that while were going to spend 70K on Hardware,  we would not be spending 77K to get the disk  configuration I proposed.  He was essentially selling the sales mongers point of view rather than mine and the Hitachi engineer.  He claimed we would never make I/O the bottleneck on this system.  It didn't take me long to discover some processes were indeed bottle necking on disk I/O.  Go figure all the I/O for the whole system on a single physical device(array).    That said I JUST recently discovered that our multipathing software(vendor installed-- not Hitachi) wasn't installed properly, so we really are only using one pathway for all our I/O.  Once we get that installed I am actually afraid I will be pleasantly surprised at how well it works.   I will just have to be content knowing....as good as it is....it could be better yet.   Steve McClure