Agreed :) Bill Wheatley Senior Database Developer Macromedia Certified Advanced Coldfusion Developer EDIETS.COM 954.360.9022 X159 ICQ 417645 ----- Original Message ----- From: "Mark A. Kruger - CFG" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Monday, July 15, 2002 10:10 AM Subject: RE: The drive wars - was hardware question.
> Bill, > > While I generally agree with you regarding SCSI when it comes to datbase > servers, I would disagree in regard to web servers. We have multiple CF web > servers in a cluster. the "file access" mostly hits the template cache. > Once they are booted the disks do relatively little other than system > tasks - assuming you have adequate memory and your template cache is large > enough. We baselined it very carefully and came to the conclusion that for > THIS specicific purpose, IDE was sufficient. The number concurrent users > seems to make no appreciable impact (we serve as many as 5 million requests > on a typical business day) on the performance of the disk. The chief > factor in the decision should be the amount of disk activity. Note, since > they are NOT hot swappable, I would not try this arrangement outside of a > cluster as it would result in down-time. We use Raid 1 for redundacy and > keep spares handy - but we have needed them no more frequently than the scsi > spares. > > As far as the enterprise goes - buy the best hardware you can afford for > your Datbase server, have hot spares on board and a good backup db server > (that you keep current with log shipping or replication or whatever). That's > where the critical data lives. IMO, I'd rather have a cluster of 4 > inexpensive web servers running through a hardward load balancer than 1 > expensive web server. > > -Mark > > -----Original Message----- > From: Bill Wheatley [mailto:[EMAIL PROTECTED]] > Sent: Monday, July 15, 2002 8:48 AM > To: CF-Talk > Subject: Re: The drive wars - was hardware question. > > > Bah IDE just doesn't function as well when you have concurrent users doing > things on the drive. > IDE ATA100 is nice for when its just me or a few people banging out stuff on > the drives. But if you have > a good load of processes having to read and write to the drive you need to > have SCSI. I have ATA133 at home it rocks > but we also have 15k SCSI drives at work and I couldn't even think to put > our stuff on IDE drives. IDE is not their yet for enterprise level business, > it will work but its like towing a boat with a Economy class ford escort. :) > > But then again what do I know. > > > Bill Wheatley > Senior Database Developer > Macromedia Certified Advanced Coldfusion Developer > EDIETS.COM > 954.360.9022 X159 > ICQ 417645 > ----- Original Message ----- > From: "Mark A. Kruger - CFG" <[EMAIL PROTECTED]> > To: "CF-Talk" <[EMAIL PROTECTED]> > Sent: Monday, July 15, 2002 8:30 AM > Subject: RE: The drive wars - was hardware question. > > > > We have both IDE and SCSI (some are hot swap and some are no) in a large > > data center with many different kinds of systems. We see BOTH kinds of > > drives fail infrequently. IMO, if you have a server without a hot backup > > server, or one that's not in a cluster, using a hot-swappable SCSI setup > is > > something you should seriously consider - especially for a DB server. > > However, we use IDE quite successfully in several situations. > > > > -mk > > > > > > > > > > ______________________________________________________________________ Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
