>It states that with Raid 1 (mirror) the write speed is the same I cant see where it says that? Maybe a case of temporary blindness on my part, or maybe John has just edited the "encyclopedia"
-----Original Message----- From: Russ [mailto:[EMAIL PROTECTED] Sent: 19 January 2006 16:21 To: CF-Talk Subject: RE: Dual Xeon 3.06 GHz - 120 GB IDE HD - 2 GB RAM I'm not so sure about that. Check wikipedia: http://en.wikipedia.org/wiki/Redundant_array_of_independent_disks#RAID_1 It states that with Raid 1 (mirror) the write speed is the same as a single disk, and the read speed is doubled (because each disk in the mirror can be accessed individually). Seek time is also halved. Russ > -----Original Message----- > From: John Paul Ashenfelter [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 18, 2006 6:23 PM > To: CF-Talk > Subject: Re: Dual Xeon 3.06 GHz - 120 GB IDE HD - 2 GB RAM > > On 1/18/06, Baz <[EMAIL PROTECTED]> wrote: > > Good call. > > > > Actually, a *mirror* RAID array is *slower*, all other things being > equal. Two writes instead of 1, though certain controllers make the > overhead *very* small. Reads, not so different. > > If you're after pure speed, you want a RAID *stripe* -- eg RAID 0, > which spreads data access across 2 or more drives with a corresponding > increase in speed. > > All that said, while YMMV, 2gb is gonna put all but the most enormous > and session-variable-intensive web sites into RAM, so the HD hit is > minimal. But I'd still get RAID w/o even thinking twice -- more > flexibility for either redundancy (RAID 1, 5, 10) or speed (RAID 0) > > > > > -----Original Message----- > > From: Russ [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, January 18, 2006 3:06 PM > > To: CF-Talk > > Subject: RE: Dual Xeon 3.06 GHz - 120 GB IDE HD - 2 GB RAM > > > > The hd is an obvious bottleneck. That's usually the slowest point in > your > > system. I would use a SCSI or at least a SATA drive, and then probably > for > > good measure set it up a mirror RAID array (that way you get better > > performance. > > > > Russ > > > > > -----Original Message----- > > > From: Baz [mailto:[EMAIL PROTECTED] > > > Sent: Wednesday, January 18, 2006 2:49 PM > > > To: CF-Talk > > > Subject: Dual Xeon 3.06 GHz - 120 GB IDE HD - 2 GB RAM > > > > > > If I installed: > > > - CFMX7 Enterprise > > > - MySQL 5.0 > > > > > > On the following machine: > > > - Dual Xeon 3.06 GHz - 120 GB IDE HD - 2 GB RAM > > > > > > Am I making good use of the hardware? Can both technologies fully > utilize > > > the CPU and RAM? Any obvious bottlenecks, perhaps add another GB of > ram? > > > > > > Cheers, > > > Baz > > > > > > > > > > > > > > > > > > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:229989 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
