Nice ... Cept SATA is virtually identical to SCSI ... Ie you can access all the drives at once. And even with IDE if you have 1 device per master you can access all the drives at once. SATA RAID and SCSI RAID are mostly identical IF you are using a Real Hardware SATA RAID and not one of those on motherboard RAIDs (actually dell has a REAL Hardware SATA raid one some of it's lower end tower case servers)
If you are not talking about running a Hosting company, then honestly don't worry about it. You can use RAID-1 if you really want some extra reliability. If you're running a hosting company, then umm we should have to explain this to you :) I've stopped 1,541 spam and fraud messages. You can too! Free trial of spam and fraud protection at http://www.cloudmark.com/sig/? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dan Sorenson Sent: Friday, February 10, 2006 12:23 AM To: [email protected] Subject: [hlds] Re: I need help!! At 06:13 PM 2/9/2006 +1100, you wrote: >Raid-0 is not random, but you are right, there is no redundancy. It's only random in that it's not predictable by the RAID controller -- with only one disk having that information on it you can't use predictive logic to read in advance and are sort of stuck with read-as-it-comes-around. With disk speeds at 5400, 10K, and 15K rpm this isn't a lot of time we're talking about, but compared to the access to memory it might as well be measured in geological terms. One other thing: SATA vs SCSI. When choosing your server config SATA and even IDE is a lot cheaper than SCSI. The thing about SATA and IDE is you get access to one disk at a time from the controller. SCSI you can access all devices at pretty much all times. That requires extra intelligence on the SCSI devices so they tend to be more expensive, but if you want to run a RAID-5 array on 5 drives you've 4 reads and 5 writes to do for each bit of data. That's one pipe at one time on SCSI, it's four independent reads and five independent writes on SATA. You can see where making this all a one-at-a-time thing can reduce performance and make SCSI a viable alternative for a Raid-5 array but probably a waste of money for a raid-1. Short and sweet, decide what kind of disk IO you're going to see on your server and choose accordingly. RAID-5 on a CS server is a waste of money and speed, but RAID-5 is probably a good idea on something that you're hosting six games and a webserver on if you choose SCSI drives. - Dan * Dan Sorenson DoD #1066 A.H.M.C. #35 [EMAIL PROTECTED] * * Vikings? There ain't no vikings here. Just us honest farmers. * * The town was burning, the villagers were dead. They didn't need * * those sheep anyway. That's our story and we're sticking to it. * _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds
