Hi > > > * IDE drives die around 10 concurrent users. Fast SCSI or FC drives are > > > manditory for a large number of concurrent users. The faster the better. > > > > Can anyone else comment on the disk requirements ? > > > > Does more RAM help ? > > > > What, exactly, is so great about SCSI ? > > > > The platters turn at the same speed - is it the elevator algorithm seek > > and the out-of-order replies ? > > > > I /really/ don't want to have to go the SCSI route. > > > > I tried Software RAID5, but the rebuild after a power cut was painful. > Andy, going backwards: > trust us, the "grownups" - you very, very much *want* to go the > SCSI route. There are reasons for higher prices - the disk electronics are > way more advanced, the request queueing really works, the wide data path > allows for *sustained* high throughput, the otpitmized head movement > traslates into faster reads and writes and into longer hardware life. And, > no, serial ata is *not* as good as scsi. > software raid - try harder, or go hardware raid with hot swappable > drives (scsi, of course :-) > more ram helps big time - ram is good, more ram is even gooder.
<smiles> > trust us, the "grownups" - you very, very much *want* to go the Please give info. please: I tested a compaq proliant with UW SCSI, 10 lts workstations against a ATA100 IDE. hdparm -t -T /dev/hda <sda> gives a slight edge to the IDE. For most part the two machines felt the same. I missed the opportunity to use the SCSI during a disk-disk backup where the IDE was noticible (making the system sluggish). SCSI is a lot more cost-and-hassle than IDE, I'll do it if there is a clear benefit vs hearsay, but it's hard to find someone to say I used to use IDE and when I changed to SCSI these marvelous things happened rather than I've made up my mind about SCSI, please don't try to confuse me with facts so please ... James ------------------------------------------------------- This SF.net email is sponsored by: VM Ware With VMware you can run multiple operating systems on a single machine. WITHOUT REBOOTING! Mix Linux / Windows / Novell virtual machines at the same time. Free trial click here:http://www.vmware.com/wl/offer/358/0 _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
