quote:
Originally posted by: Bmott
quote:
Originally posted by: herbiehancock
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Originally posted by: RMSistight
Seagate's Cheetah 15,000 RPM Serial Attached SCSI 3.0Gb/s FTW. 1.4 million MTBF. This drive will laugh at ANY consumer level storage and all of the Raptors....except for Fiber channel.
Only time I'll buy a Raptor is when it's 15K RPM and SATAII.
Seems you can only spout and thread crap about stuff you don't own or use, considering the rig in your sig. And comparing a $450 drive to a $140 drive? Get real.........but I suppose this is only what one can expect from the 15 year old know-it-alls on the forums here.
Funny thing is that we actually bought a pair of those 15k rpm drives for work, and they were such a pain. First We have a dell Precision 380, and it doesn't have any PCI-X slots, so the adaptec SCSI card was limited in bandwidth to the bandwidth of the stupid pci slot.
next to get around this we had to buy a msi logic PCI-EXPRESS x1 scsi card to finally unlock the performance of these drives.
so $1450 later (2 scsi drives + controller) we do some testing. Yes its fast. Then we start doing real world testing. And it is only an improvement of 5% on runtimes for our HUGE NASTRAN Models !!!!
so if you want to do a comparison from our company. dual 15,000 RPM SCSI is 5% faster then a single 10,000RPM Raptor and only costs $1300 more.
so save your cash and buy the raptor. We have them in every computer at work doing hard drive intensive code all day long, Super stable, super cheap, super high performance.
quote:
Originally posted by: RMSistight
Yeah but what you're talking about is SCSI. Which specific type of SCSI are you talking about? Ultra-160? Ultra-320? SCSI-2? I'm talking about Serial Attached SCSI. There is a difference here. And also the controller card I'm getting is PCI-E x1 which is what you need like you indicated to fully maximize the bandwidth.
The Raptor can't hang with a 15K Ultra320 SCSI drive or Serial Attached SCSI. I was thinking about going fibre channel but it only works with other fibre channel drives. With Serial Attached SCSI, I can mix both enterprise level SAS drives with SATA drives at my desire.
sorry for the tangent guys,
http://www.newegg.com/Product/Product.asp?Item=N82E16816118027
LSI Logic LSI00008 PCI Express SCSI RAID storage adapter RAID 0/1/5/10/50
is the card we needed to buy in order to get full performance out of our scsci hard drives. It is a "Dual-channel Ultra320 SCSI controller"
and yes there was only a 5% real world diff between the raptors when running NASTRAN models. each computer was the standard win xp, 4gb ram. yada yada..
The old card that was slow (only because we didn't have a pci-x slot on our computer which was a dell precision 380- only the more expensive model had the pci-x slots) was the Adaptec 29320A-R 64-bit/133MHz PCI-X SCSI Card