> From [EMAIL PROTECTED] Sun Sep 17 08:48:00 2000 > > On Wed, 13 Sep 2000, Chris Mauritz wrote: > > > What type of array are you building? The 3WARE IDE RAID cards > > are very nice, but they only support 0/1/0+1. I'm using them > > with great success under both Linux and win2K. > > raid5 or raid10 using 3 or 4 scsi (seagate cheetah x15) RAID 10 (0+1) would only work with 4 drives. RAID 5 will work with 3 or 4....preferably 4. > > And yes, the ExtremeRAID cards are noticibly faster than > > the other common RAID cards in their price range....especially > > for RAID 5 applications. > :( > what will be the best card after the mylex ? > i don't need 4 channels or something since i will use them in a 2u > rackmount case, that only has 1 backplane I don't know. I tried both ICP Vortex and DPT cards in the $1500 range and they were all noticibly slower than an ExtremeRAID 1100 on my RAID 5 (with 8 cheetahs). Even with the ExtremeRAID, I was only able to get about 21m/sec for writes and about double that for reads. RAID 5 is just really piggy. On my newer 1U and 2U boxes, I simply use RAID 0 and do more frequent backups. If RAID 0+1 is an option for you, you can save a LOT of money by using a 3WARE Escalade controller and 4 7200rpm IDE drives. It will perform better than a 4-drive RAID 5 array (even with the fastest ExtremeRAID controller). I'm using a lot of these on my newer linux and win2k machines and am quite happy with them. For example....here are the specs on my mp3 jukebox machine at the office: P3-850 Asus CUSL2 motherboard (Intel 815) 256mb SDRAM Integrated video Toshiba 40x ATAPI CD-ROM Netgear FA310X ethernet card Supermicro full-tower case 3WARE Escalade 8-port IDE RAID card 8 x Maxtor 60gig ATA/66 drives Redhat 6.2 So I've got a half terabyte of storage on a very fast general purpose machine and the entire system cost only about $3500. I could have held out a few more weeks and spent slightly more for the 80gig Maxtor drives, but I had an itchy trigger finger. 8-) The limiting performance issue here seems to be the ethernet card. I've ordered a gigabit card to see if that will improve things when lots of people are hitting it at once. I suspect it will help quite a bit. Cheers, C -- Christopher Mauritz [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to [EMAIL PROTECTED]
