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Help: Building A System Around Seagate Hard Drives
I'd like to build two systems around 8 SCSI drives that I am about to
get. Each system will have four drives.(See below). http://www.softwareandstuff.com/h_st...t118723lc.html http://www.softwareandstuff.com/hd_st118202lc.html Reliability is important, and performance is secondary.(I intend to back up between drives). Besides SCA 80-pin to 68-pin adaptors, and an LVD SCSI controller, are there any special considerations for a motherboard?(And anything else I may have fail to mention). Any advice would be appreciated. Thanks a lot. Darren Harris Staten Island, New York. |
#2
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"Darren Harris" wrote in message
om... I'd like to build two systems around 8 SCSI drives that I am about to get. Each system will have four drives.(See below). http://www.softwareandstuff.com/h_st...t118723lc.html You mean ST118273. That's 5 years old and very slow. Tons of them on ebay, nobody buys. http://www.softwareandstuff.com/hd_st118202lc.html That's better, 4 year old Cheetah, 9ms access time. Reliability is important, and performance is secondary.(I intend to back up between drives). You mean RAID 1 or manual imaging? Besides SCA 80-pin to 68-pin adaptors, and an LVD SCSI controller, are there any special considerations for a motherboard?(And anything else I may have fail to mention). Both are half-height with many platters. They put out 13W when idle, more when active. You need good cooling or they will die. SCA adapters work well with 1-2 drives. Most people recommend backplanes for 4 drives. |
#3
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"Eric Gisin" wrote in message ...
"Darren Harris" wrote in message om... I'd like to build two systems around 8 SCSI drives that I am about to get. Each system will have four drives.(See below). http://www.softwareandstuff.com/h_st...t118723lc.html You mean ST118273. That's 5 years old and very slow. Tons of them on ebay, nobody buys. I did. :-)(Two lots of four for $48 a piece). And like I mentioned, performance is secondary. I plan to use two for normal uses, and two for backing up to, totalling four in a single case). http://www.softwareandstuff.com/hd_st118202lc.html That's better, 4 year old Cheetah, 9ms access time. Reliability is important, and performance is secondary.(I intend to back up between drives). You mean RAID 1 or manual imaging? Manual imaging. Besides SCA 80-pin to 68-pin adaptors, and an LVD SCSI controller, are there any special considerations for a motherboard?(And anything else I may have fail to mention). Both are half-height with many platters. They put out 13W when idle, more when active. You need good cooling or they will die. SCA adapters work well with 1-2 drives. Most people recommend backplanes for 4 drives. I'm not sure what you mean by backplanes. I have one in a Compaq I have that is installed at a 90 degree angle to the motherboard, but I don't know what these would have to do with the SCSI systems I want to build. (I have a large 27 inch tall, ATX case that I'd like to use for this project). Thanks a lot. Darren Harris Staten Island, New York. |
#5
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The SCA drives were designed to simplify hot-swapping--they have one
connector that carries both signal and power and is designed to withstand repeated insertions and removals. Generally they're used with hot-swap cages of one sort or another that have several of those connectors on a single circuit board--that circuit board is called a "backplane". The big problem I see with the drives that you have ordered is that they are half-height drives and the cages are designed for low profile. Well, I intend to put them the case I mentioned whcih is a full tower.(I have SCA adaptors). Thanks. Darren Harris Staten Island, New York. |
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