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[BostonGuru]

First Rackmount Build - Questions

I am trying to put together a 1U server, and this is the first time I've had to deal with the space constraints of a rackmount server.
I am toying with a RAID 10 setup, which requires 4 drives, so I am looking at 2.5" enterprise drives so that I can fit 4 into a 1U rack. The problem is I was on newegg and don't see any cases with 2.5" bays. Are there kits that convert 3.5" bays to 2x2.5" or something of this nature? Furthermore, I see here:http://www.newegg.com/Product/Produc...82E16822136260
that the 2.5" drive is inside a 3.5" brick. Can this be taken out of the mount? I don't see the point in paying extra for a 2.5" drive that only fits in a 3.5" slot.
I have read that in a 4-drive array, RAID 10 outperforms RAID 5. This seems counterintuitive to me because in RAID 5 there is essentially striping across 3 drives, and then parity on the 4th, whereas in 10, you would only have striping across 2 drives. Is this just because of the calculations involved in generating the parity?
Thanks.

[BostonGuru]

I found some 2.5" based cases from supermicro, so maybe newegg just isn't the place to be looking for enterprise level products.
Also, a followup to my RAID 5 V RAID 10 question. Does RAID 5 performance increase as more drives are added to the array? Its RAID 5 that allows to add additional disks on the fly to the array, correct?

correct, a hotswappable RAID 5, and your best bet is going to be to suck it up and get the 2 u of space with the slide bays for the drives, then you can get someting with a hotplugable backplane and get the rigth hdd's for it or get a controlercard and long enough cabled to slide out with the drives, i don't think that the slim drives are all that great, I'd rather use a fullsize drive that was built with better ball bearings and such to prevent failure as much as possible.





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[lamerfreak]

Why not just use the 1U for the server, and all the storage separately?

[zendzipr]

Depending on your budget, there are many options. I like to use chassis and mb from Acme Micro www.acmemicro.com. The other componenets I get from Newegg or Provantage. Acme has lowest system prices but expensive components.
Here you go...
Dual quad core up to 48GB Redundant PShttp://www.acmemicro.com/estore/merc...tid=182