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Originally Posted by blue68f100
Expanding the raid 5 array up to 7-8 drives ( 1 spare). 7 x 300 = 2.1 T - overhead may be 2 tera bytes.
How sweet would this be .........
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Why go that route? There are 750GB Drives out there now I am sure of, and a friend of mine said he saw a 1TB Drive on a distributor list the other day (already for sale). So why not just go 4 x 750 or 4 x 1000 with an upgraded 1U or 2U power supply?
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Originally Posted by blue68f100
This thread is gone down hill, but it has been fun.
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Okay, Okay, I get the point!
So back on topic (at least part of it)...
Are we agreed that in a 4100, the power supply is capable of 4 x 160 drives, which already exceeds the LBA48 limit on them? So no problems there (yet)?
-AND-
Are we agreed, that 1) without adding in a new delay or current limiting circuit, or 2) changing the power supply in some manner, that a 4000 should handle any version of drives x 4 so long as they require no more than;
1) 2.25 Amps Spin-Up power (9 Amps Total)
AND
2) 1.125 Amps normal operating power (4.5 Amps Total)
on the 12 volt rail?
If, and I repeat IF, we are agreed, then what are the largest drives from the different manufacturers that will meet these requirements? (I am assuming we should always be good on the 5 volt rail)
The catch to this question above is finding actual requirements of a given drive versus what the manufacturers post on their web pages. Even Storage Review has very limited info in this area (the number of drives listed). I think in this case, we are gonna be back to either doing a crap load of measurments on drives we don't have, or finding a source of people who have changed drives and sort out what has and has not worked (not just drive size, but manufacturer and model number drive). Maybe, just maybe, we can do a little SWAG (Scientific Wild A#$ed Guess) and just guess based on the number of platters used in a drive versus the number of platters used in upgrades we know worked. This last one would probably preclude Seagates because they seem to draw a lot more power on the 12 volt rail than other manufacturers. Any ideas?