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Changed out means I started with 3 7200.11 Seagate 750s and replaced them with 3 7200.12 Seagate 1TB drives. I really thought the 750s would be very close to the 1TBs, but they aren't. I tried to upgrade the firmware on all the 750s to ".AEK" - may have not been the best choice.

JP

I've not followed the firmware revisions on these drives. Can you elaborate?

Chances are that the platter density has more to do with the differences than anything else. I betcha the firmware won't have a significant impact. And more likely no impact at all.

I could be wrong of course. :D
 
Chances are that the platter density has more to do with the differences than anything else. I betcha the firmware won't have a significant impact. And more likely no impact at all.

I could be wrong of course. :D
I wasn't thinking in terms of performance, though it does happen, but rather it was causing some issue such as stability (drop outs). :confused:
 
Yeah, I pretty much assume that ANY 7200.11 series drive is going to need a firmware update. So when I see my 750s have .AEG firmware and I've found AEK, I assume that they released an update to correct a problem.

What I experienced in reality is that these are significantly slower drives than the 1TBs that replaced them, and who knows? Maybe the firmware update slowed them down.

These are Barracuda ES drives, so you'd think they'd be on the higher end of performance. I'll call Seagate back and see if they have another firmware for me (the one I found was on some website that listed my unit specifically, so I thought it would be OK - maybe not).

Anyway, moral of the story - still stripe the outside partitions of multiple drives if throughput is of ABSOLUTE importance to you, but don't go out of your way to do it if it's not, as it doesn't make THAT much of a difference. Faster drives are SO much more effective, and they are one of the primary determinants of your system's speed, since they are the data bottleneck. The higher the density per platter, the more of a difference it will make in speed increases.

JP

I wasn't thinking in terms of performance, though it does happen, but rather it was causing some issue such as stability (drop outs). :confused:
 
Yeah, I pretty much assume that ANY 7200.11 series drive is going to need a firmware update. So when I see my 750s have .AEG firmware and I've found AEK, I assume that they released an update to correct a problem.

What I experienced in reality is that these are significantly slower drives than the 1TBs that replaced them, and who knows? Maybe the firmware update slowed them down.

These are Barracuda ES drives, so you'd think they'd be on the higher end of performance. I'll call Seagate back and see if they have another firmware for me (the one I found was on some website that listed my unit specifically, so I thought it would be OK - maybe not).

Anyway, moral of the story - still stripe the outside partitions of multiple drives if throughput is of ABSOLUTE importance to you, but don't go out of your way to do it if it's not, as it doesn't make THAT much of a difference. Faster drives are SO much more effective, and they are one of the primary determinants of your system's speed, since they are the data bottleneck. The higher the density per platter, the more of a difference it will make in speed increases.

JP
Keep in mind, the enterprise models are usually a little slower than their consumer counterparts (i.e. ES.2 vs. 7200.11 in this case). That's part of the trade-off for the added reliability (added latency due to the additional sensors). ;)
 
Keep in mind, the enterprise models are usually a little slower than their consumer counterparts (i.e. ES.2 vs. 7200.11 in this case). That's part of the trade-off for the added reliability (added latency due to the additional sensors). ;)

i take it they use different data error checking algorithms? do these also effect latency etc?
 
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