Eugene

Seagate Barracuda 7200.9

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I've running 8 * 500 GB of them in my fileserver, this kicks ass.... they're running now for two months without any problems...

cheers

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Guest 888

Every different capacity model in this 7200.9 series is so much different that in fact we can't make general conclusions about its reliability.

But yes, this 300GB model looks something weird now. At first it is slower and noisier than was expected. And now adding that NewEgg feedback where almost every second drive was failed! But it may very probably be just a bad batch they got in stock at NewEgg... It's better to wait for some time now and see how the things will go in future with this model.

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I *just* bought a Seagate Barracuda 7200.8 (I think?) ST3400632A 400GB.... besides platter density, what are the other differences between the 7200.8 and 7200.9 drives? I've also read some have reliability issues?

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Guest 888
I *just* bought a Seagate Barracuda 7200.8 (I think?) ST3400632A 400GB.... besides platter density, what are the other differences between the 7200.8 and 7200.9 drives? I've also read some have reliability issues?

Some sources said that 7200.8 used TMR heads but 7200.9 went back to the good old GMR heads. I don't know if this is true or just a speculation...

Seagate has announced that 7200.8 was a new construction but 7200.9 was constructed taking the best of 7200.8 plus best of older legendary 7200.7 series.

Yes, the reliability for 7200.8 dropped dramatically in comparison to very reliable 7200.7 series.

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Seagate's new Barracuda 7200.9 essentially rolls the older 7200.8 and 7200.7 lines into one all-encompassing family that delivers a wide range of capacities available in both the PATA and SATA interfaces. Bumping its design to four platters, Seagate has delivered 500 of capacity. StorageReview puts the firm's highly-anticipated flagship unit to the test and stacks it up agains the competition.

Seagate Barracuda 7200.9 Review

how about a review of the 750gb monstrosity?

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Models are only added to the reliability database when they've been reviewed.

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What will be the platter sizes of the 200, 250, 300 gig drives?

At least we can find the number of platters for 7200.9 series from the model #:

160 GB - ST3160812A(S) = 1 platter (160 GB one; which is probably also used in 120/80/40 GB HDDs)

200 GB - ST3200827A(S) = 2 platters (may be 100 GB platters but may be also cut-off 133, rare if 160)

250 GB - ST3250824A(S) = 2 platters (probably 133 GB ones with small cut-offs, 160 is less probable)

300 GB - ST3300622A(S) = 2 platters (this means really 160 GB ones with small cut-offs)

400 GB - ST3400633A(S) = 3 platters (must be just 133 GB ones)

500 GB - ST3500641A(S) = 4 platters (as we know they are 133 GB ones with small cut-offs, or 125 ?)

Note: This is not an official information, just some figuring out... No guarantee if this is all correct!

By the way I was referring the above post, not the article. ......oops, I just noticed 888's "Note" at the end. Sorry, my mistake.

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Has Seagate dropped the production of 7200.9 drives with 8 MB cache and is only producing the 16 MB version ?

Also are there any (other) known differences between the two versions, even if subtle ?

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Guest 888
Has Seagate dropped the production of 7200.9 drives with 8 MB cache and is only producing the 16 MB version ?

Also are there any (other) known differences between the two versions, even if subtle ?

16MB cache is for 7200.9 500/400/300/250GB SATA&ATA

8MB cache is for 7200.9 250/200/160/120GB SATA&ATA + 80GB SATA

2MB cache is for 7200.9 160/120/80/40GB ATA

As you see, there's minimal overlap. And I did not remember it to be changed.

200GB and bigger models will drop soon, after the 7200.10 is completely in production.

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Planning on grabbing those 7200.9 300gb 16mb drives when I have the cash. Should I wait for the 7200.10s?

IMO I would get the 7200.9 if you can get a good price I picked up a retail kit with 16MB cache for $72 (back in June '06) after MIR. I also got the 7200.10 (in July '06) from newegg (paid $105) they are now (as of 7-19-2006) for $94.00.

I can't honestly tell real world difference between the drives. If you can't get the 7200.9 for a good price then get the 7200.10 from newegg.

BTW fry's has the SATA II 400GB 7200.9 16mb cache for $140 with no MIR and the PATA version of the same drive for $120. Not sure how long this price is good thru.

Good luck.

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I guess because they haven't been reviewed yet. Though the Seagate Barracuda ES is the enterprise version of the 7200.10, and should have similar results, while the Barracusda ES.2 is the enterprise equivalent of the 7200.11. Since they are based on the same hardware with practically identical firmware, I think the ES drives are a fair representation of 7200.10 and 7200.11 performance.

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