Seagate Momentus 7200.5 750GB 7200RPM Hard Drive - ST9750420AS

This

And higher capacity ---> lower access time --> better performance. Plus for the same price you can get a 2TB hard drive, why settle for 750GB?

 

Yeah you're right about the performance. I didn't mention it because it may not be so important for NAS.

 

Does the performance difference worth the extra power consumption and noise etc. ?

I would assume that a NAS would be mostly accessed via network and even a Gbit link may not be able to saturate a good and fast 2.5" 7200rpm.

Just wondering.

 

hmm... The power consumption is not that much different. And yes I'm pretty it's worth it. Plus, it's cheaper. Also, if it's on a network with everyone accessing it, you want to go for the bigger ones.

 

The reason I asked is that I am seeing a trend that more and more rack mounted server is switching to 2.5" HDD and I based on my occasional use of some of those USB enclosure, I found the noise to be quite annoying and definitely don't want to have such a thing running in my room 24/7.

Personally, I would opt for a NAS that can take 3+ 2.5" HDD running in RAID-5.

Well, again this is a very subjective thing and really depends on what kind of storage one needs.

 

Power consumption and noise don't have to be a problem. Certain 3.5" drives are optimized for it.

 

Should I get this (more space, but reliability uncertain) or go for samsung's 640gb? I need to pick soon but what's making this so difficult is the similar price between the two :/

If the 640gb dropped to 70 I'd take it....

 

This drive is now $100 with free shipping using coupon code: EMCZZNN28

I'm buying one now...

 

If it's for your OS I'd go for the Samsung.

 

so u mean samsung 640gb 7200rpm is very fast drive compare to 7200.5?

i'm jus wondering m i regret getting this drive...

 

Actually I'm not sure. I think it is, going by the AS-SSD File Copy results.

I've tested the Seagate 7200.5, but not the Samsung HM640JJ.

WD5000BEKT, Hitachi 7K500 and Momentus XT (w/o cache) are definitely faster than 7200.5.

 

3.5" drives are larger and heavier.

 

But for a NAS who cares? It just sits in one spot.

 

any idea when wd 750gb 7200rpm will be out?

 

Yeah, that's what I was thinking too.. I wouldn't want my primary hd to fail on me on bootup :/

but then again, 100 more gb for just $10 more....

but still, i can always pick up another hdd when i need it, at a cheaper price, maybe even an ssd.....

come on! money is no object!

k samsung it is.

 

What's up with this "failing" and Seagate? Is it horrible percentage? Or what? First I've heard of it.

 

I don't know, I have 4 running here and not one has failed for 2 years now.

 

Which 1TB HDDs I must've missed it?

Big reason is, noise. 2.5" harddrives are more silent. I live in a single room at the moment with my work desk, TV, computer, bed etc. all in the same room. My NAS will be used primarily for music listening through my Sonos sound system (controlled via my Android phone). The NAS will allow me to listen to music without the humming of my PC (which I have also gone to great lengths to make silent. Therefore operation silence is of absolute essense. Storage size is secondary, speed waay tertiary.
The NAS will also be used quite frequently and every day so power consumption is also somewhat of concern. These are the reasons for 2.5". I'll happily pay more pr. GB for lower noise. My NAS is Synology DS409-Slim if anyone should be interested (been reading some great reviews for it).

If anyone have some suggestions for alternatives, I'll be very happy to hear them. I didn't quite understood if any has been made already, sorry. Otherwise I know what I'll wish for, for christmas

 

I got the 750GB Seagate. Any benches you'd like run?

I'm primarily using it as a storage drive, I know seems senseless right? Well it was the cheapest option I had for eSATA speeds since I already had an enclosure but would only accommodate a 9.5mm high drive.

 

hdtune, hdtach.

 

htwingnut,

I'd be interested in your AS SSD drive copy benchmark scores.

See:
http://forum.notebookreview.com/har...le-copy-result-hdds-ssds-easy-comparison.html



I believe they will be the highest that a mechanical HD can reach (even if used as an O/S and/or app drive it will be slower than some 5400 RPM drives).

So, I think that your primary use as a storage drive is spot on for this product. Curious to see any results.

Thanks!

 

Right now it's in an eSATA enclosure limited to SATA 150, but I don't think that will be a constraint. I also plan on utilizing compression since it will mainly be used for frequent backup and file transfers of my Steam game collection and ISO's.

 

Last week, I decided to get the ST9750420AS. I upgraded from a WD 160 GB 5400 rpm drive. As soon as I put the drive in, I realized that it runs quite hot. I knew that a 7200 rpm would naturally run a little hotter than the 5400 rpm drive I had before, but my old drive would range between higher 30's/lower 40s when idling and get up to mid/high 40s or maybe 50C max, under load. This drive idles in the mid 40s, sometimes low 50s, and under load has hit 61C. These temperatures seem unusually hot, especially since the operating temperature limit for this drive is 55C (I think). This drive is inside a HP dv6375us laptop that is about 3.5 years old. I realize that this laptop probably doesn't have the best airflow for the hard drive (the HD bay is pretty tight without a lot of breathing room) but my old drive ran a lot cooler. In the SMART status, there's a warning that the airflow temperature is below the average limits. In HD Tune, under airflow temperature, it says “Error! Threshold Reached! Replacing the drive is recommended.”

Yesterday, while backing up files to my external, the computer blue-screened (first time I've ever seen that with Windows 7!) with an NTFS error. When I restarted, the SMART status reported that there were 8 pending sectors that couldn't be written. After running ScanDisk, that has now gone away, but the computer crashed again while running an HD Tune scan (I was away from it so I'm not sure what the error was that time, but I came back and it had restarted), and HDD Regenerator reports no errors, but a delay in the first 1500 or so mb of the drive. The SMART status in Speedfan passes, but the raw error read rate, seek error rate, hardware ECC recovered, and Ultra DMA CRC Error Rate are only in the middle of the graph, at "normal" rather than "very good."

Due to the random errors, I'm considering returning the drive, either for a replacement or for the Samsung HM640JJ (the 640 GB, 7200 rpm 2.5" drive). What I'm wondering is whether the high temperatures are just a fault with this particular drive I have, or a general problem with this model. Has anyone with the Seagate drive had higher than usual temperatures? Could a defective HD run hotter than a non-defective HD? Are there any reviews/comparisons out there where the Samsung has been shown to run cooler than the Seagate? If it's just a defective drive causing the temperature issues, then I'll stick with the Seagate, but if all of these drives run so hot, maybe I'll think about exchanging for the Samsung.

 

I dunno. Wish I could help. Mine is running in an external metal enclosure and ran for a long time copying nearly 700GB of data (using NTFS compression) without issue. I plan on putting it in my new laptop when it comes (maybe two weeks or so).

I would say exchange it if you can and try another, and if not, get a refund. I sure hope it doesn't run hot. There goes my plans for 750GB of fast storage.

 

Thanks for the reply htwingnut. Yeah, my plan is to exchange it for a replacement. At this point, I'm assuming that it's the drive that's bad/defective and not just this model in general that runs hot. I read a review where it was placed into a dv2500 (basically the same laptop as mine, but in a 14" form factor), and it never got above 45C in all of the HD Tune tests. In contrast, mine was stuck idling at 53C and hit 61C while copying files. Because the drive ran much cooler in a laptop very similar to mine, I think it's safe to say that it's just this drive that I got that was bad. I hope that's it, at least! I'd rather keep this one for the 750 GB size. I know the Samsung 640 GB HM640JJ is a little faster, but for $20 more, I like having the extra breathing room that the 750 GB gives me for future use. So, I'll send it back and hopefully have better luck with the next one.

 

Good luck, hope it works out for you!

 

Full review of the ST9750420AS
http://www.notebookreview.com/default.asp?newsID=5970

 

phil,

1. does this seagate 750 gb 7200 hdd fare better than hitachi travel star 500gb 7K500 as far as noise/vibration/speed/heat/battery life go....?

( since you don't mention the 7K500 in your review )

2. if not then i'll wait for the upcoming travelstar 750gb 7K750.

thanks

 

rana_kirti the 7K500 is definitely faster in real life.

In noise and vibration there is very little difference, if any.

 

thanks phil,

the hitachi seems superior then...

i'm gonna wait for the 7K750 750 GB...!!

Cheers

 

And don't forget WD Black 750GB which is available now. It might be a good drive. Although Blacks tend to be slightly noisy.

http://forum.notebookreview.com/har...wd7500bpkt-750gb-7200rpm-western-digital.html

 

yes i had an eye on that as well... but there is a member named GP-SE. He first got a Scorpio Black 500 gb and found it too noisy and vibrating a lot in his macbook and then he got a 7K500 which he found to be just slightly slower than the scorpio black but much much better as far as noise and vibrations were concerned....

http://forum.notebookreview.com/har...grades/546191-hitachi-travelstar-7200rpm.html ( Post no # 9 )

seems to me that the 7K750 750 GB will be the most perfect HDD amongst all these new 750 GB 7200 RPM HDDs....!!

 

ya I have not seen the 7k750 for sale, in fact hitachi just got the 5k750 to market a couple of weeks ago.

I have this weird feeling that somehow the 5k750 is actually going to be faster than this seagate or else they wouldnt do that.

I dont know of any owners here but it was for sale for a few weeks in the beggining of jan.

http://www.newegg.com/Product/Product.aspx?Item=N82E16822145449

 

Hmmm. I'm not sure if it's faster. I just think the HD developers are taking a while to get their 750 GB 7200 rpm drives out there. Seagate had the one exclusive drive out there until WD just released theirs, and I've heard that the Travelstar will be out in the next few months as well. According to the first review that I read, the 750 GB Black is faster in basically every respect than the 750 GB Momentus. The Momentus actually isn't all that fast for a 750 GB 7200 rpm (but is still faster than the 5400 rpm 750s) so the 750 GB 5400 rpm Travelstar might be closer to that drive in perfomance, but that Travelstar is definitely slower than the Black. According to the review, the 750 GB Black is the fastest 2.5" mechanical drive out there in most respects (unless you count the 600 GB Velociraptor), beating out the 500 GB Black which was previously the fastest in a lot of tests.

By the way, I'm not a WD fanboy in any sense, although it might seem that way from the above. I like all the companies fairly evenly, and actually got the 750 GB Momentus first. I just ended up getting a defective drive (it ran unusually hot and had some odd problems) so I thought I would return it for the Black since the Black has been proven to be a little faster in reviews and has a longer warranty. But, my main external HD (for backup) is a Seagate Barracuda that's 3 or 4 years old and it's been great. So, if two drives have similar prices, I'll basically just get whatever's fastest, regardless of brand. I've had Seagate, WD, Hitachi, Toshiba, Samsung, Quantum, etc. drives before, and I've had similar luck with all of them.