Hitachi's 500GB SATA-II Reviewed 309
Doggie Fizzle writes "The specifications for the Hitachi Desktstar 7K500 are impressive. 500 GB of disk space, 16 MB of cache memory, and 3.0 Gbps of transfer speeds are about as good as you are going to get in today's hard drives. The only category that might be rivaled is transfer speed, but that would require RAID or an Ultra320 SCSI drive to do so. This BigBruin review matches it up with some Seagate drives to show off its performance."
3 gbps? (Score:3, Interesting)
Re:3 gbps? (Score:3, Informative)
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:5, Informative)
SATA-II indeed supports that. So does the disk. From cache.. No way it reaches more than 50MiB/sec from the platters, which is what counts. So I think it should be dead easy to rival speed with raid. My 6 year old IBM 18.2GB UltraStar drives read 25MiB/sec, so 3 of them would outperform in read/write. But would not take that much data...
So, indeed, it is a large disk, but it is not extraordinarily fast. Of course, bigger disks means more data per second, since the platter size is the same. Then data has to be packed more densily, and more data passes under head per second. So the disk can read more, in a sequential read.
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:3)
SATA-II indeed supports that. So does the disk. From cache.. No way it reaches more than 50MiB/sec from the platters, which is what counts.
So true. I'm not really understanding the point of having such a large on-drive cache. I think the money is better spent on adding RAM to the main computer because the OS does a lot of caching too. A multi-tasking OS on hardware that has DMA capabilities seems to make large on-drive caching un
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:3, Informative)
I believe that while the system's cache excels at saving disk reads (in fact it's faster and more effective than the disk controller's cache ever could be) the disk controller's cache can offer significant acceleration for disk writes. The system's cache can only postpone writes, not accelerate them. With a controller cache, data may be dumped to the disk controller at the full bus speed, rather
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:2)
That is an old and invalid example, the invalidity isn't necessarily because it is old.
K6-II / K6-III doesn't apply because the basic cache arcitecture is different. for II, the cache was expected to be on the main board, outside the FSB, for III, the cache was put on-die, inside the FSB.
For more relevant comparisons, see the comparison between 512MB and 1MB cache
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:2)
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:2)
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:2)
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:4, Informative)
From the spec sheet:
Sustained data rate (MB/sec) 64.8 - 31 (zone 0 - 29)
Re:3 gbps? 3 gbps? Is that 375 MB/s? IDE/SATA does (Score:2)
You loose 20% of the bandwidth for parity, so it ends up being 300MB/s.
HJ
Do the differences matter for "most people" (Score:3, Insightful)
Yes, yes, I know we are the 5%.
-m
Re:Do the differences matter for "most people" (Score:5, Insightful)
Not everyone can afford a backup solution, some rely on raid protection, and others rely on a lucky rabbit's foot. Since I am in the 2nd category, (mirrors on anything that matters) I tend to actually look at cost per gb as the primary factor. If a drive fails, I send it in and get another one and resync the mirror. Every drive I buy has at least a 3 yr (if not 5) warranty. In the end, buying cheap drives is more cost effective than buying good drives, and is a lot more cost-effective than buying say a nice DLT drive and a pile of carts. (tho yes, mirror has pretty poor return on cost because of 50% usable space)
As long as I don't have to like swap out a drive more than once a year, I'm quite happy with reliability of even Maxtors. (though I still am not confident enough in my raids to install WD)
That being said, I wouldn't mind accquiring a pair of those 500's, though lately it's been getting a little tricky to find a FW bridge board that supports the really large drives. The last 300 pair I installed, (seagate even!) only one of the 14 bridge boards here would detect at 300. (instead of 128) Yes, they're all ATA6 and have up-to-date firmware, that doesn't seem to matter. WD uses their own "unique variation" on ATA6 for their big drives, so those are really fun to work with, I avoid them like plague.
Re:Do the differences matter for "most people" (Score:3, Insightful)
Now mirror doesn't protect from software/hardware controller malfunction, no
Hitach's? (Score:5, Funny)
Re:Hitach's? (Score:2, Insightful)
There's a difference. (Score:5, Funny)
Re:Hitach's? (Score:2)
It's not SATA II (Score:5, Informative)
It's instead, SATA 3Gb/s. Most motherboard manufacturers jumped the gun however and invented their version.
Matt
Re:It's not SATA II (Score:2)
Yet another useless submission.
http://www.anandtech.com/storage/showdoc.aspx?i=2
Re:It's not SATA II (Score:5, Informative)
Re:It's not SATA II (Score:2)
Why? SATA-II is an obvious successor name. SATA-IO doesn't communicate that fact, or anything else, IMO. I expect another batch of confusion like extended RAM/expanded RAM, PCI-express/ PCI-eXtended and so on
Re:It's not SATA II (Score:2, Informative)
Deskstar? (Score:2, Interesting)
I'm guessing the newer Hitachi line of SATA drives no longer carries the IBM Deathstar plague, but I'd like some assurance before plunking down cash on it. In the meantime, I'll tolerate the performanc
Re:Deskstar? (Score:3, Interesting)
At the moment, I am going with Seagate. 5 year warranties. I don't have enough personal
Deathstar and IBM customer satisfaction (Score:4, Informative)
Anyway, if IBM thinks that's acceptable, I won't ever be buying one of its disks.
Re:Deathstar and IBM customer satisfaction (Score:2)
Re:Deathstar and IBM customer satisfaction (Score:2)
Re:Deathstar and IBM customer satisfaction (Score:2)
Maxtor bought them so now I buy Maxtor.
Lumping ANYONE in with Fujitsu who make the worst drives in the universe by orders of magnitude really stings.
DON'T BUY FUJITSU HARD DRIVES.
Re:Deathstar and IBM customer satisfaction (Score:2)
Honestly, I worked in a local computer repair shop part time when I was in college, and recently, no drives fail like Maxtors. Yes other drives fail and people brought them back for replacement, but not nearly in the volumes that the Maxtors did. Even the kid who bought 4 Maxtor drives and a Promise RAID controller for RAID 0+1 had 3 of those drives fail within a 2 month timespan.
Re:Deathstar and IBM customer satisfaction (Score:2)
They were extremely loud, very unreliable, and *VERY* slow - 4200RPM. If you still do work on these computers, upgrade your customer to a 7200RPM, they will love you. IIRC, these drives were primarily used in Presarios.
Re:Deathstar and IBM customer satisfaction (Score:2)
On the other hand, if the machine was ever powered down and back up and the disk started spinning again, it probably wasn't Quantum.
Re:Deathstar and IBM customer satisfaction (Score:2)
But this is one of those issues where it's ridiculous to put much stock in anything other than comprehensive reliability studies because when you lose a hard disk its impact goes from serious inconvenience to your life is fucked for the next year so people remember which drives did them bad lol. Lots of drives
Now I can lose even more data... (Score:2, Insightful)
Deathstar (Score:3, Funny)
Its like hearing about a new form management tool from Claria.
Hitatchi Deathstar (Score:5, Funny)
Re:Hitatchi Deathstar (Score:5, Informative)
Deathstar disks was a problematic series. It was the DeskStar 75GXP, the 75GB disks from IBM. They was using 5 platters, instead of the normal 4, in the same height. This meant denser packed plates, which ment less space for heads. This crashed. But other disks from IBM was entirely fine.
Here [ufl.edu] is a page with more info on the DeathStars. And Yes, I've been using many IBM/Hitachi disks, and never had problems with the 4-platter versions. It was just that 5 platters was kinda exprimental...
Re:Hitatchi Deathstar (Score:3, Insightful)
No, it wasn't just the 75GB disks, it was the entire series of disks using 15GB platters. They were notoriously unstable, one day you'd boot to the "click of death". If you look at the class action here [ibmdesksta...gation.com] IBM has agreed to settle. Make your claim by August 29, 2005. I lost a 45GB drive to this shit, but I'm not in the US so I don't qualify... I got mine replaced under my own country's consumer protection laws.
Kjell
Re:Hitatchi Deathstar (Score:2)
Re:Hitatchi Deathstar (Score:5, Informative)
Closer, but it's even more detailed than that. It was the entire series of platters produced at one particular fabrication plant. Which is why you get such varied reports about them - the same drives were made at (at least) two plants, and only one of them was broken (the cause was a bad retooling when they started that line of disks, or something like that).
Re:Hitatchi Deathstar (Score:2)
Re:Hitatchi Deathstar (Score:2)
Might be. I recall there was a 60GiB, and a 120GiB version that was also 5-platter. Might be a 40 too, but I'm not sure of that. The best advice is to check how many platters there is.
Re:Hitatchi Deathstar (Score:2)
Considering how drive makers like to market their drives, its's quite likely that these drives were not 60 GiB and 120 GiB, but instead 56 GiB and 111 GiB. (Because the drives were 60 GB and 120 GB, where 1 GB = 1 billion bytes, rather than 60 GiB and 120 GiB, where 1 GiB = 1.07 billion bytes.)
Personally, I dislike the GiB/MiB designations (they just look wrong) but at least they're precise. I wish that the drive manufacturer
Re:Hitatchi Deathstar (Score:2)
Re:Hitachi Deathstar (Score:2)
Re:Hitatchi Deathstar (Score:2)
Wooo (Score:4, Funny)
Caveat Emptor! loud screeching noises (Score:4, Informative)
Little did I know when I bought it that every 15 minutes it would make a loud screeching noise as it performs a self-check.
There's no way to turn this off and it's über annoying. It's a lovely drive in all other respects, but I won't buy another unless I know for a *fact* it doesn't behave in this way.
--
Toby
Re:Caveat Emptor! loud screeching noises (Score:2)
Re:Caveat Emptor! loud screeching noises (Score:3, Informative)
smartctl --offlineauto=off
Re:Caveat Emptor! loud screeching noises (Score:2)
For the record, i've recently purchased a 80gb 7200rpm Hitachi Deskstar after a faulty psu burned my old trusty Seagate. I needed the drive in a hurry, and was a little bit uneasy with the Hitachi drives (you know, ex-IBM...), but after 6 months of non-stop server use i have to say they're excellent. Fast, reliable, and very quiet - not as much as the Seagate Barracudas, which you couldn't tell if they were running or not, but close.
Sea
Re:Caveat Emptor! loud screeching noises (Score:2)
The "chirp" is thermal recalibration. All hard drives do it. You can't turn it off and you don't want to.
Reliability? (Score:2, Insightful)
Re:Reliability? (Score:2)
I wouldn't take one of these drives if you gave it to me.
Re:Reliability? (Score:2)
LATENCY LATENCY LATENCY (Score:4, Interesting)
LATENCY is what is causing the slow performance of hard drives, who cares what the MB/s is (its good enough) its the latency that kills you more than anything RAID will not increase LATENCY. RAID can only make things more complex and make it worse (no system can be 100% efficient). RAID can increase MB/s but as I've allready said that isn't a big deal. What we need is lower latency Hard drives. We have enough storage. I don't need 500GB I want good latency.
Re:LATENCY LATENCY LATENCY (Score:2)
Mirroring two (or having identical content on many disks will decrease latency, since the disk with the heads closest to the content can hand it out. Besides, those shiny new 147GiB 15KRPM drives have 3.5ms average seek time, around 35% of that of a normal 7.2KRPM disk. This is a huge difference. If you have two of those in mirro
Re:LATENCY LATENCY LATENCY (Score:3, Informative)
Unless, of course, you ever write data. If you do, then the heads on both disks will be in the same place and so take the same amount of time to seek.
Re:LATENCY LATENCY LATENCY (Score:4, Insightful)
You can always improve your seek time by adding more redundant mirrors. If we apply the formula the formula seen here [img113.echo.cx] where x is the number of redundant mirrors, we can calculate the value of p which will give us our rotational latency for the mean seek time (hence the 0.5 because we want the 50% point for seek times).
Using this you can get 7200rpm drives to easily outseek a 15000rpm drive by using 4 or more redundant sources, and it's still cheaper for the same capacity, AND more failure tolerant.
This is why RAID always wins. Quantity has a quality all its own. SCSI used RAID to defeat the SLED concept in mainfraimes, commodity drives are doing the same to SCSI, by playing with the same rules.
Re:LATENCY LATENCY LATENCY (Score:2)
Re:LATENCY LATENCY LATENCY (Score:2)
You are right, because most forms of RAID decrease latency.
The more platters you have, the higher the chance that one of the heads is close to the needed data. Thus, for a constant size array, the more disks in your array, the lower your average latency. In other words, four 250GB drives in a RAID will have produce a better average latency than two 500GB drives in a RAID would.
This is why RAIDs of 2.5" disks are the hot new thing in the storage market. You get a lot more
Re:Why don't you explain what you mean... (Score:3, Informative)
It's the same with RAM, networks, Drives.. you ask for data, and there is a slight delay while the system gets itself set to give that data to you. Usually, once you've started retrieving that data, the rest comes really quickly as its cached, or otherwise stored sequentially.
ie. Imagine a drive with a file stored bit-by-bit in sequence. You ask for the file, once the heads have moved to the right point, the drive will read all the bits and return them
MOD Parent up! (Score:2)
NCQ actually increases latency in desktop usage profiles due added overhead. In only can show its benefits if there are long queues of outstanding transactions, which rarely happens outside server usage.
Queuing (Score:3, Interesting)
Jerry
http://www.cyvin.org/ [cyvin.org]
Re:Queuing (Score:4, Informative)
Google NCQ for more info than you need
500GB finally? (Score:3, Interesting)
Re:500GB finally? (Score:2)
Drive sizes will go up again, but not until mainstream users discover divx or its next counterpart.
Honestly I think we only have 200-250Gb disks now because of MP3, when you buy a dr
Re:500GB finally? (Score:5, Insightful)
Not many consumers need 500GB of HD space in their computer for email and AOL. But 500GB would sure be useful in a Hi-Def PVR. But PVRs are still such a small segment compared to PCs.
Plus, tech wise, we're basically at the top of the S-Curve for the current HD technology. So we need to get the new technology and start the S-Curve all over again. We had a lot of advances when we went from 10GB HDs to 40 and 60GB HDs (one new larger capacity annoucement every quarter almost), but we've started to slow down and stagnate. I'm hoping things get going again soon and we make big advances from 1TB, 1.5TB. 2TB drives.
Re:500GB finally? (Score:2)
Don't underestimate the demand for 500GB. The thing is, there's little demand for 500GB in a 3,5" form factor. Usually you can afford to use two HDD slots, and the collector junkies have a midi/maxi-tower or a separate file server with room for even more. 2x250GB is much better value. I've considered getting a 400GB external disk though, as there seems to be a fixed "add-on" price
Re:Yes, we have hit a limit (Score:2)
Re:Not according to Hitachi's Flash Animation (Score:3)
The reviews elsewhere (Score:3, Insightful)
Re:The reviews elsewhere (Score:2)
Increased areal density is a good thing. Not a bad thing. A drive with a higher areal density is a faster drive. It is also more secure. It is more difficult to extract data from the platters.
You are correct about the 100GB/platter though. This drive is less technologically advanced than Seagate's 7200.8. Hitachi has this habit of just piling on the platters. The deathstar had 5 platters too. This submission looks like ad copy
Price per GB... (Score:3, Informative)
Max bus speed != drive speed (Score:2)
Re:Max bus speed != drive speed (Score:2)
Re:Max bus speed != drive speed (Score:2)
Bah (Score:2)
-Very steady- around 80MB/s sustained throughput from the beginning of the array to the end. Peaks of 104MB/s. Troughs of like 72MB/s.
According to this review [hi-techreviews.com] this 500GB Hitachi starts out at 65MB/s and trails off to a pathetic 35MB/s.
Half a year later, now seen at Slashdot (Score:2, Interesting)
deathstars (Score:5, Informative)
We might have one deathstar in the building that still works, and if I find it I'm replacing it. Save yourself the headache, do not buy deathstars. When maxtor bought quantum, maxtor adopted quantum's designs, and now produces decent drives. Hitachi bought IBM's drive line, but they just inherited the crappy deathstar design and that's what they're selling.
The only model of drive I have seen perform as bad as a deathstar is the old Quantum Fireball 6.4gb's, which tended to smoke their spindle motor controller IC. At least those you could swap controller cards and save your data.
Re:deathstars (Score:2)
I had an IBM Deathstar that was replaced under warranty with a nice crappy loud Western Digital drive, so it's not like I'm a fan either.
But seriously, do you think the Hitachi drives have anything to do with the old 5 platter [slashdot.org] ones?
Admit it, Deskstar is a fairly cool name, especially when compared to codenames like Longhorn, or product names like Windows Vista. It's so cool that you can call it Deathstar, and it has the heritage to live up to that name! How cool is that?
"Hey baby, I've got a Deathstar
Big, but noisy? (Score:3, Insightful)
Just the quietest.
Recent Hitachi experience... (Score:5, Informative)
I attempted to return a failed IBM Deskstar last year only to be told I would have to return it to the US, not the Canadian centre I had used in the past.
I explained repeatedly that I had always returned HDs of all makes to Canadian centres and that it was prohibitively expensive to ship a DEAD HD to the US.
Hitachi didn't care. I have never bought a Hitachi drive since and never will.
I have been using Seagate HDs because of their 5 year warranty and have not had a single failure to date. Seagate = cool, quiet and reliable.
Goodbye IBM/Hitachi, Hello Seagate.
Brian
Personal Media Vaults (Score:3, Insightful)
But the biggest change we have right now is the ability of individuals to have lots of items of the same old size. People watching their own videos from their own libaries of hundreds of movies. Listening to their own songs from their own libraries of hundreds of thousands of songs. Those apps require huge storage, like hundreds or thousands of GB, for a single person. But they therefore don't require high bandwidth transmission. A 5400RPM EIDE drive is plenty fast enough, but it still needs 500GB capacity (which density might require the higher RPM, but not the faster interface, caches, etc). And for consumers, the overhead for IO bandwidth is a waste of money. As is more than maybe 2 or 3 drives for RAID failover, which also demands cheaper drives.
Hitachi's 0.5TB SATA-II drive is targeted at datacenters and multiuser servers, with money for bandwidth. So where are the cheap, huge, Personal Computer drives? Say, 500GB EIDE for $250?
Pros and cons (Score:3, Funny)
On the one hand it allows me to store more pr0n.
On the other hand, it allows me to lose more pr0n when the HD crashes.
Decisions, decisions.
What are the legal use ? (Score:4, Funny)
TV Library. (Score:3, Interesting)
Audio production (Score:3, Interesting)
I have a folder on my disk where I'm just playing around, not even doing any serious production, with a couple of 5.1 mixes in different formats. It's 6GB.
I'm sure HD video production is even worse, but I don't do that.
Re:Doggie Fizzle (Score:3, Funny)
Re:Doggie Fizzle (Score:2)
Re:How long would it take? (Score:2, Funny)
This is easily one of the most overused jokes on slashdot, and quite frankly, I'd like to meet the person whose requirement for porn is wholely limited by the size of his disk.
I said disk size. Get your mind outta the gutter.
Re:How long would it take? (Score:2)
Re:How long would it take? (Score:4, Funny)
--Ender
Re:RPM ? (Score:3, Insightful)
Yes, but... (Score:2, Informative)
Re:RPM ? (Score:3, Informative)
$175 for a 75 GB SATA Raptor
$400 for a 7K500
$600 for a 300GB 10K Seagate SCSI
The 7200RPM drives are a much better balance for speed, capacity and cost. Part of the reason 10k drives are lower
Re:RPM ? (Score:3, Informative)
Anyhow, in RAID 0 configuration, they are pretty snappy. I've got a pair of Rapors as my main OS/Program drive, and had these as my data/work drive. The heat difference is noticeable between the Raptors and the Deskstars. A bit of a performance di
Re:RPM ? (Score:3, Insightful)
Re:Unfortunate name (Score:2, Funny)
Oh, you have got to tell us the story on that one...
Re:Unfortunate name (Score:2)