Source: THG – Keywords: hyperdrive4, ssd
Categories: Hardware
Access Time
HyperOS claims an 1,100 ns read seek time and 250 nm write seek time. The total access time, measured by c’t magazine’s h2benchw benchmark, was 0.04 ms. In any case, access time can be considered effectively eliminated here. The SanDisk Flash SSD5000 takes roughly twice as long to access read data.
Interface Bandwidth
These results really are impressive: Using the Areca ARC1280ML controller with its cache memory, the total bandwidth is 562 MB/s for a single HyperDrive 4 and 603 MB/s for a RAID 0 that consists of two HyperDrive 4s. A WD Raptor WD1500 seems to outperform a single HyperDrive 4, but this is only because the interface bandwidth test reads directly out of the hard drive’s cache memory, which of course saturates the SATA/150’s bandwidth. The interface bandwidth of the HyperDrive 4 actually represents its sequential throughput.
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But... I have been monitoring the progress of the Hyperdrives (or not!!) over the past few years... The Hyperdrive IV (long awaited) has been around for months... So why have THG taken so long to produce this article???
We get subjected to latest GPU wars (which never show MINIMUM framerates) or Intel CPU... Thats great when they introduce something new (Netburst->Centrino->Core) but otherwise is pretty dull... Time to put the innovation back in THG!!
As for the Hyperdrive IV its a crock of **** because HyperOS Systems _still_ have not sorted out a SATA-300 link for it!! Mind you at least it is no longer vapour-ware (like it was for 2-3 years of development post product announcment)... An SDRAM base Hyperdrive V (?) should saturate a 3Gbit link and only then will you totally kick the butt of any other drive on the planet!! The benchmarks results would change radically then!!
Ah looking forward to 2008!! Donations to the "Bob Build a Server Fund" gratefully received :-)
Bob
http://www.fusionio.com/
They have FAR more bang for your buck.
It will be expensive in the beginning (everything is in IT). Once this filters through to the normal user it will DESTROY anything that SATAII can throw at it. 100,000 io/s, the benchmarks speak for themselves.
doa_cp:
OK the price may be good but the life span isn't. The Hyperdrive will last a lot longer (with decent ECC RAM). Also I would rather have a generic SATA-2 interface than suffer the driver headaches of a PCIe interface. Could you ever install an OS on one - I doubt it!! (Especially Windows of course!!)
I am interested in the performance for RAID-0 cheap CF cards with SATA adapters hanging off a good RAID card with 256Mb+ of cache ram. 8x CF 8Gb cards could have interesting performance numbers!!
Also the individual CF cards could be replaced as they wear out and the investment in CF IDE-SATA adapters and Hardware RAID card amortilised over time... Still waiting, waiting, waiting for THG to pull their collective fingers out and do a decent article on this subject (and not the pansy assed one that came out this year).
Bob
what do you mean the life span is not very long? Its more than a hard drive, and just as good as a CF card.
I would think that drier support would be extremely good, it is aimed at the server market, but if they want windows sales then 2003 and XP are (almost) identical so drivers would not be a problem.
You are right about OS installation though, that is until mainbaords accept PCIe as a boot device (could wait a LONG time for that).
I don't know that I'd want to install an OS on it though, especially windows (think pagefiles!!).
I reckon that it will kick ass as a database/webserver storage solution, maybe just a bridge too far for "normal" pc users.
I guess just losing storage slowely ain't so bad (through wear leveling). I got a new Seagate HD in the Summer and last month one of the heads started aqua-planning on the harddisk. So you're right when you think of HD lifespans...
However I was pitting your PCIe drive against a bank of RAID-0 CF cards or a Hyperdrive V (?? - SATA-1 interface is a waste of money) Now the later may be expensive but it should last a longtime (SDRAM lifetime)!!
Bob