HyperDrive 4 – Curiosità, Acquisti Futuri

marzo 19, 2008 at 9:57 pm (Extra) (, , , , , , , , , , , , )

HyperDrive 4 – l’Hardisk più veloce al mondo?

Ecco un articolo sull HyperDrive 4. in pratica è un hardisk che immagazina i dati su delle ram DDR1. Le ram sono piu veloci ed hanno tempi di accesso minore di qualsiasi hardisk. In questo articolo viene presentata la versione 16GB, quello che vedete al centro è una Flash SSD che permette di creare un backup dati in caso di mancanza di energia. Come potete notare dai bechmark ha una velocità di trasferimento pari a 140MB/s il doppio rispetto ad un HD SATA. Si ha un grosso miglioramento anche con 2 o piu di questi dispositivi in RAID. Pare che disponga di una batteria interna per permettere di tenere i dati sulle ram anche dopo lo spegnimento del pc, non oso immaginare cosa succederebbe se questa batteria interna andasse a buon fine :D. Presenta una interfaccia ATA 133 e SATA e possiamo inserirlo in uno scompartimento CD del nostro case.

 

2005 was the year of the RAM drive. Gigabyte and a smaller company called HyperOS released their storage products, which were both meant to replace the conventional hard drive with blazing fast SDRAM. Both provided an exciting look to the future of performance storage products, as they blow away any other hard drive. Gigabyte’s i-RAM was the faster solution, thanks to its SATA/150 interface, while the HyperDrive III was limited to UltraATA/100, but supported more memory. HyperOS wants to adjust the ranking with its fourth generation HyperDrive, which offers both SATA/150 and UltraATA/133 interfaces. HyperOS even calls its HyperDrive 4 the fastest internal hard disk in the world.

Memory is typically divided into volatile and permanent storage: your system memory or random access memory (RAM) is volatile, as the DRAM transistor states are lost when the power is gone, so any data stored goes as well. Flash memory, optical storage and hard drives, together with variations such as magneto-optical drives (MO) are considered non-volatile or permanent storage, because they preserve their contents even when they’re shut down. It is possible to convert volatile DRAM from its original use and turn it into a semi-permanent storage device. All you need is appropriate core logic and an energy source to feed power continuously; the result is referred to as a solid state disk.

While Flash memory is increasingly used for solid state disk products, it does have its downsides. It can compete with DRAM when it comes to read performance, and it excels conventional hard drives at random read operations. But its write latency still is horribly long – Flash SSDs still abandon the random write benchmark field to quick conventional hard drives. In this light, DRAM cells not only allow for quicker write performance, they often provide a lower cost per stored bit as well.

Bitmicro has been addressing the solid state market with various products during the last several years; most of them are designed for professional use. The two other products I’ve referred to, namely Gigabyte’s i-RAM and the HyperDrive III by HyperOS Systems, target the upper mainstream, as well as professional users. The Gigabyte solution is powered by a PCI expansion slot and a buffer battery to maintain the memory contents of the four DDR1 memory modules for up to 16 hours. HyperOS puts its product into a 5.25″ form factor, and hence supports eight memory modules for up to 16 GB of storage. The power supply, which consists of a small backup battery and an external PSU, doesn’t protect against long power outages. Again, Bitmicro has been the one to offer solid state drives with permanent backup storage included.

The HyperDrive 4 now comes with a combination of both Serial ATA/150 and UltraATA/133, eight instead of six memory sockets, a more powerful backup battery, and optional backup storage by means of a 2.5″ UltraATA drive.

 Benchmarks

Capability 1 WD
Raptor
2 WD Raptors 8 WD Raptors 1 HD4 2 HD4 RAID0 3 HD4
RAID5
4 HD4
RAID0
5 HD4
RAID5
6 HD4
RAID0
8 HD4
RAID0
9 HD4
RAID5
Base STR (H2BenchW) MB/s 77 150 590 140 244 243 486 486 729 877 728
Effective STR (HDTach) MB/s 88.75  164  640  300  342  340  520  525  775  890  740 
Burst STR (HDTach) MB/s 1262 1246 1240 1240 1253 1238 1246 1251 1245 1245 1250
Seek Time ms 8300 8500 8500 1 10 10 10 20 20 20 20 Swap File MB/s 86 103 120 207 280 280 348 351 269 267 269
Install MB/s 43 37.8 33 224 288 314 402 430 366 359 347
Word MB/s 270 214 158 719 773 711 738 751 673 655 620
Photoshop MB/s 150 233 316 285 437 437 765 786 750 745 740
Copying MB/s 234 437 800 643 983 1005 1300 1295 1229 1240 1260
Virus Scan MB/s 17 18.7 20.5 104 130 140 189 197 181 188 179
Combined Index MB/s 89.8 105.6 121.4 286.3 380.0 386.9 506.4 519.9 460.8 460.0 450.7
Max IOPS 365 630 2,000 51,500 55,500 39,250 55,600 37,000 54,250 55,000 36,250
1K file  IOPS 365 600 1,890 42,000 55,500 37,750 55,000 36,000 53,500 54,200 35,500
2K file IOPS 350 570 1,880 30,500 51,500 33,750 53,250 32,250 52,750 52,250 34,000
4K file  IOPS 340 550 1,870 20,000 36,750 23,000 51,000 27,000 50,250 50,500 30,750
8K file IOPS 330 540 1,860 11,500 21,750 13,500 40,000 17,000 45,000 44,750 24,250
16K file IOPS 320 530 1,850 6,500 9,000 7,500 22,000 9,000 30,000 32,500 14,750
32K file IOPS 310 520 1,800 3,500 4,500 4,150 11,400 4,500 15,900 15,900 8,500
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