存储设备规格参数比较

 【出处】http://zh.wikipedia.org/wiki/SATA

 

名称	带宽 (Mbit/s)	速度 (MB/s)	接线最大长度 (m)	电源供应	每频道最多可接设备
eSATA	3,000	300	2 with eSATA HBA (1 with passive adapter)	否 [2]	1（15 with port multiplier）
串行SCSI	3,000	375	8	否	4
SATA 6.0Gb/s	6,000	600
SATA 3.0Gb/s	3,000	300	2	否	1（15 with port multiplier）
SATA 1.5Gb/s	1,500	150	1	否	1 per line
PATA 133	1,064	133	0.46（18 英寸）	否	2
FireWire 3200	3,144	393	100; alternate cables available for 100 m+	15 W, 12–25 V	63 (with hub)
FireWire 800	786	98.25	100[3]	15 W, 12–25 V	63 (with hub)
FireWire 400	393	49.13	4.5[3][4]	15 W, 12–25 V	63 (with hub)
USB 3.0	5,000	500
USB 2.0	480	60	5[5]	2.5 W, 5 V	127 (with hub)
USB 1.1	12	1.5
USB 1.0	1.5	0.1875
Ultra-640 SCSI	5,120	640	12	否	15 (plus the HBA)
Ultra-320 SCSI	2,560	320
Fiber Channel 通过铜线	4,000	400	12	否	126 （16777216 with switches）
Fiber Channel 通过光纤	10,520	2000	2–50000	否	126 （16777216 with switches）
Infiniband 12X Quad-rate	120,000	12,000	5 （铜线）[6][7] <10000 （光纤）	否	1 with Point to point Many with switched fabric

 

http://en.wikipedia.org/wiki/IOPS

Device	Type	IOPS	Interface	Notes
7,200 rpm SATA drives	HDD	~75-100 IOPS[2]	SATA 3 Gb/s
10,000 rpm SATA drives	HDD	~125-150 IOPS[2]	SATA 3 Gbit/s
10,000 rpm SAS drives	HDD	~140 IOPS[2]	SAS
15,000 rpm SAS drives	HDD	~175-210 IOPS[2]	SAS

Device	IOPS	Interface	Notes
7200 RPM SATA drives	~90 IOPS	SATA II
10k RPM SATA drives, queue depth 1	~130 IOPS	SATA II	fio -readonly -name iops -rw=randread -bs=512 -runtime=20 -iodepth 1 -filename /dev/sda -ioengine libaio -direct=1
10k RPM Serial Attached SCSI drives	~140 IOPS	SAS
15k RPM Serial Attached SCSI drives	~180 IOPS	SAS
10k RPM SATA drives, queue depth 24	~290 IOPS	SATA II	fio -readonly -name iops -rw=randread -bs=512 -runtime=20 -iodepth 24 -filename /dev/sda -ioengine libaio -direct=1
Simple SLC SSD	~400 IOPS	SATA II
Intel X25-M G2 (MLC; As of March 2010)	~8,600 IOPS	SATA II	Intel's data sheet claims 6,600/8,600 IOPS (80GB/160GB version) and 35,000 IOPS for random 4KB writes and reads, respectively.
Intel X25-E (SLC; As of March 2009)	~5,000 IOPS	SATA II	Intel's data sheet claims 3,300 IOPS and 35,000 IOPS for writes and reads, respectively. 5,000 IOPS are measured for a mix. Intel X25-E G1 has around 3 times higher IOPS compared to the Intel X25-M G2.
OCZ Z-Drive e84, a PCI Express SLC Solid State Drive	16,000 IOPS	PCIe	Maximum read/write speed of 800/750 MB/s).
G.Skill Phoenix Pro et. al.	~20,000 IOPS	SATA III	SandForce-1200 based SSD drives with enhanced firmware, states up to 50,000 IOPS, but real-world performance shows for all drives from different manufacturers ~25,000 IOPS for random read and ~15,000 IOPS for random write.
ioDrive, a PCI-Express card with Flash	140,000 Read IOPS, 135,000 Write IOPS	PCIe
ioDrive Duo	250,000+ IOPS	PCIe
DDRdrive X1, a May 2009 PCI Express based solid-state drive	300,000+ (512B Random Read IOPS) and 200,000+ (512B Random Write IOPS)	PCIe
Texas Memory System RamSan-20	120,000+ Random Read/Write IOPS	PCIe	Inlude RAM cache and UltraCapacitor to preserve the memory non-volatile
Texas Memory System RamSan-630 Appliance	1,000,000+ Random Read/Write IOPS	FC / InfiniBand
Violin Memory Appliance	1,000,000+ Random Read/Write IOPS	Proprietary interconnect
ioDrive Octal (single PCI Express card)	1,000,000+ Random Read/Write IOPS	PCIe