OK need some expert help! (whats faster)

[RX8]

Easy guys

OK i have seen 2 options i am interested in:

2 X 200GB Seagate Barracuda7 SATA[8MB] in Raid 1 or 0
£58 exc, £68.15 inc.

Manufacturer SEAGATE
Model Number ST3200822AS
Access Time (ms) 8.5ms
Buffer Size (Mb) 8
Bus Type SATA
Capacity (Gb) 200
Max Transfer Rate (Mb/s) 150
Physical Size 26.035 x 101.6 x 146.99
Platter Speed (rpm) 7200
Transfer Protocol Serial ATA


Or


1 X 74GB Western Digital Raptor 10K
£99.95 exc, £117.44 inc.


Now which setup is faster? Dont worry about the 300 GB difference in space but in raid its 120gb.

<font color=purple> MY FINGER IS ON THE BUTTON! </font color=purple>

 

[sjonnie]

<i>>Now which setup is faster?</i>

Faster at doing what? Setup 1 will have a faster continuous read/write benchmark in RAID0, it should be able to max out the PCI bus in which case give you a continuous read/write benchmark of around 100MB/s. If you are likely to have a disk access pattern that depends heavily on continuous read/write then maybe this is for you.

If you run setup 1 in RAID1 then security is more important to you than transfer rate.

There aren't many disk access patterns that depend heavily on continuous read/write though, most access patterns are random read with some write. The WD740GD excells at random access patterns due to it's higher rotational speed (=lower latentcy) and smaller size. The higher rotational speed gives it a significantly higher continuous read/write rate than a single Barracuda into the bargain. Consequently this drive will be faster than the RAID0 drive in almost every situation.

 

[RX8]

so will the 2 X 200GB Seagate Barracuda7 SATA be faster? betta value for money?

<font color=purple> MY FINGER IS ON THE BUTTON! </font color=purple>