Page 1:LaCie 4big Quadra--2 Big 4 You?
Page 2:Some Issues To Start
Page 3:LaCie 4big Quadra In Detail
Page 4:Inside The 4big Quadra
Page 5:Genie Backup Manager
Page 6:Test Setup, Access Time, Interface Bandwidth
Page 7:Transfer Diagrams Via eSATA
Page 8:Transfer Diagrams Via FireWire And USB
Page 9:Power Requirements
Test Setup, Access Time, Interface Bandwidth
|Processors||Intel Core 2 Duo E8500 (45 nm, 3.16 GHz, 6 MB L2 Cache)|
|Platform||Gigabyte P45T-Extreme, Rev 1.0, Intel P45 Express Chipset|
|RAM||4X 1 GB DDR-1066 Crucial BL12864BA1608, 4X 1024 MB, CL5-5-5-15 Timings|
|System Hard Drive||Samsung HD120IJ, 120 GB, 7,200 RPM, 8 MB Cache, SATA / 300|
|Mass Storage Controller (s)||82801JIR IC H10 RAID ( ICH10R)|
|Graphic Card||ATI Radeon HD 3850 512 MB|
|Performance Measurements||HDTach 18.104.22.168|
|I/O Performance||IOmeter 2003.05.10, Fileserver-Benchmark, Webserver-Benchmark, Database-Benchmark, Workstation-Benchmark|
|OS||Microsoft Windows Ultimate 64 Bit, Service Pack 1|
|Platform Driver||Intel Chipset Installation Utility 22.214.171.1248|
|Graphics Driver||Catalyst 8.11|
LaCie says that the 4big Quadra reaches up to 230 MB/s throughput via eSATA. We selected a RAID 0 to check the throughput, but we could not see more than 175 MB/s. Although four 7,200 RPM drives can theoretically reach approximately 400 MB/s in an ideal RAID 0 environment, 175 MB/s is still a good result.
As you can see, the maximum throughput clearly depends on the interface. The 175 MB/s we mentioned can only be reached on eSATA. FireWire 800 reached 80 MB/s, which is one of the best results we’ve seen on this interface. 40 MB/s is typical for FireWire 400, as is 35 MB/s for USB 2.0.
Access time depends on the RAID level you select: RAID 0 clearly is the fastest, providing a quick 13.9 ms average access across all four drives. RAID 5 takes as much as 18 ms for average access time, while a RAID 10 array or degraded RAID 5 array are slightly faster. These numbers, however, are only important if you intend to run applications off the 4big Quadra, which typically won’t be the case—this is a mass storage product.