Test Methodology
Client |
|
|---|---|
| CPU | 3.2GHz Intel Core i7 965 Extreme Edition |
| GPU | Sapphire Radeon HD 5850 1,024MB |
| Motherboard | ASUS P6X58D Premium |
| Memory | 2GB Corsair DDR3 |
| Network connectivity | Marvell Yukon 88E8056 GbE |
| PSU | Corsair HX1000W |
| Monitor | Dell 30in 3007WFP - 2,560x1,600px |
| Disk drive(s) | Corsair Nova V128 SSD |
| Operating system | Windows 7 Ultimate, 64-bit |
Network-attached storage configurations |
||||||||
|---|---|---|---|---|---|---|---|---|
| Buffalo LinkStation Pro LS-V1.0TL-EU |
Synology DiskStation DS210+ |
QNAP TS-259 Pro+ |
Synology DiskStation DS411+ |
Thecus N4200 |
Armari BrontaStor 4TE |
QNAP TS-439 Pro |
Thecus N7700PRO |
|
| Approx. price | £150 | Discontinued (was £275) | £475 | £475 | £465 | £500 | Discontinued (was £600) | £760 |
| CPU | 1.6GHz Marvell 88F6282A0C160 (single-core, 256KB L2 cache) |
1.06GHz Freescale MPC8533E (single-core, 256KB L2 cache) |
1.80GHz Intel Atom D525 (dual-core, 1MB L2 cache) |
1.66GHz Intel Atom D510 (dual-core, 1MB L2 cache) |
1.66GHz Intel Atom D510 (dual-core, 1MB L2 cache) |
1.60GHz Intel Atom 330 (dual-core, 1MB L2 cache) |
1.60GHz Intel Atom N270 (single-core, 512KB L2 cache) |
1.66GHz Intel Core 2 Duo T5500 (dual-core, 2MB L2 cache) |
| Memory | 256MB DDR3 | 512MB DDR2 | 1GB DDR2 | 1GB DDR2 | 1GB DDR2 | 2GB DDR2 | 1GB DDR2 | 4GB DDR2 |
| Disk drives | 1x 1TB Seagate ST31000528AS (included in price) |
2x 1TB Samsung HD103SJ (optional) |
2x 1TB Samsung HD103SJ (optional) |
4x 1TB Samsung HD103SJ (optional) |
4x 1TB Samsung HD103SJ (optional) |
4x 2TB Hitachi 7K2000 (optional) |
4x 1TB Samsung HD103SJ (optional) |
7x 1TB Samsung HD103SJ (optional) |
| RAID mode | N/A | RAID 1 | RAID 1 | RAID 5 | RAID 5 | RAID 5 | RAID 5 | RAID 5 |
| Network connectivity | Gigabit Ethernet | Gigabit Ethernet | Dual Gigabit Ethernet | Gigabit Ethernet | Dual Gigabit Ethernet | Dual Gigabit Ethernet | Dual Gigabit Ethernet | Dual Gigabit Ethernet / PCIe 10GbE |
| Firmware | 1.40 | 3.0-1285 | 3.3.4 Build 1019T | 2.3-1167 | 3.02.01 | S3115 R1.01 | 3.2.6 Build 0423 | 3.03.00.4 |
Benchmarks |
|---|
| Iometer v2008.06.18-RC2 Intel NAS Performance Toolkit v1.7.1 File copy test (8.83GB) Power draw |
Notes
Buffalo's 1TB LinkStation Pro is the first sub-£200, single-disk NAS to hit our test suite. It isn't directly comparable to any of the seven high-end alternatives in our line up, but we've decided to include all the numbers as a point of reference.
Each NAS box is tested using a single Gigabit Ethernet link with Jumbo frames disabled, and is connected to our client and network via a Netgear GS108 switch.
Iometer, a familiar benchmark in our test suite, is an I/O subsystem measurement tool. For the purpose of our NAS testing, we set a queue depth of 16 (outstanding I/Os) and run the following four benchmarks:
- 64KB transfer, 100% sequential, 100% read
- 64KB transfer, 100% sequential, 100% write
- 64KB transfer, 100% random, 67% read and 33% write
- 1MB transfer, 100% sequential, 100% read
Our second benchmark - the NAS Performance Toolkit, developed by Intel - is a file-system exerciser specifically designed to provide performance comparisons between NAS devices. Intel's utility focuses on user-level performance using real-world workload traces gathered from typical digital home applications such as HD video playback and record. Intel NASPT reproduces the file-system traffic observed in these traces onto a chosen storage solution and records performance in MB/s.
Taking a look at a simple usage scenario, our file copy test involves copying a mixed assortment of files totaling 8.83GB in size from our client to the NAS. The result is recorded in time taken to complete.
Last but not least, we measure NAS power draw during two states; under load and idle.
