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Test System And Results

Back Up Your Business Data With Tandberg's 420LTO and 220LTO Streamers
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System Hardware
Processor(s) 2x Intel Xeon Processor (Nocona core)
3.6 GHz, FSB800, 1 MB L2 Cache
Platform Asus NCL-DS (Socket 604)
Intel E7520 Chipset, BIOS 1005
RAM Corsair CM72DD512AR-400 (DDR2-400 ECC, reg.)
2x 512 MB, CL3-3-3-10 Timings
System Hard Drive Western Digital Caviar WD1200JB
120 GB, 7,200 rpm, 8 MB Cache, UltraATA/100
Mass Storage Controller(s) Intel 82801EB UltraATA/100 Controller (ICH5)

- Promise SATA 300TX4
Driver 1.0.0.33

- Adaptec AIC-7902B Ultra320
Driver 3.0

- Adaptec 48300 8 port PCI-X SAS Controller
Driver 1.1.5472

- Adaptec 4800 8 port PCI-X SAS Controller
Driver 5.1.0.8360
Firmware 5.1.0.8375

- LSI Logic SAS3442X 8 port PCI-X SAS Controller
Driver 1.21.05
BIOS 6.01
Storage Systems Adaptec Storage Enclosure 335SAS
Internal 4-bay hot-swap drive chassis

Adaptec SANbloc S50 JBOD
2U, 12-drive SAS/SATA JBOD

Networking Broadcom BCM5721 On-Board Gigabit Ethernet NIC
Graphics Card On-Board Graphics
ATI RageXL, 8 MB
Benchmarks
Performance-Messungen c’t h2benchw 3.6
I/O Performance IOMeter 2003.05.10
Fileserver-Benchmark
Webserver-Benchmark
Database-Benchmark
Workstation-Benchmark
System Software & Drivers
OS Microsoft Windows Server 2003 Enterprise Edition, Service Pack 1
Platform Driver Intel Chipset Installation Utility 7.0.0.1025
Graphics Driver Default Windows Graphics Driver
Test Results

Our storage benchmark involves moving a lot of big files, but also over 10,000 files smaller than 50 kB. This mix should give us a good idea of the drives’ real-world performance.

No big surprises here - performance is pretty close to the advertised native specifications.

The Tandberg 420LTO advertised native transfer rates of 24 MB/s, and it managed to hit 20.8 MB/s in our tests. While that’s very close to the claimed figures, we wonder why it’s so far from the LTO-2 standard, which should be 40 MB/s. Once again, we can only assume that the reduced performance is part of the trade-off that Tandberg made to get the drive small and power-miserly.

The external 220LTO is based on the older LTO-1 standard, but managed 14.6 MB/s, which is very close to its advertised 16 MB/s specification, and acceptably close to the LTO-1 standard’s 20 MB/s specification. Of course, as an LTO-1 drive it also only has half the capacity of the 420LTO.

slide show : Tandberg 420LTO and 220LTO Streamers

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