Tandberg SLR-140
The Tandberg is the baby of the group in terms of its basic specifications and its size; the Tandberg fits a standard 5.25in half-height drive bay. The native capacity of each cartridge is just 70GB, the lowest of the group, but the media is claimed to handle 140GB with 2:1 data compression, a capacity that should be close to achievable in most scenarios. The cartridge is the sturdiest we have come across with the base of the cartridge's chassis consisting of a -slab" of two-millimetre thick aluminium; it also features a switchable write lock and barcode ID.
Claimed data transfer rates are also quite a long way behind the other vendors as well with a 12MBps transfer rate at 2:1 compression compared to the Quantum, for example, which is claimed to be six times faster.
Connectivity to your server is via a SCSI LDV 160 interface.
Take a quick look at the Tandberg vendor specifications and then compare them to the other units tested and it becomes obvious that the Tandberg should be significantly slower backing up data. Our tests confirm this with the Tandberg posting backup times around five times slower than the fastest drive in the compressed file test for example and, the transfer rates obtained were in close agreement with the vendors claims as the Hallmark server was able to keep pace with the drive's data demands. The transfer rates of the Tandberg were much closer to the other units tested when backing up uncompressed files, but this was a function of the Hallmark server being the bottleneck for the faster units.
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