- Support for RAID 6 on DS4700 and DS4200 Express models.
- Support for greater than 2TB volumes on some operating systems.
- Up to 64 enhanced remote mirror pairs on the DS4700 and DS4200. Up to 128 on the DS4800.
- Up to 128 storage partitions on the DS4700 Express and DS4200 Express. Up to 512 partitions on the DS4800.
- Additionally, IBM has announced the lavishly-named System Storage TS2240 Tape Drive Express Model LTO 4 Half-High. For simplicity's sake, we'll just call it the System Storage TS2240 Tape Drive Express Model LTO 4 Half-High.
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