DISK Subsystems

1974

Itel 7330s replace IBM 3330s

1979

IBM 3350s replace 7330s (625 MB/unit)

1983

IBM 3380s replace 3350s (2521 MB/unit)

1990

First 3390 purchased

1996

IBM 3390s replace 3380s

1997

Upgraded IBM 7135 RAID disk subsystem on NERSP to storage capacity of 405 GB

2001

SHARK DASD replaces 3380s

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