Tru Unix 64

[rbird97]

Does anyone know if this OS is compatible with 3PAR?

[JohnMH]

Not supported Tru64 went end of support 2012, as such it's impossible for any storage vendor to provide a proper support SLA since no additional fixes would be forthcoming for the Tru64 OS.

AFAIK older generation XP and EVA were the last to be qualified for support.