High-end storage from EMC

EMC unveils 2 new high-end storage arrays that give users not only
better performance but higher capacity for business critical and
transaction-intensive applications.

The Symmetrix DMX3500 and DMX4500 have more than 3 times the
storage capacity of present EMC arrays and more cache memory and
throughput for high-performance. They are not meant to replace EMC's
Symmetrix DMX800, 1000, 2000 and 3000, but to complement them
by offering systems that perform better and faster.

In addition, the new Symmetrix's will have mirrored cache, a first for
EMC storage arrays. Mirroring of cache memory provides for system
redundancy and increased availability. Increasing the size of the cache
memory is important because the system is able to store more
information quickly at hand for use by business-critical applications such
as databases. Arrays from Hitachi Data Systems and IBM such as the
TagmaStore and TotalStorage DS8000 already have mirrored cache.

The new arrays are also modular - meaning they can scale incrementally
by adding more disk drives, memory or I/O. EMC first introduced
modular arrays with the DMX Series, announced in February of 2004.

The DMX3500 has an upper capacity of 4323 T-bytes; the DMX4500
supports 576 T-bytes of data. EMC's present DMX3000 supports 172
T-bytes [1,000 terabytes or 1 petabytes is enough space to store 250
million digital music files or 2 trillion telephone transaction records].