Storage Presentation; Virtual Tape Storage - Fujitsu ETERNUS CS800 User Manual

2.8 Storage Presentation
A ETERNUS CS800 can only replicate data to an ETERNUS CS800 that supports the
same protocol as the ETERNUS CS800 (NAS or VTL). That is, an ETERNUS CS800
VTL system can only replicate data to a ETERNUS CS800 that supports VTL.
2.8

Storage Presentation

The ETERNUS CS800 presents its disk storage using multiple protocols:
"Virtual Tape Storage" on page 36
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"Network Attached Storage (NAS)" on page 37
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"OpenStorage (OST)" on page 39
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2.8.1

Virtual Tape Storage

A virtual tape storage or virtual tape library (VTL) presentation allows the storage space on
these hard drives to appear to the backup application as tape cartridges (DLT or LTO). Data
is stored on the hard drives through an interface that appears as a tape library, with virtual
cartridges, virtual drives, and a virtual changer mechanism. An ETERNUS CS800 with a
VTL or Multi-Protocol configuration can be configured to present multiple VTL interfaces of
different sizes and types at once. This allows backup applications to recognize and integrate
a ETERNUS CS800 system into a data center environment just like one or more physical
tape libraries. ETERNUS CS800 provides a number of tape drive and library emulations
including the tape drive emulations:
IBM LTO-2, LTO-3, LTO-4, or LTO-5
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HP LTO-2, LTO-3, LTO-4, or LTO-5
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and the library emulations:
Fujitsu CS-TL
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ADIC Scalar i2000, or ADIC Scalar i500
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36 ETERNUS CS800