Storage Presentation; Virtual Tape Storage - Fujitsu ETERNUS CS800 S6 User Manual

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 33
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"Network Attached Storage (NAS)" on page 34
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"OpenStorage (OST)" on page 35
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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-1,LTO-2, LTO-3, LTO-4, or LTO-5
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HP LTO-1,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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ETERNUS CS800
2.8 Storage Presentation
33