4
Description
Figure 1
Client Connection
The Scalar tape libraries are connected to the Scalar DLC software host via the SCSI bus or the Fibre
Channel cable. See
Figure 2
.
Figure 2
Physical Libraries connected to the Scalar DLC
For each tape library found during
Scan SCSI Bus
operation, the Scalar DLC software creates an object
called
physical library
. This object represents all aspects of the real tape device.
Logical Library Concepts
In order for clients to have a flexible way to share common resources (
physical library
), the Scalar DLC uses
virtual objects called
logical libraries
to represent the real device for the client. The Management GUI is used
to create and configure these logical libraries. The connection between the logical library and the device is
implemented by means of the partitioning features that are unique to the Scalar DLC software. The
partitioning operation creates a number of element ranges called
partitions
that are used by the physical
library. These ranges are then assigned to the logical libraries (see
Figure 3
on page 5) so that the client
who uses a certain logical library can access the correct part of the physical library. This feature is very
useful when clients use a single physical library while the client has access to only a certain resource. The
logical library represents these resources, and the assigned partitions provide a connection between the
logical library and its physical equivalent.
Summary of Contents for Scalar 1000
Page 14: ...xiv Figures...
Page 86: ...70 Management GUI...
Page 188: ...172 Configuration Tab...
Page 198: ...182 Events Tab...
Page 254: ...238 Tools and Utilities...
Page 282: ...266 DAS Guide...
Page 292: ...276 SCSI Guide...
Page 300: ...284 ROBAR Guide...
Page 304: ...288 Index...