Alpha Microsystems AM-647 Manual de Instruções descarregar pdf (Página 6)

Page 2 AM-64x DAT High Capacity Tape Drives

PDI-00649-00, A01

AM-647 (Archive) DAT Drive Characteristics

•

Two models: a 3.5” half-height drive, and a 5.25” half-height drive.

•

Both drives have the same operational characteristics.

•

Has a data capacity of approximately 2 gigabytes using 90 meter tapes

•

Can be used on a SASI or SCSI-2 bus, including Wide SCSI-2 with an appropriate adapter

•

CANNOT read/write compressed data tapes

AM-648 (Exabyte) DAT Drive Characteristics

•

Has a data capacity of approximately 2 gigabytes in standard DDS (non-compressed) mode, and

approximately 4 gigabytes in DDS-DC compressed mode with a 90 meter tape

•

Can be used on a SCSI-2 bus only, including Wide SCSI-2 with an appropriate adapter

•

Can be forced into compressed or non-compressed mode using the AMOS TMODE command

AM-649 (HP) DAT Drive Characteristics

•

There are two models of the AM-649 DAT drive:

•

The AM-649-00 4 gigabyte drive (HP model C1536A) has a data capacity of

approximately 2 gigabytes in DDS (non-compressed) mode, and approximately 4

gigabytes in DDS-DC compressed mode with a 90 meter tape.

•

The AM-649-01 8-gigabyte drive (HP model C1533A or C1599A) has the same data

capacities as the AM-649-00 using DDS/DDS-1 tape, with additional DDS-2 capabilities

yielding approximately 4 gigabytes of storage in native DDS-2 mode and 8-gigabytes in

DDS-2-DC compressed mode, when used with 120 meter DDS-2 tapes. In DDS-2 mode,

file access and data transfer rates are significantly faster than DDS/DDS-1 modes.

•

Can be used on a SCSI-2 bus only, including Wide SCSI-2 with an appropriate adapter

•

Can be forced into compressed or non-compressed mode using the AMOS TMODE command

See the "DAT Drive Compatibility" section of this manual and the TMODE reference sheet in

the Alpha Micro

System Commands Reference Manual

for more details on switching between

compressed and non-compressed data modes.

Drive Mounting Kits

In addition to the DAT tape drive, some installations require a drive mounting kit. Each mounting kit

includes the hardware to install a DAT drive in a particular type of computer. The following chart shows

the mounting kits needed for different Alpha Micro computers:

1 2 3 4 5 6 7 8 9 10 11 ... 40 41

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