Data Cartridge Capacity Scaling; Supported Servers And Operating Systems; Scsi Interface; Physical Characteristics - IBM TotalStorage Ultrium T800 Operator's Manual

Data Cartridge Capacity Scaling

Supported Servers and Operating Systems

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SCSI Interface

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Physical Characteristics

Speed

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IBM TotalStorage Ultrium Tape Drive
The SET CAPACITY SCSI command enables a customer to capacity scale a data
cartridge to enable faster random access. As an example, a customer could capacity
scale a data cartridge to 20% of its normal length which improves the average
access time by almost a factor of 5; however, it also reduces the native capacity of
the tape to 80 GB.
The drive attaches to the servers and operating systems shown in Table 1. Any
attachment can include (but is not limited to) these servers and operating systems.
To determine the latest supported attachments, visit the web at
http://www.ibm.com/storage/lto. For specific instructions about attaching the drive,
see "Installing the Drive" on page 13.
Table 1. Supported servers and operating systems for SCSI and Fibre Channel attachment
Supported Servers
or ERserver iSeries
®
IBM AS/400
, RS/6000 SP, or Eserver
®
IBM RS/6000
®
pSeries
IBM Eserver zSeries
®
800 or 900
Hewlett-Packard
Sun Microsystems
™
32-bit, Intel -compatible servers
64-bit, Intel Itanium servers
To communicate with a server, the SCSI drive uses the Ultra160 LVD SCSI
interface.
The drive contains a high-density, 68-pin, D-shell receptacle connector (HD68) for
attachment to the server. The HD68 connector includes the connectors for the SCSI
signal, the SCSI ID, and the drive's power. The drive supports LVD SCSI cables
with HD68 connectors.
For a list of available cables, see "Parts List" on page 109.
The Ultra160 LVD SCSI interface is compatible with older SCSI technology and is
capable of data transmission at 160 MB/s. Ultra160 SCSI uses the three
management features of the Ultra3 SCSI standard that specifically affect data
transfer rate:
v Double transition clocking - a data-transfer technique that enables data rates to
double without increasing clock speed
v Domain validation - a procedure that detects and adjusts SCSI configuration
issues that might prevent interoperation between SCSI devices
v Cyclic redundancy check (CRC) - an error-checking technique
Supported Operating Systems
™ ®
OS/400
®
AIX
™
Linux
HP-UX
Solaris
Microsoft Windows 2000 or Windows
Red Hat Linux
Red Hat Linux
®
2003