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Glossary
Header
At the start of each physical tape written by CentricStor there is an 80-byte header
followed by a Tap ema rk.
ICP
In the CentricStor system the ICP is the interface to the host systems connected. These
are connected using ESCON, FICON or FCP.
The ICP’s principal task is to emulate the physical drives for the host systems
connected.
The predefined host names for this ISP type are ICP0, ICP1, etc.
➟ section “ICP (Integrated Channel Processor)” on page 28
ICP_IDP
An ICP_IDP combines the attributes of an ICP and those of an IDP: this computer has
interfaces to the hosts and to the tape drives.
The ICP_IDP is the only ISP type used in the CentricStor models VTA 500 and VTA
1000 and consequently has the attributes of a VLP.
IUP (Integrated Universal Processor) is a synonym for ICP_IDP.
The predefined host names for this ISP type are IUP0 and IUP1.
➟ section “ICP_IDP or IUP (Integrated Universal Processor)” on page 29
IDP
The IDP is the interface to the tape drives connected. Either a SCSI or FC connection
is used.
The IDP is responsible for communication with the real tape drives.
The predefined host names for this ISP type are IDP0, IDP1, etc.
➟ section “IDP (Integrated Device Processor)” on page 29
Integrated Channel Processor ➟ ICP
Integrated Device Processor ➟ IDP
Integrated Standard Processor ➟ ISP
Integrated Universal Processor ➟ ICP_IDP
ISP
Depending on the peripherals and the software configuration, CentricStor has different
types of ISP:
ICP ISP with host connection using ESCON, FICON and/or FCP.
IDP ISP without host adapter but with tape drives.
ICP_IDP This ISP type combines the attributes of ICP, IDP and VLP in one ISP. An
ICP_IDP has both a host adapter and a SCSI or FC controller to operate
real tape drives and robots.