Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Guía de instalación descargar pdf (Pagina 26)

Adaptec AHA-2740, 2742, 2740A, 2742A,

2740T, 2742T, 2740AT, 2742AT, 2740W,

2742W, 2840VL, 2842VL HBAs

Solaris Device Driver:

esa

Device Type:

SCSI

Adapters:

Adaptec AHA-2740, AHA-2742, AHA-2740A,

AHA-2742A, AHA-2740T, AHA-2742T,

AHA-2740AT, AHA-2742AT, AHA-2740W,

AHA-2742W, AHA-2840VL, AHA-2842VL

Chip:

Adaptec AIC-7770

Bus Types:

EISA, VLB

Preconﬁguration Information

Don’t use a version of the AHA-274x series conﬁguration utilities before version

2.1.

Don’t use a version of the AMI ECU before version 2.01 when conﬁguring the

AHA-274x on a motherboard with an AMI BIOS.

Known Problems and Limitations

The AHA-274x is not compatible with the Wyse MP system.

Motherboards that support level-triggered interrupts, such as an EISA

motherboard, will support multiple AHA-274x adapters sharing the same IRQ

(although there may be minor performance degradation).

The AHA-2840VL adapter cannot share IRQ vectors because it supports only

edge-triggered interrupts.

When the AHA-274x host bus adapter runs under heavy load, the tape device

loses arbitration contests to faster devices with higher priorities and produces

“Media Error” messages. To avoid this problem, change the SCSI ID of the adapter

so that it is lower than the tape device setting.

Device Reference Manual for Solaris 2.6 (Intel Platform Edition) ♦ April 1998

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Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Guía de instalación Pagina 26