HP-UX 11i Version 2 Release Notes (October 2003)

Workstation- and Server-Specific Information

Mass Storage Drivers

Chapter 3

Obsolescence

Not applicable.

SCSI Drivers

The Small Computer System Interface (SCSI) product is delivered as part of each

HP-UX 11i v2 operating environment. The SCSI product activates the mass storage

stack in HP-UX. It consists of services and a disk class driver that are common layers for

all the storage stacks, including Fibre Channel and interface drivers for parallel SCSI

cards.

Summary of Change

The SCSI product is changed in HP-UX 11i v2 as follows:

• The SCSI support is limited to PCI cards only.

• The new cards supported are: A5149A and A5838A (SCSI/LAN combination card).

• The user-level utility, scsictl, includes the new -o option for SCSI cards that are

added on-line with the use of OLAR.

• The SCSI High Voltage Differential (HVD) cards, A4800A, A5159A and A5159B,

are not supported in HP-UX 11i v2.

• The use of Online Addition and Replacement (OLAR) for the A6828A and A6829A

cards is supported.

• The capability to move individual interrupts, allowing the balancing of the systems

interrupt load, is provided with interrupt migration.

Impact

The SCSI HVD cards, A4800A, A5159A and A5159B, are not supported in HP-UX 11i

v2.

In earlier versions of HP-UX, the parameters of the card were modified through a

configuration utility before booting HP-UX. In HP-UX 11i v2, as with previous releases,

the parameters for cards on the system can be changed using scsictl -o if necessary

after an on-line addition using the configuration tool from the EFI shell.

The PCI Ultra160 SCSI HBA cards, A6828A and A6829A, can be used in multi-initiator

setups. A setup with more than one SCSI initiator on the same SCSI bus is considered a

multi-initiator setup.

The A5149A, A5150A, and A5838A cards have the following limitations:

Boot Support It is not possible to boot from these cards on HP

Integrity servers. For a list of these servers supported

by HP-UX 11i v2, see Supported Servers and

Workstations (see page 40).

OLAR Support Is not available at the time of this release though it

may be available at a later date.

SCSI Parameters Only default parameter settings are supported; no

parameter changes are supported.