Adaptec ULTRA160 Guía de usuario descargar pdf (Pagina 55)

4-15

Novell NetWare Installation

Enter the following line at the prompt and then note the

number and name of the CD:

:cddevicelist

Enter the number or volume name of the CD at the command

line:

:cd mount

[x] [name]

Edit the

startup.ncf

file to include the load commands in Step 1

and 2 above, if auto-mounting devices.

Edit the driver load command in the

startup.ncf

file to include

the slot number (for example, load c:\server.312\adpt160m

slot=2).

Optimizing Performance

The Adaptec Ultra160 Family SCSI Bus Master firmware increases

the SCSI performance of the Adaptec Ultra160 Family host adapters

under multitasking environments. The firmware uses a paging

mechanism to handle up to 255 simultaneous SCSI commands. The

Sequencer can simultaneously manage up to 128 tagged, or 1

nontagged, SCSI commands for each SCSI device, up to a limit of

255 SCSI commands. The firmware can queue as many commands

as the operating system is able to send to the host adapter. To set this

feature, enter the following command:

max_tags=

In general, a low number of max_tags gives better sequential

performance, and a high number a better random performance.

Note:

A large number of max_tags can also cause starvation

problems leading to deactivation with some drives.

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Adaptec ULTRA160 Guía de usuario Pagina 55