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GDTRP400.DSK for NetWare 4.x

ASPITRAN.DSK ASPI manager

CTRLTRAN.DSK Module for GDTMON

(Note: More information about the GDTMON diagnosis tool may be found in a separate

chapter in this manual.)

The official release for ICP HAM-drivers is scheduled for Q4/98. There is already a beta-

package available on our Website.

if you wish to install NetWare 4.x from a CD-ROM, you first have to set up the CD-ROM

drive under MS-DOS, following the instructions given in chapter D, section D.6. Then install

NetWare following the instructions in the NetWare documentation. During the installation,

the NetWare installation program asks you which hard disk driver you want to load, show-

ing a list of available drivers. As the GDT driver is not part of this list yet, you have to boot

it from the floppy disk: insert the GDT Novell NetWare disk into the floppy drive. Now, select

the drivers GDTRP400, ASPITRAN and CTRLTRAN. Complete the installation according to

the instructions given by the NetWare installation program.

Naturally you can also load the GDT driver directly from the system console, just as with

NetWare 3.x:

:LOAD GDTRP400 <ENTER>

(ASPITRAN.DSK and CTRLTRAN.DSK will be loaded automatically ). If more ICP Controllers

are installed in the fileserver (i.e., for controller duplexing), the above mentioned driver has

to be called upon several times. But as it is re-entrant, it is only loaded once. A single ICP

Controller can be chosen by selecting its PCI slot number.

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High performance RAID controllers are designed for multi-I/O operations and are capable

of processing several I/Os simultaneously. Especially cache controllers with powerful on-

board RISC CPUs can handle several hundred I/Os per second. NetWare offers the option of

adjusting the number of write I/Os which are loaded on the mass storage subsystem. In or-

der to gain optimum performance and speed from modern high performance disk control-

lers, the amount of the so-called 'maximum concurrent disk cache writes' has been

increased with every further development of NetWare. Looking back to NetWare 3.11, only

100 'concurrent disk cache writes' were possible. With NetWare 4.10, this can be as much as

1000.

The number of concurrent disk cache writes delivering the best performance is highly de-

pendent on the performance of the installed disk controller, the amount of cache RAM on

the controller and the hard disks. The ICP Controllers can easily cope with up to 500 simul-

taneous requests. The following command line enables the adjustment of a new number

under NetWare (default value = 50):

set maximum concurrent disk cache writes = xxxx

where xxxx represents the required number of concurrent disk cache writes.

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Adaptec GDTSETUP Manual de usuario Pagina 145