HP Apollo 9000 400t Uživatelský manuál stáhnout pdf (Strana 19)

Workstations

New high-performance,

high-capacity mass

storage for HP Apollo

9000

Series

400

New disk drives for HP Apollo

9000 Series 400 systems

1.3-Gbyte SCSI disk for HP Apollo

9000 Model 425s and 210- and

420-Mbyte SCSI disks for HP

Apollo 9000 Model

425el425t

along with enhancements

HP-UX

8.0 and DomainIOS SR 10.3

PSK3Q-9 1, provide significant

improvements in capacity

and

I/0 performance.

The 420-Mbyte

3% SCSI disk

available on the HP Apollo 9000

Models 425e and 425t offers dou-

ble the capacity at approximately

12.5% lower price-per-megabyte

cost than the 210-Mbyte SCSI

disk.

A higher performance 210-Mbyte,

3%-inch SCSI disk drive is also

available on all HP Apollo 9000

Model 425e systems and on newly

announced GRX and CRX models

of the Model

425t.

Improvements in sequential and

random performance

Both 210- and 420-Mbyte drives

offer substantial improvements in

performance. The 210-Mbyte drive

offers both improved sequential

(approximately 25-300%) and ran-

dom performance (approximately

17%) over HP's previous genera-

tion 200-Mbyte 3%-inch SCSI disk.

The 420-Mbyte drive offers the

highest 3%-inch SCSI perfor-

mance (approximately 30% faster

sequential performance than the

new 210-Mbyte disk).

The new 1.3-Gbyte 5%-inch SCSI

disk drive, available internally in

the HP Apollo 9000 Model

425s,

offers a reduction in price per

megabyte of approximatley 19%

compared to the 660-Mbyte

5%-

inch disk. It offers the best disk

capacity value available from HP,

and is currently the highest ca-

pacity 5%-inch SCSI disk drive

available. There is a significant

improvement in sequential perfor-

mance (between approximately 30

and 65%) compared with HP's pre-

vious 5%-inch SCSI disks.

Enhancements

HP-UX 8.0 in-

clude extending the file system

size to 2.0 Gbytes, eliminating the

seven-device SCSI limit, and offer-

ing tools to tune the file system at

install time. The enhancements

allow a maximum disk capacity

on an HP Apollo 9000 Model 425s

of 27.3 Gbytes (almost a six-fold

increase in supported maximum

capacity).

Installation and support

The new internal disks are avail-

able as both factory-ordered op-

tions and user-installable field

upgrades. HP-UX 8.0 or

Domaid

OS 10.3 PSK3Q-91 is required for

support.

HP SharedX for real-

time

corr~munications

in distributed computing

environments

HP SharedX for HP 9000 Series

300 and HP Apollo 9000 Series 400

with HP-UX 7.X

(P/N B2305LIA) is

an extension to the X Window

System that allows the sharing of

applications. Members of geo-

graphically dispersed groups can

now simultaneously view and

modify information within a

window.

HP SharedX is the first product to

allow two or more users in dis-

tributed computing environments

communicate with each other

in real time. Combined with a

telephone, HP SharedX provides a

level of computer-aided collabora-

tion previously unavailable:

Sharing is quick and easy. Pick a

destination, push a button, and

pick a window

share.

On-demand sharing is possible.

Sharing can occur whenever it is

needed.

Almost any existing X protocol-

based application that runs in the

X Window System today can be

shared, without modification.

Multiple windows can be shared

among several machines at the

same time. Teams all have the

same view of and can input to the

same application. The sender con-

trols who may input to the shared

application. Pointing devices,

called telepointers, can be placed

in any shared window to focus

participants' attention on a cer-

tain part of the window.

Only the sender's display needs to

have the Shared X extension. Any

display running standard X can

receive shared windows without

any modification. HP officially

supports only HP-to-HP sharing.

HP SharedX does not change

standard X security. No perma-

nent access is required to share

a window with another machine.

The receiving display grants per-

mission to the sender to send the

window by performing the

xhost

command.

Computer Update, June 1991

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