Adaptec AEC-4412B Manuale Utente Scaricare il pdf (Pagina 8)

CQ-1001 / Page 8 of 14

US

6,425,035

B2

9

router

can

use

tables

to

map,

for

each

initiator,

what

storage

access

is

available

and

what

partition

is

being

addressed

by

a

particular

request.

In

this

manner,

the

storage

space

provided

by

SCSI

storage

devices

can

be

allocated

to

FC

initiators

to

provide

virtual

local

storage

as

well

as

to

create

any

other

desired

configuration

for

secured

access.

Although

the

present

invention

has

been

described

in

detail,

it

should

be

understood

that

various

changes,

substitutions,

and

alterations

can

be

made

hereto

without

departing

from

the

spirit

and

scope

of

the

invention

as

defined

by

the

appended

claims.

What

is

claimed

is:

1.

A

storage

router

for

providing

virtual

local

storage

on

remote

storage

devices

to

devices,

comprising:

a

buffer

providing

memory

work

space

for

the

storage

router;

a

first

controller

operable

to

connect

to

and

interface

with

a

first

transport

medium;

a

second

controller

operable

to

connect

to

and

interface

with

a

second

transport

medium;

and

a

supervisor

unit

coupled

to

the

first

controller,

the

second

controller

and

the

buffer,

the

supervisor

unit

operable

to

map

between

devices

connected

to

the

first

transport

medium

and

the

storage

devices,

to

implement

access

controls

for

storage

space

on

the

storage

devices

and

to

process

data

in

the

buffer

to

interface

between

the

first

controller

and

the

second

controller

to

allow

access

from

devices

connected

to

the

first

transport

medium

to

the

storage

devices

using

native

low

level,

block

pro-

tocols.

2.

The

storage

router

of

claim

1,

wherein

the

supervisor

unit

maintains

an

allocation

of

subsets

of

storage

space

to

associated

devices

connected

to

the

first

transport

medium,

wherein

each

subset

is

only

accessible

by

the

associated

device

connected

to

the

first

transport

medium.

3.

The

storage

router

of

claim

2,

wherein

the

devices

connected

to

the

first

transport

medium

comprise

worksta-

tions.

4.

The

storage

router

of

claim

2,

wherein

the

storage

devices

comprise

hard

disk

drives.

5.

The

storage

router

of

claim

1,

wherein

the

first

con-

troller

comprises:

a

first

protocol

unit

operable

to

connect

to

the

first

transport

medium;

a

first-in-first-out

queue

coupled

to

the

first

protocol

unit;

and

a

direct

memory

access

(DMA)

interface

coupled

to

the

first-in-first-out

queue

and

to

the

buffer.

6.

The

storage

router

of

claim

1,

wherein

the

second

controller

comprises:

a

second

protocol

unit

operable

to

connect

to

the

second

transport

medium;

an

internal

buffer

coupled

to

the

second

protocol

unit;

and

a

direct

memory

access

(DMA)

interface

coupled

to

the

internal

buffer

and

to

the

buffer

of

the

storage

router.

7.

A

storage

network,

comprising:

a

first

transport

medium;

a

second

transport

medium;

a

plurality

of

workstations

connected

to

the

first

transport

medium;

a

plurality

of

storage

devices

connected

to

the

second

transport

medium;

and

10

15

20

25

30

35

40

45

50

55

60

10

a

storage

router

interfacing

between

the

first

transport

medium

and

the

second

transport

medium,

the

storage

router

providing

virtual

local

storage

on

the

storage

devices

to

the

workstations

and

operable:

to

map

between

the

workstations

and

the

storage

devices;

to

implement

access

controls

for

storage

space

on

the

storage

devices;

and

to

allow

access

from

the

workstations

to

the

storage

devices

using

native

low

level,

block

protocol

in

accordance

with

the

mapping

and

access

controls.

8.

The

storage

network

of

claim

7,

wherein

the

access

controls

include

an

allocation

of

subsets

of

storage

space

to

associated

workstations,

wherein

each

subset

is

only

acces-

sible

by

the

associated

workstation.

9.

The

storage

network

of

claim

7,

wherein

the

storage

devices

comprise

hard

disk

drives.

10.

The

storage

network

of

claim

7,

wherein

the

storage

router

comprises:

a

buffer

providing

memory

work

space

for

the

storage

router;

a

first

controller

operable

to

connect

to

and

interface

with

the

first

transport

medium,

the

first

controller

further

operable

to

pull

outgoing

data

from

the

buffer

and

to

place

incoming

data

into

the

buffer;

a

second

controller

operable

to

connect

to

and

interface

with

the

second

transport

medium,

the

second

control-

ler

further

operable

to

pull

outgoing

data

from

the

buffer

and

to

place

incoming

data

into

the

buffer;

and

a

supervisor

unit

coupled

to

the

first

controller,

the

second

controller

and

the

buffer,

the

supervisor

unit

operable:

to

map

between

devices

connected

to

the

first

transport

medium

and

the

storage

devices,

to

implement

the

access

controls

for

storage

space

on

the

storage

devices

and

to

process

data

in

the

buffer

to

interface

between

the

first

controller

and

the

second

controller

to

allow

access

from

workstations

to

storage

devices.

11.

Amethod

for

providing

virtual

local

storage

on

remote

storage

devices

connected

to

one

transport

medium

to

devices

connected

to

another

transport

medium,

comprising:

interfacing

with

a

first

transport

medium;

interfacing

with

a

second

transport

medium;

mapping

between

devices

connected

to

the

first

transport

medium

and

the

storage

devices

and

that

implements

access

controls

for

storage

space

on

the

storage

devices;

and

allowing

access

from

devices

connected

to

the

first

transport

medium

to

the

storage

devices

using

native

low

level,

block

protocols.

12.

The

method

of

claim

11,

wherein

mapping

between

devices

connected

to

the

first

transport

medium

and

the

storage

devices

includes

allocating

subsets

of

storage

space

to

associated

devices

connected

to

the

first

transport

medium,

wherein

each

subset

is

only

accessible

by

the

associated

device

connected

to

the

first

transport

medium.

13.

The

method

of

claim

12,

wherein

the

devices

con-

nected

to

the

first

transport

medium

comprise

workstations.

14.

The

method

of

claim

12,

wherein

the

storage

devices

comprise

hard

disk

drives.

CQ-1001

/Page

8

of

14

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Commenti su questo manuale

Nessun commento