NEC Express5800/R120a-1 Uživatelský manuál stáhnout pdf (Strana 58)

Ex.: If Physical Devices #1 - #7 can be used for Easy Configuration and two Logical Drives are created,

s #1 - #4 and three Physical Devices #5 - #7,

respectively.

Figure 16 Assigning P ysical Devices in Easy Configuration 2

Logical Drives #1 and #2 are created with four Physical Device

Physical Physical Physical Physical Physical Physical Physical

7 Device #1 Device #2 Device #3 Device #4 Device #5 Device #6 Device #

Logical

Drive #1

Logical

Drive #2

Drives.

Physical Devices in which S.M.A.R.T. errors are detected cannot be used to create Logical

Capacity cal Drive of Logi

The capacity of a Logical Drive to be created is defined by the RAID Level and the capacities of Physical

Devices use

The Easy e.

When a single Logical Drive is created by using Physical Devices of different capacities, the smallest

- #4 and #5 - #7 to create Logical Drives #1 and #2, respectively.

Figure 17 Capacities of Logical Drives in Easy Configuration

d for the Logical Drive.

figuration uses the entire areas of the Physical Devices to create a Logical Driv Con

capacity is applied among those of the Physical Devices.

Ex.: If Physical Devices #1 - #7 of different capacities can be used in Easy Configuration to create two

Logical Drives, use Physical Devices #1

The capacity of each Logical Drive is defined by the smallest capacity among those of the Physical Devices

for the Logical Device.

Logical

Driv

150GB

Logical

e #1

Drive #2

200GB

RAID 5

Physical

Device #1

50GB

Physical

Device #2

50GB

Physical

Device #3

Physical

Device #4

100GB

Physical

evice #5

100GB

Physical

Device #6

100GB

Physical

Device #7

150GB

Only 50GB is used in

ch Physical Device

and #4) because

50GB are not used in #3

(#3

the smallest capacity is

50GB (remaining

capacities 100GB and

and #4, respectively).

Only 100GB can be

in Physical

e #7 because

the smallest capacity

is 100GB in the

Devices.

(Remaining 50GB is

used

Devic

Physical

not used.)

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