NEC Express5800/R120a-1 Manual de usuario Pagina 70

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Maintenance of RAID System
This chapter describes the maintenance of a RAID System using the Universal RAID Utility.
Providing Patrol Read for Physical Devices
The Patrol R r a read
error occurs or not repea cal Device
media errors early. Be sure to execute Patrol Read for a RAID Controller if it supports the Patrol Read.
The interval time of Patr f the RAID Controller
about the interval tim
The Universal AID function
of changing the y.
Sett
ead function reads data saved in all Physical Devices in a RAID System entirely to check whethe
tedly in the background. The Patrol Read is effective to find failures including Physi
ol Read decides by the kind of RAID Controller. See the document o
e of Patrol Read. The Universal RAID Utility can not change it.
R Utility provides the function of indicating whether Patrol Read is executed or not and the
Patrol Read Priorit
ing Whether Patrol Read Is Executed or Not
Whether Pa ollers. The procedure of setting whether
Patrol R
trol Read is executed or not should be set in RAID Contr
ead is executed or not is described below.
Advanced Mode.
Changing the setting whether Patrol Read is executed or not is available only in the
RAID Viewer
Change the property of RAID Controller.
tep 1
Start the RAID Viewer. Click a RAID Controller on the Tree View. Then click [Properties] on the pull-down
Click the [Options] tab in the [RAID
ontroller Properties] dialog box. Change the value
f [Patrol Read] to [Enable] or [Disable]. Click [OK] or
pply].
S
menu of menu item [File].
Step 2
C
o
[A
70
RAID Controllers of some types may not support Patrol Read. If the Patrol Read is not
supported, items [Patrol Read] and [Patrol Read Priority] on the [Options] tab do not
appear.
raidcmd
Use "optctrl" command.
optctrl" command with -pr
umber of the RAID Controller for which whether Patrol Read is executed or not is set
nable/Disable Patrol Read.
Step 2 Check the execution result by using "property" command.
Step 1
Execute "
1
> raidcmd optctrl -c=1 -pr=enable
>
option and the following parameters.
N
E
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