Avago Technologies 3ware 9650SE-12ML (Channel) User Manual

Page 133

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Setting Unit Policies

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121

To enable or disable the Auto Verify policy for an existing unit
through 3DM

1

Choose

Management > Controller Settings

from the menu bar.

2

In the

Unit Policies

section of the

Controller Settings

page check the

Auto Verify

box for the appropriate unit. (To disable this policy, uncheck

the box.)

The page refreshes, and a message at the top confirms the change you
have made.

To enable or disable the Auto Verify policy for an existing unit
through 3BM

1

At the main 3BM screen, select the unit by highlighting it and pressing

Enter

.

An asterisk appears in the left-most column to indicate that it is selected.

2

Tab to the

Maintain Unit

button and press

Enter

.

3

On the pop-up menu, select

Configure

and press

Enter

.

4

In the

Configure Disk Array

screen,

Tab

to the field

Auto-Verify

.

5

After completing any other changes you wish to make, tab to

OK

and

press

Enter

.

Setting Overwrite ECC (Continue on Source Error

When Rebuilding)

The

Overwrite ECC (Continue on Source Error When Rebuilding)

policy

is available for units which are redundant. (For units which are not redundant,
this option is not shown on the screen.) When this policy is set, ECC (Error
Correcting Code) errors are ignored when they are encountered during a
rebuild. (ECC errors are typically defects that have been detected in the drive
since initialization.) When this policy is not set, if a unit is rebuilding, the
rebuild will abort when it encounters an ECC error and the unit will be set
back to Degraded.

Since enabling this policy could result in the loss of some source data in the
event of source errors, the default is to not enable this policy. Select this
option only if you want to ensure that a rebuild will complete successfully
without manual intervention. If the rebuild fails and

Overwrite ECC

(Continue on Source Error When Rebuilding)

is not selected, then you

have the option to start another rebuild manually. After completing a rebuild
with this policy enabled, it is recommended that you execute a file system
check when the rebuild completes. Under Windows, you can do this by right-
clicking on the Drive and choosing Properties; then on the Tools tab, click
Check Now. Under Linux and FreeBSD use

fsck /dev/sda1

.

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