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4-42 Configuring Your Server
Patrol Read
The patrol read gives the read & verify test in the entire area of HDDs. It can be performed for all
HDDs assigned to virtual disks and hot-spare disks.
The Patrol Read allows subsequent defects of HDDs to be detected and repaired.
For HDDs configuring redundant virtual disks or those assigned to hot-spare disks, error sectors
detected during Patrol Read can be repaired.
IMPORTANT:
Patrol Read feature is factory-set to "Disabled".
To utilize Patrol Read, MSM must be installed.
If the system is restarted, Patrol Read is aborted. After restart of the
system, Patrol Read runs from the first step (top of HDD).
Consistency Check
The Consistency Check is used to check consistency among virtual drives. It is available for
redundant virtual drives in the RAID1 or RAID5 level.
Consistency Check can be performed through WebBIOS or MSM.
Consistency Check performs not only consistency check but also repair of error sectors.
Accordingly, it can be used as preventive maintenance.
IMPORTANT:
During Consistency Check, the processing rate is decreased due to
much load.
If the system is restarted, the Consistency Check is aborted.
However, the Consistency Check resumes after restart.
Note the following for the patrol read:
Note the following for Consistency Check:
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Troubleshooting
