Chapter 4: Management with WebPAM PROe
53
• Reassigned Block Threshold – 1 to 512 blocks
• Error Block Threshold – 1 to 1024 blocks
5. Check to enable or uncheck to disable the following functions:
• Media Patrol – Checks the magnetic media on physical drives
• Auto Rebuild – If there is a spare drive of adequate capacity, a critical
disk array will begin to rebuild automatically. If not spare drive is
available, the disk array will begin to rebuild as soon as you replace the
failed physical drive with an unconfigured physical drive of equal or
greater size.
6. Click the Submit button to save your settings.
Running Background Activities
To run a background activity from the Background Activities tab:
1. In Tree View, click the Subsystem icon.
2. In Management View, click the Background Activities tab and choose one
of the following from the dropdown menu.
• Media Patrol – See “Running Media Patrol” on page 53
• Rebuild – See “Rebuilding a Disk Array” on page 107
• PDM – See “Running PDM” on page 54
• Transition – See “Transitioning a Disk Array” on page 109
• Initialization – See “Initializing a Logical Drive” on page 113
• Redundancy Check – See “Running Redundancy Check” on page 114
3. In the next screen, make the choices as requested.
4. Click the Start button.
Running Media Patrol
Media Patrol checks the magnetic media on physical drives. When it finds the
specified number of bad blocks, it will trigger PDM. See “Making Background
Activity Settings” on page 52 and “Running PDM” on page 54.
You can schedule Media Patrol to run automatically, see “Scheduling an Activity”
on page 54.
To run Media Patrol:
1. In Tree View, click the Subsystem icon.
2. From the dropdown menu on the Background Activities tab, choose Start
Media Patrol.
3. In the next screen, click the Start button.
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