SuperTrak EX Series User Manual

4.Highlight the following PDM trigger settings and type a value into the corresponding field:

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.From the dropdown menu on the Background Activities tab, choose one of the following activities:

Media Patrol – See “Running Media Patrol” on page 134

Rebuild – See “Rebuilding a Disk Array” on page 162

PDM – See “Running PDM” on page 135

Transition – See “Transitioning a Disk Array” on page 164

Initialization – See “Initializing a Logical Drive” on page 169

Redundancy Check – See “Running Redundancy Check” on page 170

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 133 and “Running PDM” on page 135.

You can schedule Media Patrol to run automatically, see “Scheduling an Activity” on page 135.

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.

134

Page 148
Image 148
Promise Technology EX8658, EX8654, EX8650, EX4650 manual Running Background Activities, Running Media Patrol