VTrak M-Class Product Manual
4.Click on the Physical Drives 
icon.
5.Click on a Physical Drive 
icon.
6.Click on the Force Offline/Online tab in Management View.
7.Click the Submit button.
8.In the confirmation box, type the word confirm in the field provided.
9.Click the OK button.
Physical Drive Media Patrol
Media Patrol is a routine maintenance procedure that checks the magnetic media on each disk drive. Media Patrol checks all physical drives assigned to disk arrays. Media Patrol does not check unconfigured drives.
Media Patrol will also check spare drives, if those drives have Media Patrol enabled. Media Patrol for spare drives is enabled by default. You can disable it in VTrak's Command Line Interface (CLI).
Unlike Synchronization and Redundancy Check, Media Patrol is concerned with the condition of the media itself, not the data recorded on the media. If Media Patrol encounters a critical error, it triggers PDM if PDM is enabled.
To run Media Patrol, do the following:
1.Click the Subsystem 
icon in Tree View.
2.Click on the Background Activities tab in Management View.
3.From the Background Activities dropdown menu, select Start Media Patrol.
4.Click the Start button.
To set Media Patrol priority, see “Change Background Settings” on page 71.
Disk Arrays
A disk array is a collection of physical drives in a RAID. Logical drives are made from disk arrays. The Disk
•Device ID – This is the unique ID number assigned to an individual disk array
•Alias – A
•Status – This refers to functional status of this disk array. OK is normal
•Configurable Capacity – This is the data storage capacity available for new and existing logical drives
•Free Capacity – This is the data storage capacity available for new logical drives
To see more information about a specific disk array, click on its Device ID link.
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