182
Promise
Technology
Pegasus3 R4/R6/R8
Spare Drives
Spare drive technology includes:
• Definition (page 92)
•
Options (page 92)
•
Requirements (page 92)
•
Transition (page 93)
Definition
A spare drive is a physical drive that you designate to automatically replace the failed physical drive in a
disk array. See “Creating a Spare Drive Manually” on page 69.
The general recommendation is to:
•
Provide at least one spare drive
• Configure the spares as
global revertible
spare drives
Options
There are several options you can specify for a spare drive:
•
System Options
• Revertible
– Returns to its spare drive assignment after you replace the failed physical drive
in the disk array and run the Transition function.
• Media Patrol
– By default, Media Patrol runs on spare drives unless you disable it.
•
Spare Type
• Global
– Can be used by any disk array
• Dedicated
– Can be used only by the assigned disk array
•
Media Type
(type of physical drive)
•
Hard Disk Drive (HDD)
•
Solid State Drive (SSD)
Содержание Pegasus3 R4
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