Справочник Пользователя для Promise Technology 66 Pro

SuperTrak66™ User's Manual 

Chapter 3 

 

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NOTE: Since spanning uses the full capacity of each assigned drive, different 
capacity drives may be used without adversely affecting the performance of the 
array. No other RAID benefits are provided (see Chapter 6).  
 
Assigning Drives to a Spanning Array 

Under the [ Drive Assignments ] section, highlight a drive, and, with the [Space] bar, 
change the Assignable option to “Y” to add the drive to the Spanning array. Press 
<Ctrl-Y> to save the disk array information. The initial Define Array Menu screen 
will appear after you have pressed [Ctrl-Y]. You will see the array defined. You may 
press the [ESC] key to exit and return to the Main Menu of SuperBuild.  
 

Any extra drive that is not assigned to a fault tolerant disk array (RAID 1, 3, or 5) 
will be recognized as a Spare Drive. In Figure 10 on page  23, the fourth drive shown 
is unassigned and would be used as a hot spare for this RAID 3 array. Such a drive 
is automatically added to an array once a disk member of the array has been 
detected as “failed.” To restore fault tolerance as quickly as possible, 
SuperTrak66 begins to perform an automatic data rebuild on the “spare” drive in 
the background without the need to restart the system. At a later time, the failed 
drive can be physically removed and an extra drive added in its place to function as 
the “spare” drive. 

You may select which defined array will be used as the bootable array from the  
[ Define Array ] menu (Item [3] in the Main Menu). Highlight the desired array and 
press the [Space] bar key. The system will now recognize this as the first array 
and an * asterisk will appear next to the array number indicating it as bootable (see 
Figure 13 below).