User manual

15
Promise Technologies Pegasus J4User Manual
configUre the hard diSkS
Once the device drive is installed, the four hard disks installed in each unit appear as four separate individual
drives to the operating system. e disks are ready to be formatted and used as four separate disks or used in
a RAID set. Follow the instructions here if you are setting up the J4 for the rst time, if you want to change
the current conguration, or if you are installing new or dierent hard drives (see “Changing a Hard Drive”
onpage23).
Hard disk conguration on the J4 on a Macintosh is summed up in two general steps:
1. Opening the Mac Disk Utility.
2. Using the Disk Utility to create a RAID set or concatenated disks (JBOD).
Use the Disk Utility to create one of the following:
• A JBOD “Createaconcatenateddiskset”onpage16
• A striped RAID (RAID 0) set “CreateastripedRAIDset”onpage16
• A mirrored RAID (RAID 1) set “CreateamirroredRAIDset”onpage17
It is also possible to create a combined or hybrid RAID set that combines two of the available RAID
set options. See “CombineRAID sets”onpage17foran example ofhowtosetup aRAID10 set that
combines the benets of a striped RAID and a mirrored RAID set.
MAc os Disk utility
e Disk Utility on a Mac OS computer is located in the Utility folder. is is normally located in the
Applications folder, unless it has been moved. e Disk Utility is used to format hard drives, to mount or
unmount drives, to congure RAID sets (discussed below) to rebuild a RAID set, to delete a RAID set, or
to troubleshoot various problems that might arise with hard drives that are installed on the computer or
attached to it.
Mac OS Disk Utility path
✓