Apple Xserve RAID User's guide User Manual download pdf (Page 18)

Creating a Separate High Performance Data Volume

As in the previous two examples, we’ll assume that you’ve purchased a computer with

a RAID card and four 500 GB disk drives. In this example, you want to take advantage of

RAID to create a fast data volume (for video editing, perhaps) and aren’t worried about

data protection. You’ll leave the current startup disk as is, and use a RAID 0 scheme to

create a separate volume on the remaining disks. RAID 0, which stripes data across the

drives in the RAID set, usually offers the highest performance. However, neither the

startup disk nor the data volume benefit from any data protection.

To set up this example:

First, because we’re leaving the original startup disk untouched, there’s no need to

restart the computer from a different disc; just open RAID Utility and use the Create

RAID Set command to create a RAID 0 set using the three remaining disks. When the

RAID set appears in the list on the left side of the RAID Utility window, select it and use

the Create Volume command to create the volume. The result is a fast 1,500 GB data

volume that is independent of the computer’s startup disk.

Creating a New Startup Volume and Several Data Volumes

In this example, you’ll recreate a startup volume, add several data volumes, and save

some space for a future volume, all on a protected RAID set that has a spare drive

available. As in the previous two examples, we’ll assume that you’ve purchased a

computer with a RAID card and four 500 GB disk drives.

To set up this example:

Because you’re going to recreate the current startup disk, you need to restart the

computer using the installation disc that comes with your computer and open RAID

Utility from the Utilities menu. Next, for the protection of the new startup disk and the

data volumes, you create a single RAID 5 set. To do so, choose the Create RAID Set

command, then choose RAID 5, select three of the four available disks, select the “Use

unassigned drives as spares” option, and click Create. Then, select the RAID set and use

the Create Volume command to create a 20 GB startup volume by changing the default

size in the volume creation dialog. Repeat the volume creation process to add other

data volumes with sizes that suit your needs. Finally, install Mac OS X or Mac OS X

Server on the new startup volume using the installation disc that comes with your

computer.

Apple, the Apple logo, Mac, Mac OS, and Xserve are trademarks

of Apple Inc., registered in the U.S. and other countries.

019-0972-A/07-2007

1 2 ... 13 14 15 16 17 18

No comments

Apple Xserve RAID User's guide User Manual Page 18