Sonnet Technologies Fusion RAID Configuration Tool and Utilities Operation Manual - Manual (Page 17)

11
Hot Spares Setup and Usage
If a drive in a parity RAID group becomes degraded or faulted,
the RAID group will lose some redundancy until a new member
(drive) is rebuilt into it. You can automate this procedure by
designating one or more drives as Hot Spares. You may set up a
pool of Hot Spare drives of different sizes appropriate for your
RAID groups.
If the Sonnet RAID controller detects a faulted drive in a RAID
group with a designated Hot Spare:
• The controller searches the Hot Spare pool for the smallest drive
of sufficient capacity to substitute for the faulted drive.
• The faulted drive is replaced with one from the Hot Spare pool.
• The controller begins an automatic rebuild of the RAID group.
Select RAID Management > New Hot Spare (or Delete Hot Spare)
from the application menu, and then follow the instructions on
the screen.
Mac OS Drive Formatting
1. Depending on how you configure your setup, a Disk Insertion
window stating that there is an unreadable volume will
appear at some point during the RAID group creation process;
click Initialize, and then Disk Utility will open.
2. In the Disk Utility window, each RAID group you created
using the ATTO Configuration Tool will appear as a single
volume. Select the volume, and then click the Erase tab at the
top of the window.
3. Click the Erase button; a window will appear asking you to
approve your choice; click Erase.
4. Repeat steps 2 and 3 for each remaining unformatted RAID
group, and then close Disk Utility.
5. Depending on how you configured the RAID groups, the
volumes may already be mounted and present on the desktop.
If you created a DVRAID, RAID 4, RAID 5, or RAID 6 RAID
group, configuration will take much longer. You may check
on the progress by double-clicking the volume name in the
lower pane of the ATTO Configuration Tool window.
6. Once all the RAID groups have been formatted and finish
building, they are ready to use.
1.2 RAID Group Setup and Management
Support Note for Power Mac G5 Users: When
creating RAID groups 16TB or larger, uncheck the Install
Mac OS 9 Drivers checkbox; OS 9 drivers do not support volumes
greater than 16TB.
Support Note: Hard drives in the Hot Spare pool should
be of appropriate capacity to the RAID group so that
smaller drives are not replaced by much larger Hot Spare drives.
Windows 7/Server 2008/Vista Drive Formatting
1. Click Start, then right-click Computer and select Manage.
2. In the Computer Management window, click Storage in the
left pane to expand the list (if necessary), and then click Disk
Management.
3. When the Initialize Disk window appears, select the RAID
volume you created. Select the GPT partition style unless you
need to access your RAID storage from a computer running
32-bit Windows XP Professional or 32-bit Windows Server
2003. Click OK.
4. In the Disk Management window, each RAID group you
created will appear (listed as “unallocated”) as a single volume.
Right-click where the word “unallocated” appears, and then
select New Simple Volume.
5. When the Welcome to the New Simple Volume Wizard window
appears, click Next to start the process.
6. When the New Simple Volume Wizard window appears, click
Next.
7. When the Specify Volume Size window appears, click Next if
you want all of the Fusion system’s capacity to remain as one
block (volume). Otherwise, adjust the volume size to meet
your needs, and then click Next.
8. When the Assign Drive Letter or Path window appears, select
Assign the following drive letter, choose a letter, and then
click Next.
9. When the Format Partition window appears, enter a new
name for the volume table if you’d like. For RAID volumes
up to 16TB, accept the default allocation unit size; for RAID
volumes greater than 16TB, select 8192 from the drop-down
menu. Select Perform a quick format, and then click Next.
Note: If you do not select the quick format option, this process will take
much longer to complete.
10. When the next window appears, click Finish.
11. Repeat steps 4–10 for each remaining “unallocated” disk.
12. Depending on how you configured the RAID groups, the
volumes may already be available to the system. If you
created a DVRAID, RAID 4, RAID 5, or RAID 6 RAID group,
configuration will take much longer. You may check on the
progress by double-clicking the volume name in the lower
pane of the ATTO Configuration Tool window.
13. Once all the RAID groups have been formatted and finish
building, they are ready to use.