Installation manual

19 ATTO Technology Inc. ATTO Utilities Installation and Operation Manual
Exhibit 1.4.1--2 The DVRAID wizard automatically sets up the number of RAID groups based on the number of
available drives. Each RAID group uses one drive as a parity drive.
If you do not have 6, 7, 8, 12, 14, 16 or 24 drives, you
cannot use the DVRAID wizard.
If you do not want all storage set up in DVRAID or you
do not have the correct number of drives, use
Customizing a RAID setup .
1 After following Preliminary Steps on page 18,
select the DVRAID radio button in the
ConfigTool RAID wizard.
2 Click on OK.
3 The ExpressSAS RAID and ThunderStream
SC storage controller firmware automatically
uses all unassigned disks to create a DVRAID
configuration.
4 A confirmation dialog box asks you to confirm
the configuration you have chosen. Click Yes.
5 A message box displays while the RAID group
is being created.
When the RAID group is complete, the lower
panel displays the RAID group(s).
The DVRAID group begins to rebuild.
6 Double click on your RAID group in the lower
panel to see more detail such as the status of
the rebuild.
Wait until the rebuild is complete before
sending data to the storage.
Note
A RAID rebuild may take several hours to
complete.
7 Click on OK.
Customizing a RAID setup
1 After following Preliminary Steps on page 18,
select the Custom RAID radio button. See
Exhibit 1.4.1-1
on page 17.
2 Select the options to configure the new RAID
group (see Exhibit 1.5.1--3
on page 21):
• RAID Group Name: Assign a name to the
RAID group. The name must be unique and
no more than 14 characters.
• RAID Group Level: Select a RAID group
level from the drop-down box.
• RAID Group Interleave: Select an
interleave value. The default value is 128KB.
• RAID Group Mirror Count: Select a mirror
count, a copy of the original data stored on
a separate disk, for RAID groups that have
mirrors.
• Initialize: Select the initialization method for
the RAID group. The default is Advanced.
Advanced initialization is recommended for
new drives because the procedure erases
and verifies the drive media. The RAID
group is unavailable until initialization is
complete.
Express initialization performs RAID group
setup in the background and the RAID group
is immediately available for use.
3 Click Next.
4 Select the disk devices in the top panel and
drag them into the device area in the bottom
panel. See Exhibit 1.5.1--4
on page 21.
5 If you want the RAID group to be presented as
one virtual disk (partition) with the default RAID
group properties, click Finish.
If you want to change other parameters from
default values, click Next and select the desired
property.
Available drives RAID groups created Drives in each group
61 6
71 7
81 8
12 2 6
14 2 7
16 2 8
24 4 6