Instruction manual

11
ATTO Technology Inc. FastStream SC 5700 Installation and Operation Manual
2.2 Partition RAID groups
A RAID group may have several Terabytes of total data capacity because of the size of the included
drives. Partitions allow you to break up large RAID groups into smaller, more manageable groups
without using individual lower capacity RAID groups.
Most host systems can only address 2 TB per
LUN. Partitioning increases storage efficiency by
providing more LUNs without using lower
capacity RAID groups. Partitioning allows the
creation of multiple logical volumes. Use the
ExpressNAV interface and follow its directions
to divide the default one partition into
subpartitions.
Create partitions during initial setup
When you initially create RAID groups or add
RAID groups, you may partition large RAID
volumes into smaller, more manageable sizes.
1 If you are not already in the ExpressNAV
interface, type the IP address of your appliance,
as found in Use the ExpressNAV interface
on
page 29, in a standard browser, click Enter
Here and type in your user name and
password.
2 Initialize and verify your drives as found in
Initialize and verify drives
on page 7
3On the Initial Setup page, choose the Custom
Setup button.
4 Click on Next.
5 Select a RAID level. Refer to Designing RAID
groups on page i in the Appendix for more
information.
6 Type a name for your RAID group in the box
provided on the page under the Step 2
heading.
7 Click Next.
8 Click on the System Scan button to discover
the drives available for RAID configuration.
9 When the scanned drives box is populated,
select the drives for the RAID group named in
Step 6
of this procedure.
10 Click Next.
11 Partition the RAID group using the drop down
boxes and text boxes. If you do not want to use
partitions, click on the All Unallocated box.
12 Click Create.
13 Step 6 appears. Verify the setup, then click on
Commit to save your configuration.
14 A warning box appears. In the warning box,
verify that you want to complete the setup by
clicking on Yes. Clicking on No ends the
procedure without making a change. If you wish
to completely end this setup, click on Cancel on
the RAID Setup Wizard page.
Modify partitions after initial setup
CAUTIONCAUTION
Modifying partitions may cause loss of
existing data.
1 If you are not already in the ExpressNAV
interface, type the IP address of your appliance,
as found in Use the ExpressNAV interface
on
page 29, in a standard browser, click Enter
Here and type in your user name and
password.
2 Click on the Manage button.
3 Click on the RAID Groups arrow
4 Click on the Modify RAID Group Partitioning
button
5 Click Next
6 Select the RAID Group Name from the drop
down menu
7 Using the graphic and drop down boxes,
choose to either merge or split existing
partitions or assign different values for the
partition sizes.
8 Click Commit