Specifications

14
• Or if an appliance boots up with drives
missing or faulted, the FastStream tries to
switch them out automatically.
• If no unallocated drive is available, you must
replace the faulted drive and a rebuild
begins.
• Hot Spares are not required, allowing the
maximum number of drives for data storage.
However, if you require maximum fault
tolerance, it is best practice to have a Hot
Spare available to supply the unallocated
drive for immediate use. Refer to FastStream
process: adding or removing Hot Spares on
page 24.
• Hot Spares are used first, regardless of the
Auto-Rebuild setting.
10 Click on the
System Scan button to discover
the drives available for RAID configuration.
11 When the scanned drives box is populated,
click on the boxes representing the drives for
the RAID group named in Step 5
.
12 Click
Next.
13 The
Partition wizard appears.
• 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.
• Most host systems can address only 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.
Note
If you don't want to use partitions, click on the
All Unallocated button.
a. Enter the desired partition size from the
available RAID group capability.
b. Click
Create.
c. Repeat entering the partition size and
clicking on
Create as often as you need to
partition the remaining capacity, or,
whenever you have completed designating
partitions, click on the
All Unallocated
button to put all the remaining capacity into
one partition.
14 Click
Next. The storage capacity is allocated.
15 RAID partitions are mapped onto the Fibre
Channel network as FC LUNs. Select the
method you wish to use to map the partitions.
• If you select
Auto, all mapping for all RAID
groups attached to this FastStream is
changed, destroying any previous mapping.
• If you do not wish to change the mapping of
your other RAID groups, select
Manual.
Manual mapping allows you to make LUN
assignments for each RAID partition in the
selected RAID group.
a. From the RAID Configuration page
presented, under
Select the mapping
method,
click the Manual radio button.
b. Click on any partition to map that partition to
a Port and LUN.
16 Click on
Commit to save your configuration.
17 A warning box tells you that all data on the
attached disks is to be destroyed and the
rebuild process may take several hours to
complete.
In the warning box, verify that you want to
complete the configuration by clicking on
Yes.
Clicking on
No ends the procedure without
making a change.
18 Click on
Commit.
19 The FastStream configures the storage: the
process may take several hours. When the
process is complete, the
Health and Status
Monitor
page appears.