User manual

logIcal drIve
CreAte logiCAl drive
After creating a disk array, you need to create a logical drive on it. The
logical drive can use part or all of the available storage capacity in the
disk array. If the DataGuard Appliance will be used as data storage
on an iSCSI SAN, you will need to set the capacity of the iSCSI drive
during creation of a logical drive. Follow the steps below:
1. From the Storage tab, click Logical Drive.
2. Click the Create Logical Drive button.
3. Select the disk array you want to use and click the Next button.
4. In the Create Logical Drive window, complete the required settings:
a. In the Alias field, enter an alias at a maximum of 32 characters
(includes letters, numbers, space between characters, and
underline).
b. Set the LDType as NAS or iSCSI Target.
c. Select a RAID Level from the drop-down menu. Available RAID
options will depend on the number of physical drives in the disk
array. (See “RAID Levels” on page 33.)
d. In the Capacity field, accept the default maximum capacity or
enter a lesser capacity (size in MB, GB or TB). Any remaining
capacity is available for an additional logical drive.
e. Choose the Stripe size: 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB.
(See “Stripe Size” on page 3333)
f. Choose the Sector size: 512 B, 1 KB, 2 KB, or 4 KB. (See “Sector
Size” on page 3333)
g. Choose the Read Policy: Read Cache, Read Ahead, or No Cache
(see “Stripe Size” on page 3333)
h. Choose the Write Policy: Write Back or Write Through. (See
“Write Policy” on page 3333)
i. Click the Add button.
j. The new logical drive appears in the New Logical Drives list. If there
is capacity remaining, you can create an additional logical drive.
5. When done, click the Submit button. The new logical drive(s) will
appear in the Logical Drive list. New logical drives are automatically
synchronized if necessary. You can access the logical drive during
synchronization, although performance may be slower than usual.
6. For logical drives configured as a NAS logical disk (LDType NAS)
it is now necessary to create a file system. See the next page for
instructions to continue setting up the logical drive.
7. Synchronization
Once you have finished creating a logical drive, the DataGuard
Appliance will begin synchronization. The logical drive will be
accessible during this process, but performance may be diminished.
For more information on Synchronization, see page 53.
Storage > Logical Drive
Storage > Logical Drive > Create Logical Drive
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