User guide

59MAXDATA SR1202 M1 – StorView
®
RAID User Guide
5. Select the LUN number for the logical drive from the “Mapped to” drop down menu.
6. Select the
Controller Ports you wish to make the logical drive available through. Place a check
mark next to the controller ports displayed.
If a logical drive is to be seen on all controller ports and to all host HBAs, then set the
availability by placing check marks for both Controller’s Port 0 and Port 1. Otherwise, place a
check mark on the appropriate controller port you wish the logical drive to be seen.
 NOTE
If you intend to perform a SAN LUN Mapping, a mapping will override any availability settings you
make here. By default the Availability is set enabled on all ports. You may leave the default settings
and control the availability later during LUN mapping.
It is important to understand the cabling configuration topology you selected during your hardware
setup. Refer to your hardware topology selected for the storage system to ensure you are assigning
your logical drives to the correct port.
7. Click the Create button to finish creating the logical drive.
You will receive a screen prompt that the command was successful, click the Close button. If
the command was unsuccessful, review the settings for incorrect parameters and hardware
for operational status.
8. You may continue to create more logical drives or exit by clicking the Close button.
In most storage system environments, creating the logical drives, assigning them their logical
unit number (LUN) and setting the availability is sufficient to meet the requirements for
setup. For more advanced and complex systems using storage area networks you may wish
to perform the more advanced SAN LUN Mapping, see ”SAN LUN Mapping” beginning on
page 63. Otherwise access your operating system to make the new drives available for use.
Saving the Configuration
Saving the configuration information is a very useful feature of StorView. When you create arrays,
create logical drives, establish hot spare drives, define SAN LUN Mappings, and change the
parameters of specific controller setting, a file is written (known as the configuration) that contains
all this important information to all the disk drives that are members of the array. StorView has the
ability to capture that file allowing you to save it to an external file. This can be a figurative lifesaver
should the situation occur where a configuration has become corrupt or damaged. With the ability to
reload the settings from a file, you are instantly able to re-establish your storage system. Otherwise
you would be required to rely on your memory or notes that you may have taken when you set up
the system, which may not be complete.
!
Caution
If you cannot restore the configuration exactly as it was, you will not be able to restore access to the
data and it will be lost.
Because of day to day changes to your system which will cause differences between the configuration
file and the actual configuration, the configuration should be periodically updated using the Save
function. An example of a change would be a drive failure, a hot spare drive automatically replaces
the failed drive and the data is rebuilt on the new drive with new parity. That indicates a significant
change in the configuration because the failed drive member has been removed, a new drive has taken
its place, and the hot spare is now an array member. Restoring a configuration with a missing drive
would be a mistake and would cause the existing data to be lost. Therefore it is vitally important that
when configuration changes occur, you should save the configuration again with a new file name.