Setup guide

NOTE For systems having 2XR or 2XR + 2XE, you have to configure one XR at a time with the XR Configuration
Utility. Connect the first XR and use the utility to configure. When done, disconnect the first XR and connect the
second XR. When the second XR is configured re-connect the two XRs.
To configure LUNs on XR-series storage:
1 Open a terminal and log in as root.
2 Go to the directory /usr/discreet/DKU/current/Utils/Storage/current/, and run the XR configuration utility
by typing:
./XR_config.pl
The script detects whether a LUN configuration exists on the storage attached to that workstation.
3 If a LUN configuration already exists on the storage, you are prompted for confirmation to overwrite
that configuration.
WARNING LUN configuration is destructive. Make sure you want to overwrite an existing configuration
before you confirm.
4 After the script detects the number of enclosures and drives, it prompts you to indicate the filesystem
your storage uses.
Type 2
5 When asked if you have a 2-loop or a 4-loop configuration, select the option that applies to your storage.
The XR configuration utility configures your storage.
NOTE You can monitor the LUN creation process by accessing the Stone Storage Manager utility on the
RAID controllers through a Web browser. However, it is not necessary to launch SSM for LUN configuration.
6 Type x to exit the configuration utility.
The XR configuration utility exits without configuring your storage if any of the following issues are detected:
■ An incorrect number of disks. The total number of disks must be a multiple of 12.
■ One of more of the enclosures do not have the correct firmware.
■ In a dual RAID enclosure environment, the number of expansion chassis on each RAID enclosure is not
the same.
Rescanning New LUNs from the Host Operating System
Newly-created LUNs must be rescanned by the host operating system to associate the proper disk devices
with each LUN.
To rescan LUNs:
1 Reboot the system.
2 To verify the new LUNs were detected, examine the content of the file /proc/scsi/scsi.
3 You can also see the current configuration by going to the /usr/discreet/DKU/current/Utils/Storage/current/
directory, and typing:
XR_config.pl -status
36 | Chapter 6 Configuring Storage