Grass Valley UIM v.2.1.1 - Manual (Page 56)

56 UIM Instruction Manual February 5, 2008
Chapter 4 UIM-SAN-GEIP Installation: Grass Valley Open SAN System
Modify the master hosts file
Use the following steps to modify the master hosts file. The master hosts file is
maintained and copied to all networked devices in the Open SAN Shared Storage
system as well as other Profiles and UIMs in the facility and is used for name
resolution. In this procedure, you’ll add the IP addresses and host names for all UIMs.
After modifying the master hosts file, you must copy it to all networked devices in the
Open SAN system, as well as other Profile platforms and UIMs in the facility.
If you are deploying a UIM-SAN-GEIP in an existing Open SAN system, you may
have to modify all Profile XP platform host names to meet the host naming
requirements described in
“Specify host names in the Open SAN” on page 50 . If this
is the case, you also need to modify the Profile XP hostname entries in the master host
file.
About UIM-SAN-GEIP host name aliasing
Host name aliasing in the hosts file is used to assign the UIM-SAN-GEIP as the
1000BT streaming interface for the Profile XP platforms in the Open SAN system.
Aliasing is accomplished in the hosts file by assigning multiple host names to the
same IP address, in this case, the UIM-SAN-GEIP network interface IP addresses. To
assign the UIM-SAN-GEIP as the 1000BT interface, aliases for each Profile platform
in the Open SAN must be added using a strict naming convention as shown below.
Referring to the example Open SAN system on page 57 , you would add the following
entries to the master hosts file:
192.168.100.157 SAN1_UIM1 SAN1_XP1_UIM SAN1_XP2_UIM
192.168.200.157 SAN1_UIM1_he0 SAN1_XP1_he0 SAN1_XP2_he0
From this example, you can see that the UIM-SAN-GEIP control LAN network
interface mapped to the UIM hostname SAN1_UIM1 is also known by the aliases
SAN1_XP1_UIM, and SAN1_XP2_UIM. Also, the UIM-SAN-GEIP streaming LAN
network interface mapped to SAN1_UIM1_he0 is also known by its aliases
SAN1_XP1_he0, and SAN1_XP2_he0. (Refer to
“Specify host names in the Open
SAN” on page 50 for an explanation of the “_he0” suffix.) With these settings,
SAN1_XP1 and SAN1_XP2 will both proxy their transfer requests to SAN1_UIM1.