This section explains how to share disks between multiple L-Servers.
Prerequisites
Sharing of disks is possible when the managed servers and storage are shared using Fibre Channel connections.
First disk (System Volume) cannot be shared between L-Servers.
Control of simultaneous access to shared disks is performed by other applications, such as cluster systems.
Disk sharing between L-Servers is only possible for physical L-Servers that are use SAN boot.
Installation
Use the following procedure to create new L-Servers and to share disks between L-Servers:
Create an L-Server (First server)
Create an L-Server, referring to "Chapter 16 Creating L-Servers".
When creating an L-Server using the command, execute the rcxadm lserver create command.
For details on the rcxadm lserver create command, refer to "3.6 rcxadm lserver" and "13.3.1 Definition Information for Physical L-Servers (XML)" in the "Reference Guide (Command/XML) CE".
Creating an L-Server (For a second or later server)
Create an L-Server. In this case, select the following:
Select the disk to allocate to the L-Server.
Select [Allocated] for [Allocation Status].
Select the first L-Server created in "Creating an L-Server (For a first server)" as "Allocated L-Server".
When specifying these items as search conditions, connected shared disks can be filtered. For details, refer to "16.2.3 [Disk] Tab".
Attaching Shared Disks
Use the following procedure to attach disk resources to L-Servers created in advance and to share the disks:
Attaching shared disks to the first L-Server
To attach disks, use the procedure of "Attach new disks" in "17.2.3 Attaching and Detaching Disks".
Attaching disks to share for a second (or later) L-Server
To attach disks, use the procedure of "Attach new disks" in "17.2.3 Attaching and Detaching Disks". In this case, select the following:
Select the disk to allocate to the L-Server.
Select "Allocated" for "Allocation Status".
Select the first L-Server to which the shared disks have been attached as the "Allocated L-Server".
When specifying these items as search conditions, connected shared disks can be filtered. For details, refer to "16.2.3 [Disk] Tab".
