HP XP20000/XP24000 HP StorageWorks XP Disk Array Configuration Guide (T5278-96 - Page 82

Fabric zoning and LUN security for multiple operating systems, Connecting the disk array, Restarting the Linux server

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Figure 10 Multi-cluster environment (Linux) Within the SAN, the clusters can be homogeneous (all the same operating system) or heterogeneous (mixed operating systems). How you configure LUN security and fabric zoning depends on the operating system mix and the SAN configuration. Fabric zoning and LUN security for multiple operating systems You can connect multiple clusters with multiple operating systems to the same switch and fabric using appropriate zoning and LUN security as follows: • Storage port zones can overlap if more than one operating system needs to share an array port. • Heterogeneous operating systems can share an array port if you set the appropriate host group and mode. All others must connect to a dedicated array port. • Use LUN Manager for LUN isolation when multiple hosts connect through a shared array port. LUN Manager provides LUN security by allowing you to restrict which LUNs each host can access. Table 18 Fabric zoning and LUN security settings (Linux) Environment Standalone SAN (non-clustered) Clustered SAN Multi-Cluster SAN OS Mix Fabric Zoning homogeneous (a single OS type present Not required in the SAN) heterogeneous (more than one OS type Required present in the SAN) LUN Security Must be used when multiple hosts or cluster nodes connect through a shared port Connecting the disk array The HP service representative performs the following steps to connect the disk array to the host: 1. Verifying operational status of the disk array channel adapters, LDEVs, and paths. 2. Connecting the Fibre Channel cables between the disk array and the fabric switch or host. 3. Verifying the ready status of the disk array and peripherals. Restarting the Linux server To recognize the new device(s), restart the Linux server as follows: 82 Linux

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Figure 10 Multi-cluster environment (Linux)
Within the SAN, the clusters can be homogeneous (all the same operating system) or heterogeneous
(mixed operating systems). How you configure LUN security and fabric zoning depends on the
operating system mix and the SAN configuration.
Fabric zoning and LUN security for multiple operating systems
You can connect multiple clusters with multiple operating systems to the same switch and fabric
using appropriate zoning and LUN security as follows:
•
Storage port zones can overlap if more than one operating system needs to share an array
port.
•
Heterogeneous operating systems can share an array port if you set the appropriate host
group and mode. All others must connect to a dedicated array port.
•
Use LUN Manager for LUN isolation when multiple hosts connect through a shared array port.
LUN Manager provides LUN security by allowing you to restrict which LUNs each host can
access.
Table 18 Fabric zoning and LUN security settings (Linux)
LUN Security
Fabric Zoning
OS Mix
Environment
Must be used when multiple
hosts or cluster nodes connect
through a shared port
Not required
homogeneous (a single OS type present
in the SAN)
Standalone SAN
(non-clustered)
Clustered SAN
Multi-Cluster SAN
Required
heterogeneous (more than one OS type
present in the SAN)
Connecting the disk array
The HP service representative performs the following steps to connect the disk array to the host:
1.
Verifying operational status of the disk array channel adapters, LDEVs, and paths.
2.
Connecting the Fibre Channel cables between the disk array and the fabric switch or host.
3.
Verifying the ready status of the disk array and peripherals.
Restarting the Linux server
To recognize the new device(s), restart the Linux server as follows:
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Linux