Storage system considerations, San zoning, Host groups – HP Storage Essentials Enterprise Edition Software User Manual
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Install HP Storage Essentials SRM and HP SIM
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NOTE:
When you create custom users, they must belong to the Storage Administrator role or
Domain Administrator role. Only users assigned to the Storage Administrator role or Domain
Administrator role can access the Application Integration Software for SAP ACC.
Storage System Considerations
This section describes the following:
SAN Zoning
For a Managed Node to be able to access the physical storage device, it has to be physically
connected to the storage array using a Storage Area Network (SAN). If any zone security is
implemented in the SAN, the Managed Node must be added to the appropriate SAN zone for the
Managed Node to have logical access to the storage array.
The Application Integration Software for SAP ACC does not change any SAN configuration in order
for a Managed Node to have access to the Storage Array.
Host Groups
For HP StorageWorks XP arrays, each Managed Node in the SAP Landscape must have some
physical connection to the storage array, and a host group must be created on the front-end host
port, of the storage array, for each Managed Node. The Managed Node's host bus adapter (HBA)
world wide name (WWN) must be added to the host group in order for the host to be able to
access any devices in that host group. This procedure must be performed even if the Managed
Node will not initially have access to any physical storage. During the device presentation phase of
the operation, the Application Integration Software will determine the HBA WWN for the
requesting Managed Node and must be able to match this to some host groups defined on the
array.
For HP StorageWorks EVA arrays, each Managed Node in the SAP Landscape must have some
physical connection to the storage array, and a host folder with the WWN of all HBAs of that host
must be created in the array configuration.
Reserved-Group
In the HP StorageWorks XP array, a logical device (LDEV) is considered unused (or available) if the
device is not presented to any front-end port or host group. One of the advantages of using
Adaptive Computing Controller is the ability to stop some SAP resources, and then, when these
resources are needed again, to be able to start them on any available Managed Node. When a
resource is stopped using the SAP ACC, the Application Integration Software will un-present the
physical storage (LDEVs) from the host group, and for some time, the physical storage will not be
presented to any port. In order to protect the physical storage from mistakenly being identified as
available, the Application Integration Software will create a Reserved-Group host group on a