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Chapter 4. Setting up storage
This chapter gives details for setting up and configuring the Model 326 storage.
The Model 326 has a preconfigured shared storage RAID configuration on the first
IBM 5191 RAID Storage Controller. The storage is formatted as an array, at
RAID-level 5, consisting of the following LUNs:
v
A LUN of 500 MB, for the Quorum drive (drive letter G ). The Quorum drive is
used by Microsoft Cluster Service to manage clustered resources.
Note: See “Recovering from a corrupted Quorum drive” on page 50 in the event
of a power loss to both nodes or a hardware failure that corrupts Quorum
data.
v
A second LUN, composed of the remaining space and used as a shared drive
with one built-in hot spare.
You can use this preconfigured storage, or delete it and configure new storage. If
the preconfigured storage meets your requirements, you can proceed with
“Chapter 5. Completing networking, clustering, and storage access setup” on
page 37. If you delete it, you must complete the steps in this chapter.
Note: When you set up the shared storage with Storage Manager, you must
configure the storage on one node only. During the setup of shared storage,
leave the joining node powered off.
To configure the storage, use the IBM FAStT Storage Manager (Storage Manager).
With Storage Manager, you can configure and manage the DASD mounted in the
IBM 5191 RAID Storage Controller Model 0RU (storage controller) and IBM 5192
Network Attached Storage Storage Unit Model 0RU (storage unit) enclosures.
Storage Manager provides a GUI for managing storage subsystems. It features two
main windows:
Enterprise Management Use this window to add, remove, and monitor the
storage subsystem within the management domain.
Subsystem Management Use this window to manage individual storage
subsystem components.
You manage the storage subsystems through the Fibre Channel I/O path between
the engines and the RAID controllers (host-agent method). The Storage Manager
software is installed on both engines, allowing you to manage the storage
subsystems from a Terminal Services session open on either node’s engine.
Direct-managed method for managing the 5191 RAID Storage
Controller
The Storage Manager Application provides two methods for managing storage
subsystems: the host-agent managed method and the direct-managed method. The
Model 326 comes preconfigured with the host-agent management method, as
described in “Starting Enterprise Management” on page 31. You can use the
direct-managed method when an alternate management path is required (for
example, during a failure of the host-agent management path).
© Copyright IBM Corp. 2002
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