HP 9000 Virtual Library System - Manual (Page 43)

4 Storage Configuration
This section describes how to configure the storage pool policy and add or remove storage as
needed after the nodes have been configured.
Managing VLS Capacity
There are several ways to manage the capacity of your system:
•
Increase the number of VLS nodes
•
Increase the number of VLS capacity enclosures. See Adding VLS Capacity .
•
Reduce the number of VLS disk array enclosures. See Removing VLS Capacity .
•
Create storage pools. See Configuring the Storage Pool Policy .
HP recommends the following minimum system set-up with a VLS9200 4GB node:
•
one VLS9200 node
•
one VLS9200 base array enclosure
•
one VLS9200 capacity array enclosure
•
one Ethernet switch
HP recommends the following minimum system set-up with a VLS9200 high performance (2U)
node:
•
one VLS9200 high performance node
•
one VLS9200 base array enclosure
•
three VLS9200 capacity disk array enclosures
•
one Ethernet switch
For larger systems, HP recommends purchasing a 40–port connectivity kit. This contains two Ethernet
switches and two Fibre Channel switches.
Adding VLS Capacity
Add capacity by increasing the number of VLS9200 capacity enclosures in your VLS system. New
to the VLS family is the ability to purchase individual capacity enclosures instead of purchasing a
capacity kit containing an array. (An array contains one base enclosure and three capacity
enclosures.)
Each base enclosure can support three capacity enclosures so purchase accordingly. For example,
if you have a base enclosure and one capacity enclosure, purchase 1–2 capacity enclosures. If
you have a base enclosure and two capacity enclosures, purchase one additional capacity
enclosure; for more capacity, purchase another base enclosure and up to three more capacity
enclosures.
Each VLS9200 node can support up to two arrays. If you intend to add base and capacity
enclosures that exceed that limit, purchase an additional node.
NOTE: The VLS sequentially numbers arrays as they are added, starting with Array 1. (Array
numbering previously began at 0. Starting at array 1 is new to VLS firmware 6.1.0.) Only add
one VLS array at a time so you can control the number assigned to each array.
NOTE: The Fibre Channel and Ethernet switches should be powered on before adding storage
capacity.
To add a VLS9200 disk array enclosure:
Managing VLS Capacity 43