Shutting Down a Clustered Configuration (CLI)
b.
Disconnect the power cords from the external power source for the cabinet.
Note - All power cords must be disconnected to completely remove power from the disk shelf.
For more information, see “Powering Off a Disk Shelf” in Oracle ZFS Storage Appliance
Installation Guide.
Related Topics
■
“Understanding Clustering” on page 201
■
“Cluster Terminology” on page 201
■
“Cluster Resource Management” on page 206
■
“Cluster Takeover and Failback” on page 209
■
“Configuration Changes in a Clustered Environment” on page 211
Cluster Terminology
The terms defined here are used throughout the document. In most cases, they are explained
in greater context and detail along with the broader concepts involved. The cluster states and
resource types are described in the next section. Refer back to this section for reference as
needed.
■
Export: the process of making a resource inactive on a particular controller
■
Failback: the process of moving from AKCS_OWNER state to AKCS_CLUSTERED, in
which all foreign resources (those assigned to the peer) are exported, then imported by the
peer
■
Import: the process of making a resource active on a particular controller
■
Peer: the other appliance in a cluster
■
Rejoin: to retrieve and resynchronize the resource map from the peer
■
Resource: a physical or virtual object present, and possibly active, on one or both
controllers
■
Takeover: the process of moving from AKCS_CLUSTERED or AKCS_STRIPPED state to
AKCS_OWNER, in which all resources are imported
Understanding Clustering
The clustering subsystem incorporated into the series consists of three main building blocks
(see the following figure). The cluster I/O subsystem and the hardware device provide
Configuring the Appliance 201
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