IBM V7000 User Manual

Chapter 2. Introduction to IBM Flex System V7000 Storage Node 55
2.5.2 Expansion canister
The expansion canister connects the expansion disks to the control canister using the SAS2
6 Gbps chain interface. This module also enables the daisy-chaining of additional expansions
to be connected behind it to further expand the capacity of the system’s storage. The
expansion canister is also a Customer Replaceable Unit (CRU). Figure 2-6 shows a picture of
the expansion canister with its cover removed.
Figure 2-6 Components and board layout of the expansion canister
As shown in Figure 2-6, the expansion canister does not contain a battery backup unit as the
control canister does. It does have an additional SAS2 connection (A) on it to allow for the
continuation of the chain to additional expansions. Figure 2-7 shows the SAS connection
ports and the status indicators on the front of the expansion enclosures.
Figure 2-7 Expansion enclosure with connection ports and indicators
As the indicators on the expansion enclosure are a subset of the ones that are available on
the control enclosure, Table 2-5 on page 54 provides the details of their definitions.
A

IBM V7000 Specifications

General

Model	IBM Storwize V7000
Storage Type	Hybrid Flash Array
Maximum Capacity	1.2PB
RAID Levels	0, 1, 5, 6, 10
Connectivity	8 Gbps Fibre Channel, 16 Gbps Fibre Channel, 1 Gbps iSCSI, 10 Gbps iSCSI
Management	Command-line interface (CLI), Graphical user interface (GUI)
Form Factor	2U
Drive Bays	12
Maximum Raw Capacity	1.2PB
Operating System Support	AIX, HP-UX, Linux, VMware, Windows
Data Reduction Features	Real-time Compression, Deduplication
Drive Types	SSD, HDD
Scalability	Scale-up (drive enclosures) and scale-out (clustering) capabilities