Chapter 1. Storwize V7000 Hardware Components - IBM Storwize V7000 Troubleshooting And Maintenance Manual

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Chapter 1. Storwize V7000 hardware components

A Storwize V7000 system consists of one or more machine type 2076 rack-mounted

enclosures.

There are several model types. The main differences among the model types are

the following items:

v The number of drives that an enclosure can hold. Drives are located on the front

v Whether the model is a control enclosure or an expansion enclosure.

v If the control enclosure has either 1 Gbps Ethernet capability or 10 Gbps

These are the control enclosure models:

v Machine type and model 2076-112, which can hold up to 12 3.5-inch drives

v Machine type and model 2076-124, which can hold up to 24 2.5-inch drives

v Machine type and model 2076-312, which can hold up to 12 3.5-inch drives and

v Machine type and model 2076-324, which can hold up to 24 2.5-inch drives and

These are the expansion enclosure models:

v Machine type and model 2076-212, which can hold up to 12 3.5-inch drives

v Machine type and model 2076-224, which can hold up to 24 2.5-inch drives

The machine type and model (MTM) are shown on these labels that are located on

the front and the rear of each enclosure:

v The left end cap on the front of the enclosure. The label also indicates if the

v The rear of the left enclosure flange.

Note: The labels also show the enclosure serial number. You must know the serial

number when you contact IBM support.

Because of the differences between the enclosures, you must be able to distinguish

between the control enclosures and the expansion enclosures when you service the

system. Be aware of the following differences:

v The model type that is shown on the labels.

v The model description that is shown on the left end cap.

of the enclosure. An enclosure can hold up to 12 3.5-inch drives or up to 24

2.5-inch drives.

Control enclosures contain the main processing units that control the whole

system. They are where external systems, such as host application servers, other

storage systems, and management workstations are connected through the

Ethernet ports or Fibre Channel ports. Control enclosures can also be connected

to expansion enclosures through the serial-attached SCSI (SAS) ports.

Expansion enclosures contain additional storage capacity. Expansion enclosures

connect either to control enclosures or to other expansion enclosures through the

SAS ports.

Ethernet capability.

includes 10 Gbps Ethernet capability

enclosure is a control enclosure or an expansion enclosure.

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