IBM Storwize V7000, Introduction And Implementation Manual

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Chapter 2. Introduction to IBM Flex System V7000 Storage Node
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2.5 IBM Flex System V7000 Storage Node hardware
The IBM Flex System V7000 Storage Node solution is a modular storage system that is built
to interface and reside within the IBM Flex System Enterprise Chassis. When sold in the IBM
PureFlex system, it will come with a four port FC host interface card (HIC) preinstalled in it
and configured to the FC switches in the Flex Enterprise Chassis. For the “Build to Order”
(BTO) solutions you can select the configuration of the interface capability you require for your
specific environment.
Host connectivity to compute nodes is provided through optional Flex System V7000 control
enclosure network cards that connect to the Flex System Enterprise Chassis midplane and its
switch modules. Available options are as follows:
򐂰 10 Gb Converged Network Adapter (CNA) 2 Port Daughter Card for FCoE and iSCSI
fabric connections
򐂰 8 Gb Fibre Channel (FC) 4 Port Daughter Card for Fibre Channel fabric connections.
The Flex System V7000 Storage Node has two available slots in each control canister for
populating with host network adapters. The adapters in each of the node canisters must be of
the same type in each of the slots; so the adapters are installed in pairs (one adapter per
node canister) and the following adapter configurations are supported for the entire Flex
System V7000 Storage Node:
򐂰
Two or four 10 Gb CNA network adapters
򐂰
Two 4-port 8 Gb FC network adapters
򐂰
Two 10 Gb CNA network adapters and two 4-port 8 Gb FC network adapters
The 2-port 10 Gb Ethernet network adapters (up to two per canister) are used for iSCSI host
attachment and/or FCoE attachment.
The configuration of the host attachments on one control canister must match the
configuration of the second.
There is a 6 Gbps SAS port on the front of the canister for connecting optional expansions
enclosures.
2.5.1 Control canister
The control canister is responsible for the management of all the virtualization, RAID
functions, advanced features and functions of IBM Flex System V7000 Storage Node and all
command and I/O to its internal drive slots and the expansions that it is connected to.
The control canister is a Customer Replaceable Unit (CRU). Figure 2-3 shows a picture of the
control canister with its cover removed.