To add a control enclosure to an existing
FlashSystem 9100
system, the IBM SSR must
first install the new control enclosure in the rack. The SSR then cables the system to a Fibre
Channel switch, to a 25 Gbps Ethernet switch, or between Fibre Channel adapters.
About this task
When you are using the SAN, you must connect the new control enclosure to the system through a
zone that you configure in the SAN. When you are using RDMA over Ethernet, you must assign IP
addresses. When you are connecting the Fibre Channel adapters directly, you can bypass network
setup.
The management GUI requires a supported web
browser.
Procedure
To add a control enclosure to an existing system, complete the following
steps.
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The SSR installs the
FlashSystem 9100
control enclosure and completes cabling.
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The SSR connects the canisters directly, connects them to the storage area network, or connects
them to a 25 Gbps (or faster) Ethernet network.
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To directly connect the new control enclosure to a control enclosure with an existing system,
see Connecting two control enclosures directly with Fibre Channel cables.
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To connect the new control enclosure that uses the SAN, see Connecting Fibre Channel cables to the control enclosure.
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To connect the new control enclosure by using RDMA, see Configuration details for using RDMA-capable Ethernet ports for node-to-node communications.
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For SAN connections, complete all SAN configuration before installation and you must update the
network planning sheets.
The correct zoning provides a way for the Fibre Channel ports to connect to each other.
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For RDM connections, ensure that the new control enclosure is connected to the same Ethernet
subnet as the existing system.
For the new node canisters to use RDMA over Ethernet, use the service assistant tool or the
satask chnodeip command to set the node IP of each new node in the system.
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In
the management GUI, select . On the System -- Overview page, select Add
Enclosure. When a new enclosure is cabled correctly to the system, the Add
Enclosure action automatically displays on the System -- Overview
page. If this action does not appear, review the installation instructions to ensure that the new
enclosure is cabled correctly. You can also add an enclosure by selecting Add
Enclosure from the System Actions menu.
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Complete the instructions in the Add Enclosures wizard until the FlashSystem 9100 control enclosure is added to
the system.
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If exactly two control enclosures are in the system, you must set up a quorum disk or
application outside of the system. If the two control enclosures lose communication with each other,
the quorum disk prevents both I/O groups from going offline. For more information, see Configuring quorum.