Upgrading a single-controller to a dual-controller when there is no attached EXP3000 enclosure

If you are upgrading a single-controller DS3200 storage subsystem to a dual-controller DS3200 storage subsystem and there are no EXP3000 storage expansion enclosures attached to the DS3200 storage subsystem, see “Installing a controller” on page 64.

Upgrading a single-controller to a dual-controller when there is one or more EXP3000 enclosures attached to the storage subsystem

Before you upgrade the DS3200 storage subsystem from a single-controller to a dual-controller, make sure that:

vYou purchase a second environmental services module (ESM) for each EXP3000 storage expansion enclosure that is attached to the DS3200 storage subsystem. You install the second ESM during this procedure.

vYou purchase the SAS cables that are required to create a redundant drive enclosure path.

To upgrade a single-controller DS3200 storage subsystem to a dual-controller DS3200 storage subsystem when there are EXP3000 storage expansion enclosures attached to the DS3200, complete the following steps:

1.Turn off the DS3200 storage subsystem and all attached EXP3000 storage expansion enclosures.

2.Install a second RAID controller in the DS3200 storage subsystem by using the instructions in “Installing a controller” on page 64.

3.Install a second ESM in each EXP3000 that is connected to the DS3200 storage subsystem:

a.Read the safety information that begins on page xi and “Best practices guidelines” on page 6.

b.Remove the ESM filler panel from the rightmost ESM bay of the EXP3000:

1)On the left side of the ESM filler panel, press the orange release tab to the right just enough to release the handle (no more than 6 mm [0.25 in.]) as you rotate the handle upward.

2)Using the handle, gently slide the ESM filler panel out of the EXP3000. Save the ESM filler panel for future use.

c.Hold the new ESM so that the handle is fully extended.

d.Gently slide the ESM into the bay until it stops. Rotate the handle downward into the closed position until it clicks.

4.Using the information provided in “DS3200 storage subsystem drive cabling topologies” on page 28, use SAS cables to create a redundant drive-channel path from the DS3200 RAID controllers to the EXP3000 ESMs.

Connecting secondary interface cables

This section applies to direct (out-of-band) management configurations only. If your configuration uses host-agent (in-band) management, skip this section.

Use the Ethernet management port on the rear of the storage subsystem to connect the controllers for direct management of the storage subsystems (see “Direct (out-of-band) management method” on page 36).

Chapter 3. Cabling the storage subsystem 33

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IBM DS3200 Storage Subsystem manual Connecting secondary interface cables