2.
Purchase two new drives and a drive expansion enclosure (if there are not any
available drive slots in the new storage subsystem).
3.
Prepare the new storage subsystem for the upgrade:
a.
Unpack the new storage subsystem, and install it in a rack.
b.
If required, unpack and connect the storage enclosure to the new storage
subsystem. Install the two new drives in the drive slots.
c.
Power on the drive expansion enclosure (if installed) and the storage
subsystem.
d.
Connect the new storage subsystem to the systems management network.
Use the default IP addresses of the controllers, and record the version of the
controller firmware on the new storage subsystem.
The default TCP/IP address of controller A Ethernet port 1 is
192.168.128.101
. The default TCP/IP address of controller A Ethernet port
2 is
192.168.129.101
. The default TCP/IP address of controller B Ethernet
port 1 is
192.168.128.102
. The default TCP/IP address of controller B
Ethernet port 2 is
192.168.129.102
.
4.
Prepare the original storage subsystem for the upgrade. For more information,
refer to step 3 on page 47.
5.
Update the controller firmware in the new storage subsystem with the latest
online version. To determine the appropriate version of firmware to be installed
in the new storage subsystem, refer to Figure 9 on page 49.
a.
Perform steps 4c-4g (see 4 on page 48) and 5a or 5b and 5c (see 5 on page
50) to upgrade the controller firmware and to switch from the original to
the new storage subsystem.
6.
Migrate the drive and drive expansion enclosures to the new storage subsystem
configuration. For more information, refer to “Migrating storage enclosures
with hard disk drives that have defined logical drive configurations” on page
27.
7.
Prepare the new storage subsystem for use. For more information, refer to step
6 on page 51.
Supported upgrades
The following table describes the supported storage subsystem upgrades. You can
submit a request for price quote (RPQ) to your IBM marketing representative or
authorized reseller for upgrading scenarios of the storage subsystem that are not
described in this table.
Table 9. Supported replacement storage subsystems
Storage subsystem model
Supported replacement storage subsystem models
DCS3700
DCS3700, DCS3700 with Performance Module controllers, DCS3700 with Gen2
Controllers.
DCS3700 with Performance
Module controllers
DCS3700, DCS3700 with Performance Module controllers, DCS3700 with Gen2
Controllers.
DCS3700 with Gen2
Controllers
DCS3700, DCS3700 with Performance Module controllers, DCS3700 with Gen2
Controllers.
DCS3860
DCS3860, DCS3860 with Gen2 controllers
DCS3860 with Gen2
controllers
DCS3860 with Gen2 controllers
Chapter 4. Upgrading a storage subsystem controller
43
Summary of Contents for System Storage DCS Series
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