Bosch DSA E Series, Installation Manual

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140 en | Upgrading Memory in the E2600 Controller Canisters E2600 DSA E-Series iSCSI Disk Arrays
- | V2 | 2012.09 Installation Manual Bosch Security Systems
Figure 19.1 Controller A Position in the E2600 Controller-Drive Tray
3. Put on antistatic protection
4. Label each cable that is attached to each controller canister so that you can reconnect
each cable correctly after the controller canisters are reinstalled.
5. Stop all host I/O operations.
6. Take controller A offline, and wait for the Controller Service Action Allowed LED to come
on.
Use either the GUI (first bullet) or the command line interface (CLI, second bullet) to
take controller A offline.
– In the Physical Pane, select controller A and select Advanced >> Recovery >> Place
Controller >> Offline.
–
set controller [a] availability=offline;
Taking controller A offline makes sure that all of the data currently in cache on both
controller canisters is successfully written to disk prior to the upgrade. This command
also makes sure that no data is stored on the cache backup memory devices.
7. Turn off the Power switch on each of the power-fan canisters, and wait until all LED and
seven-segment display activity on the rear of the controller-drive tray has stopped.
Figure 19.2 Power Supplies in the E2600 Controller-Drive Tray
1 Controller A
2 Controller B
NOTICE!
Possible degraded performance
To prevent degraded performance, do not twist, fold, pinch, or step on the fiber-optic cables.
Do not bend the fiber-optic cables tighter than a 5-cm (2-in.) radius.
CAUTION!
Possible data loss or corruption
Wait for the blue Service Action Allowed LED on controller A to come on before you turn off
the power to either controller; otherwise, possible data loss or corruption might occur.
1 Power-Fan Canister for Controller A
2 Power-Fan Canister for Controller B