EonStor DS S12/S16/S24 Series Hardware Manual
5.1
Replacing the Controller Module(s): Single / Dual
/ Simultaneous Upgrade
WARNING
Do not mix controller modules from different models. Each controller has a unique ID
which is applied to host port names. As the result, you may encounter SAN problems
with identical port names on multiple systems.
When removing a RAID controller from a single-controller system, ensure that your
applications have been shut down beforehand.
To replace the controller module, follow these steps.
1.
(For single controller models or when replacing both controllers
simultaneously) Confirm all controllers have the same firmwares; export
and save the NVRAM data.
For detail procedures on how to upgrade the
controller firmware, please refer to
a. EONSTOR DS SANWatch User Manual, section 4.8.4 Upgrading the Firmware on
page 127
b. Firmware Manual, section 17 System Functions: Upgrading Firmware” on page 322
To export and save NVRAM data, please refer to the Firmware Manual, section
3.7.5 Saving NVRAM to Disks on page 82.
2. Prepare a clean, static-free work pad or container to place the controller.
3.
(For single controller models or when replacing both controllers
simultaneously) Shut the system down.
Stop all I/O access to the system and
make sure all cached writes have been distributed to disk drives using firmware’s
Main Menu -> System Functions > Shutdown controller function.
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