DIMMs
You must replace a DIMM when a memory mismatch is present, or you have a failed DIMM.
Overview and requirements
Before you replace DIMMs, you need to be aware of certain requirements and considerations.
Requirements for replacing DIMMs
The DIMMs in your storage array are fragile. Improper handling can lead to damage to the
DIMMs.
You can replace a DIMM for any EF300 or EF600 controller. You must verify the configuration of
your EF300 or EF600 controller to ensure the correct DIMM size is replaced.
Follow these rules to avoid damaging the DIMMs in your storage array:
• Prevent electrostatic discharge (ESD):
◦ Keep the DIMM in the ESD bag until you are ready to install it.
◦ Open the ESD bag by hand or cut the top off with a pair of scissors. Do not insert a metal
tool or knife into the ESD bag.
◦ Keep the ESD bag and any packing materials in case you must return a DIMM later.
Warning: Always wear an ESD wrist strap grounded
to an unpainted surface on your storage enclosure
chassis.
• Handle DIMMs carefully:
◦ Always use two hands when removing, installing, or carrying a DIMM.
◦ Never force a DIMM into a shelf, and use gentle, firm pressure to completely engage the
latch.
◦ Always use approved packaging when shipping DIMMs.
• Avoid magnetic fields:
◦ Keep DIMMs away from magnetic devices.
This section describes how to replace a DIMM in the following controller shelves:
• EF300 controller shelf
• EF600 controller shelf
Replace DIMMs
To replace your DIMM you must verify the cache size of your controller, place the controller
offline, remove the controller, remove the DIMMs, and install the new DIMMs in your controller.
Then you can bring your controller back online and verify the storage array is working properly.
Determining if you need to replace DIMMs in a controller
You must verify the cache size of your controller before replacing the DIMMS.
Steps
1. Access the Storage-Array-Profile for the controller.
a. Select Support Page > Support Resources > Storage Array Profile.
2. Select the Data Cache Module tab and locate the Data Cache Module field.
Maintaining EF300 and EF600 Hardware
31
DIMMs
To Next Page
Loading...
Need help?
General
