NetApp E Series User manual

Controllers
E-Series
NetApp
December 14, 2021
This PDF was generated from https://docs.netapp.com/us-en/e-series/maintenance-ef600/controllers-
overview-supertask-concept.html on December 14, 2021. Always check docs.netapp.com for the latest.

Table of Contents
Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê1
Requirements for EF300 or EF600 controller replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê1
Replace EF300 or EF600 controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê1

Controllers
Requirements for EF300 or EF600 controller replacement
Before you replace an EF300 or EF600 controller, review the requirements and
considerations.
A controller consists of a board, firmware, and software. It controls the drives and implements the SANtricity
System Manager functions.
Controller replacement requirements
Before you replace a controller, you must have:
•A replacement controller canister with the same part number as the controller canister you are replacing.
•An ESD wristband, or you have taken other antistatic precautions.
•Labels to identify each cable that is connected to the controller canister.
•A #1 Phillips screwdriver.
•A management station with a browser that can access SANtricity System Manager for the controller. (To
open the System Manager interface, point the browser to the controller’s domain name or IP address.)
Replacement while powered on
You can replace a controller canister while your storage array is powered on and performing host I/O
operations, if the following conditions are true:
•The second controller canister in the shelf has Optimal status.
•The OK to remove field in the Details area of the Recovery Guru in SANtricity System Manager displays
Yes, indicating that it is safe to remove this component.
Replace EF300 or EF600 controller
You can replace a single controller in your EF300 or EF600 controller shelf.
About this task
When you replace a failed controller canister, you must remove the battery, power supply, DIMMs, fans, and
host interface card (HIC) from the original controller canister, and then install them in the replacement
controller canister.
Before you begin
•Review Requirements for EF300 or EF600 controller replacement.
•Determine if you have a failed controller canister in one of two ways:
◦The Recovery Guru in SANtricity System Manager directs you to replace the controller canister.
◦The amber Attention LED on the controller canister is on, indicating that the controller has a fault.
What you’ll need
•A replacement controller canister with the same part number as the controller canister you are replacing.
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•An ESD wristband, or you have taken other antistatic precautions.
•A flat, static free work area.
•A #1 Phillips screwdriver
•Labels to identify each cable that is connected to the controller canister.
•A management station with a browser that can access SANtricity System Manager for the controller. (To
open the System Manager interface, point the browser to the controller’s domain name or IP address.)
Step 1: Prepare to replace controller
Prepare to replace a failed controller canister by verifying that the replacement controller canister has the
correct FRU part number, backing up the configuration, and collecting support data.
Steps
1. Unpack the new controller canister, and set it on a flat, static-free surface.
Save the packing materials to use when shipping the failed controller canister.
2. Locate the MAC address and FRU part number labels on the back of the controller canister.
3. From SANtricity System Manager, locate the replacement part number for the controller canister you are
replacing.
When a controller has a fault and needs to be replaced, the replacement part number is displayed in the
Details area of the Recovery Guru. If you need to find this number manually, follow these steps:
a. Select Hardware.
b. Locate the controller shelf, which is marked with the controller icon .
c. Click the controller icon.
d. Select the controller, and click Next.
e. On the Base tab, make a note of the Replacement Part Number for the controller.
4. Confirm that the replacement part number for the failed controller is the same as the FRU part number for
the replacement controller.
Possible loss of data access — If the two-part numbers are not the same, do not attempt
this procedure. In addition, if the failed controller canister includes a host interface card
(HIC), you must install that HIC into the new controller canister. The presence of
mismatched controllers or HICs causes the new controller to lock down when you bring it
online.
5. Back up the storage array’s configuration database using SANtricity System Manager.
If a problem occurs when you remove a controller, you can use the saved file to restore your configuration.
The system will save the current state of the RAID configuration database, which includes all data for
volume groups and disk pools on the controller.
◦From System Manager:
a. Select Support ›Support Center ›Diagnostics.
b. Select Collect Configuration Data.
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c. Click Collect.
The file is saved in the Downloads folder for your browser with the name, configurationData-
<arrayName>-<dateTime>.7z.
6. If the controller is not already offline, take it offline now using SANtricity System Manager.
a. Select Hardware.
b. If the graphic shows the drives, select Show back of shelf to show the controllers.
c. Select the controller that you want to place offline.
d. From the context menu, select Place offline, and confirm that you want to perform the operation.
If you are accessing SANtricity System Manager using the controller you are attempting to
take offline, a SANtricity System Manager Unavailable message is displayed. Select
Connect to an alternate network connection to automatically access SANtricity System
Manager using the other controller.
7. Wait for SANtricity System Manager to update the controller’s status to offline.
Do not begin any other operations until after the status has been updated.
8. Select Recheck from the Recovery Guru, and confirm that the OK to remove field in the Details area
displays Yes, indicating that it is safe to remove this component.
Step 2: Remove failed controller
Remove a controller canister to replace the failed canister with a new one.
This is a multi-step procedure that requires you to remove the following components: battery, host interface
card, power supply, DIMMs, and fans.
Step 2a: Remove controller canister
Remove the failed controller canister so you can replace it with a new one.
Steps
1. Put on an ESD wristband or take other antistatic precautions.
2. Label each cable that is attached to the controller canister.
3. Disconnect all the cables from the controller canister.
To prevent degraded performance, do not twist, fold, pinch, or step on the cables.
4. If the controller canister has a HIC that uses SFP+ transceivers, remove the SFPs.
Because you must remove the HIC from the failed controller canister, you must remove any SFPs from the
HIC ports. When you reconnect the cables, you can move those SFPs to the new controller canister.
5. Confirm that the Cache Active LED on the back of the controller is off.
6. Squeeze the handles on either side of the controller, and pull back until it releases from the shelf.
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7. Using two hands and the handles, slide the controller canister out of the shelf. When the front of the
controller is free of the enclosure, use two hands to pull it out completely.
Always use two hands to support the weight of a controller canister.
8. Place the controller canister on a flat, static-free surface.
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Step 2b: Remove battery
Remove the battery from the failed controller canister so you can install it in the new controller canister.
Steps
1. Remove the controller canister’s cover by unscrewing the single thumbscrew and lifting the lid open.
2. Locate the 'press' tab on the side of the controller.
3. Unlatch the battery by pressing the tab and squeezing the battery casing.
4. Gently squeeze the connector housing the battery wiring. Pull up, disconnecting the battery from the
board.
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5. Lift the battery out of the controller and place on a flat, static-free
surface.
Step 2c: Remove the HIC
If the controller canister includes a HIC, you must remove the HIC from the original controller canister.
Otherwise, you can skip this step.
Steps
1. Using a Phillips screwdriver, remove the two screws that attach the HIC faceplate to the controller canister.
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The image above is an example, the appearance of your HIC may differ.
2. Remove the HIC faceplate.
3. Using your fingers or a Phillips screwdriver, loosen the single thumbscrew that secure the HIC to the
controller card.
The HIC comes with three screw locations on the top but is secured with only one.
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4. Carefully detach the HIC from the controller card by lifting the card up and out of the controller.
Be careful not to scratch or bump the components on the bottom of the HIC or on the top of
the controller card.
5. Place the HIC on a flat, static-free surface.
Step 2d: Remove power supply
Remove the power supply so you can install it in the new controller.
Steps
1. Disconnect the power cables:
a. Open the power cord retainer, and then unplug the power cord from the power supply.
b. Unplug the power cord from the power source.
2. Locate the tab to the right of the power supply and press it towards the power supply unit.
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