Lenovo ThinkSystem DM240N Manuale utente

Changing a shelf ID for a

DM240N drive shelf

Changing a DM240N drive shelf ID

You can change a shelf ID in a system when ONT P is not yet running or when adding a shelf prior to it being

cabled to the system.

Before you begin

• If ONT P is up and running (controller modules are available to serve data), you must have verified that all

drives in the shelf are unowned, spares, or part of offlined aggregate(s).You can verify the state of the

drives by using the storage disk show -shelf shelf_number command. Output in the Container Type

column should display spare or broken if it is a failed drive. dditionally, the Container Name and Owner

columns should have a dash.

• You need a paper clip with one side straightened or a narrow tipped ballpoint pen.You use the paper clip

or ballpoint pen to access the shelf ID button through the small hole, to the right of the LEDs, in the

Operator Display Panel (ODP).

About this task

• valid shelf ID is 00 through 99.

• Shelf IDs must be unique within an H pair.

• You must power cycle a shelf (unplug both power cords, wait the appropriate amount of time, and then

plug them back in) in order for the shelf ID to take effect.The amount of time you wait before plugging the

power cords back in depends on the state of ONT P, as described later in this procedure.

Note: DM240N shelves do not have power switches on the power supplies.

Step 1. Power on the shelf, if it's not already on.

You connect the power cords first to the shelf, securing them in place with the power cord retainer,

and then connect the power cords to different power sources for resiliency.

Step 2. Remove the left end cap to locate the small hole to the right of the LEDs.

Step 3. Change the first number of the shelf ID:

a. Insert the paper clip or ballpoint pen into the small hole.

b. Press and hold the button until the first number on the digital display blinks, and then release

the button.

It can take up to 15 seconds for the number to blink. This activates the shelf ID programming

mode.

Note: If the ID takes longer than 15 seconds to blink, press and hold the button again, making

sure to press it in all the way.

c. Press and release the button to advance the number until you reach the desired number from 0

to 9.

Each press and release duration can be as short as one second.

The first number continues to blink.

Step 4. Change the second number of the shelf ID:

a. Press and hold the button until the second number on the digital display blinks.

It can take up to three seconds for the number to blink.

The first number on the digital display stops blinking.

b. Press and release the button to advance the number until you reach the desired number from 0

to 9.

The second number continues to blink.

Step 5. Lock in the desired number and exit the programming mode by pressing and holding the button

until the second number stops blinking.

It can take up to three seconds for the number to stop blinking.

Both numbers on the digital display start blinking and the amber LED on the ODP illuminates after

about five seconds, alerting you that the pending shelf ID has not yet taken effect.

Step 6. Power-cycle the shelf to make the shelf ID take effect.

You must unplug the power cord from both power supplies on the shelf, wait the appropriate

amount of time, and then plug them back into the shelf power supplies to complete the power

cycle.

power supply is powered on as soon as the power cord is plugged in. Its bicolored LED should

illuminate green.

• If ONT P is not yet running or you are hot-adding a shelf (that has not yet been cabled to the

system), wait at least 10 seconds.

• If ONT P is running (controllers are available to serve data) while you are changing an existing

shelf ID, and all drives in the shelf are unowned, spares, or part of offlined aggregate(s), wait at

least 70 seconds. This time allows ONT P to properly delete the old shelf address and update

the copy of the new shelf address.

Step 7. Replace the left end cap.

Contacting upport

You can contact Support to obtain help for your issue.

You can receive hardware service through a Lenovo uthorized Service Provider. To locate a service

provider authorized by Lenovo to provide warranty service, go to https://datacentersupport.lenovo.com/

serviceprovider and use filter searching for different countries. For Lenovo support telephone numbers, see

https://datacentersupport.lenovo.com/supportphonelist for your region support details.

Notices

Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult

your local Lenovo representative for information on the products and services currently available in your

area.

ny reference to a Lenovo product, program, or service is not intended to state or imply that only that

Lenovo product, program, or service may be used. ny functionally equivalent product, program, or service

that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's

responsibility to evaluate and verify the operation of any other product, program, or service.

Lenovo may have patents or pending patent applications covering subject matter described in this

document. The furnishing of this document is not an offer and does not provide a license under any patents

or patent applications. You can send inquiries in writing to the following:

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8001 Develo ment Drive

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U.S.A.

Attention: Lenovo Director of Licensing

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shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or

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ny performance data contained herein was determined in a controlled environment. Therefore, the result

obtained in other operating environments may vary significantly. Some measurements may have been made

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generally available systems. Furthermore, some measurements may have been estimated through

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