Lenovo ThinkSystem DM240N User manual

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.
11

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:
Lenovo (United States), Inc.
8001 Develo ment Drive
Morrisville, NC 27560
U.S.A.
22

Attention: Lenovo Director of Licensing
LENOVO PROVIDES THIS PUBLIC TION “ S IS” WITHOUT W RR NTY OF NY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED W RR NTIES OF NON-INFRINGEMENT,
MERCH NT BILITY OR FITNESS FOR P RTICUL R PURPOSE. Some jurisdictions do not allow
disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to
you.
This information could include technical inaccuracies or typographical errors. Changes are periodically made
to the information herein; these changes will be incorporated in new editions of the publication. Lenovo may
make improvements and/or changes in the product(s) and/or the program(s) described in this publication at
any time without notice.
The products described in this document are not intended for use in implantation or other life support
applications where malfunction may result in injury or death to persons. The information contained in this
document does not affect or change Lenovo product specifications or warranties. Nothing in this document
shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or
third parties. ll information contained in this document was obtained in specific environments and is
presented as an illustration. The result obtained in other operating environments may vary.
Lenovo may use or distribute any of the information you supply in any way it believes appropriate without
incurring any obligation to you.
ny references in this publication to non-Lenovo Web sites are provided for convenience only and do not in
any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the
materials for this Lenovo product, and use of those Web sites is at your own risk.
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
on development-level systems and there is no guarantee that these measurements will be the same on
generally available systems. Furthermore, some measurements may have been estimated through
extrapolation. ctual results may vary. Users of this document should verify the applicable data for their
specific environment.
Trademarks
LENOVO, LENOVO logo, and THINKSYSTEM are trademarks of Lenovo. ll other trademarks are the
property of their respective owners. © 2020 Lenovo.
33