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...y_and_authentication/Change_EX_Liquid-Cooled_Cabinet_Global_Default_Password.md
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# Change Cray EX Liquid-Cooled Cabinet Global Default Password | ||
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This procedure changes the global default `root` credential on HPE Cray EX liquid-cooled cabinet embedded controllers (BMCs). The chassis management module (CMM) controller (cC), node controller (nC), and Slingshot switch controller (sC) are generically referred to as "BMCs" in these procedures. | ||
This procedure changes the global default `root` credential on HPE Cray EX liquid-cooled cabinet embedded controllers (BMCs). | ||
The chassis management module (CMM) controller (cC), node controller (nC), and Slingshot switch controller (sC) are generically referred to as "BMCs" in these procedures. | ||
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## Prerequisites | ||
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- The Cray command line interface (CLI) tool is initialized and configured on the system. See [Configure the Cray Command Line Interface (`cray` CLI)](../configure_cray_cli.md) for more information. | ||
- Review procedures in [Manage System Passwords](Manage_System_Passwords.md). | ||
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### Procedure | ||
## Procedure | ||
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1. If necessary, shut down compute nodes in each cabinet. Refer to [Shut Down and Power Off Compute and User Access Nodes](../power_management/Shut_Down_and_Power_Off_Compute_and_User_Access_Nodes.md). | ||
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```screen | ||
ncn-m001# sat bootsys shutdown --stage bos-operations --bos-templates COS_SESSION_TEMPLATE | ||
ncn-mw# sat bootsys shutdown --stage bos-operations --bos-templates COS_SESSION_TEMPLATE | ||
``` | ||
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2. Disable the `hms-discovery` Kubernetes cron job. | ||
1. Disable the `hms-discovery` Kubernetes cron job. | ||
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```screen | ||
ncn-m001# kubectl -n services patch cronjobs hms-discovery -p '{"spec" : {"suspend" : true }}' | ||
ncn-mw# kubectl -n services patch cronjobs hms-discovery -p '{"spec" : {"suspend" : true }}' | ||
``` | ||
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3. Power off all compute slots in the cabinets the passwords are to be changed on. | ||
1. Power off all compute slots in the cabinets the passwords are to be changed on. | ||
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**Note**: If a chassis is not fully populated, specify each slot individually. | ||
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Example showing fully populated cabinets 1000-1003: | ||
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```screen | ||
ncn-m001# cray capmc xname_off create --xnames x[1000-1003]c[0-7]s[0-7] --format json | ||
ncn-mw# cray capmc xname_off create --xnames x[1000-1003]c[0-7]s[0-7] --format json | ||
``` | ||
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Check the power status: | ||
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```screen | ||
ncn-m001# cray capmc get_xname_status create --xnames x[1000-1003]c[0-7]s[0-7] --format json | ||
ncn-mw# cray capmc get_xname_status create --xnames x[1000-1003]c[0-7]s[0-7] --format json | ||
``` | ||
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Continue when all compute slots are `Off`. | ||
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4. Perform the procedures in [Provisioning a Liquid-Cooled EX Cabinet CEC with Default Credentials](Provisioning_a_Liquid-Cooled_EX_Cabinet_CEC_with_Default_Credentials.md). | ||
1. Perform the procedures in [Provisioning a Liquid-Cooled EX Cabinet CEC with Default Credentials](Provisioning_a_Liquid-Cooled_EX_Cabinet_CEC_with_Default_Credentials.md). | ||
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5. Perform the procedures in [Updating the Liquid-Cooled EX Cabinet Default Credentials after a CEC Password Change](Updating_the_Liquid-Cooled_EX_Cabinet_Default_Credentials_after_a_CEC_Password_Change.md). | ||
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6. To update Slingshot switch BMCs, refer to "Change Rosetta Login and Redfish API Credentials" in the *Slingshot Operations Guide (> 1.6.0)*. | ||
1. Perform the procedures in [Updating the Liquid-Cooled EX Cabinet Default Credentials after a CEC Password Change](Updating_the_Liquid-Cooled_EX_Cabinet_Default_Credentials_after_a_CEC_Password_Change.md). | ||
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1. To update Slingshot switch BMCs, refer to "Change Rosetta Login and Redfish API Credentials" in the *Slingshot Operations Guide (> 1.6.0)*. |
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