ECS: Gen 2 nodes Power Supply redundancy settings
Summary: Gen 2 nodes Power Supply redundancy settings.
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Not all product versions are identified in this article.
Instructions
Dell EMC supports two setting for the Intel Gen 2 chassis power redundancy settings;
- Cold redundancy (default)
- Balanced redundancy
No RPQ is required to implement the below config change.
Cold redundancy can be disabled based on demand by following the procedure below:
- Identify node hardware type, must be Gen 2
doit dmidecode -s system-product-name 192.1XX.2XX.1: S2600KP 192.1XX.2XX.2: S2600KP 192.1XX.2XX.3: S2600KP 192.1XX.2XX.4: S2600KP
- Check the current Cold Redundancy Setting: (every 4 nodes will be the same, the setting is for a single chassis which host 4 nodes);
domulti 'ipmitool raw 0x30 0x2e 0x01' 192.1XX.2XX.1 ======================================== 01 01 192.1XX.2XX.2 ======================================== 01 01 192.1XX.2XX.3 ======================================== 01 01 192.1XX.2XX.4 ======================================== 01 01 01 01 means enabled
- Check the current Power Supply input, with cold redundancy power is flowing through one PS only. Notice 510 Watts all flowing through PS1 and 0 flowing through PS2. Verify the same thing on all nodes.
domulti 'ipmitool sdr elist | grep PS' 192.168.219.1 ======================================== HSBP PSOC Temp | 29h | ok | 15.1 | 40 degrees C PS1 Status | 50h | ok | 10.1 | Presence detected PS2 Status | 51h | ok | 10.2 | Presence detected PS1 Power In | 54h | ok | 10.1 | 510 Watts PS2 Power In | 55h | ok | 10.2 | 10 Watts PS1 Curr Out % | 58h | ok | 10.1 | 29 percent PS2 Curr Out % | 59h | ok | 10.2 | 0 percent PS1 Temperature | 5Ch | ok | 10.1 | 44 degrees C PS2 Temperature | 5Dh | ok | 10.2 | 42 degrees C PS1 Fan1 Fail | A0h | ok | 10.1 | PS1 Fan2 Fail | A1h | ok | 10.2 | PS2 Fan1 Fail | A4h | ok | 10.1 | PS2 Fan2 Fail | A5h | ok | 10.2 | - Disable cold redundancy using impitool (applies to 3.2.2 ECS-OS or later, for older version see Notes below.):
#sudo ipmitool raw 0x30 0x2d 0x01 0x00
- Confirm cold redundancy is off. output 01 00 means it is off.
domulti 'ipmitool raw 0x30 0x2e 0x01' 192.1XX.2XX.1 ======================================== 01 00 192.1XX.2XX.2 ======================================== 01 00 192.1XX.2XX.3 ======================================== 01 00 192.1XX.2XX.4 ======================================== 01 00 01 00 means Cold Redundancy is off
- Wait 60 seconds and Confirm both Power supplies are consuming power evenly, notice 270 Watts are flowing through each PS. Verify the same on all nodes in the chassis.
#domulti 'ipmitool sdr elist | grep PS 192.168.219.1 ======================================== HSBP PSOC Temp | 29h | ok | 15.1 | 40 degrees C PS1 Status | 50h | ok | 10.1 | Presence detected PS2 Status | 51h | ok | 10.2 | Presence detected PS1 Power In | 54h | ok | 10.1 | 270 Watts PS2 Power In | 55h | ok | 10.2 | 270 Watts PS1 Curr Out % | 58h | ok | 10.1 | 14 percent PS2 Curr Out % | 59h | ok | 10.2 | 14 percent PS1 Temperature | 5Ch | ok | 10.1 | 44 degrees C PS2 Temperature | 5Dh | ok | 10.2 | 43 degrees C PS1 Fan1 Fail | A0h | ok | 10.1 | PS1 Fan2 Fail | A1h | ok | 10.2 | PS2 Fan1 Fail | A4h | ok | 10.1 | PS2 Fan2 Fail | A5h | ok | 10.2 |
- Procedure is complete at this step
Additional Information
For version older than 3.2.2 , engage Dell EMC Support team to use a special procedure to implement the change.
To revert the above changes, disable Cold redundancy using the below commands:
#sudo ipmitool raw 0x30 0x2d 0x01 0x01 #domulti 'ipmitool raw 0x30 0x2e 0x01' 192.1XX.2XX.1 ======================================== 01 01 192.1XX.2XX.2 ======================================== 01 01 192.1XX.2XX.3 ======================================== 01 01 192.1XX.2XX.4 ======================================== 01 01 01 01 mean CR is enabled
Affected Products
ECS Appliance Hardware Gen2 U-SeriesProducts
ECS Appliance Hardware Gen2 U-Series, Elastic Cloud StorageArticle Properties
Article Number: 000023510
Article Type: How To
Last Modified: 02 Mar 2023
Version: 3
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