ECS: xDoctor: RAP163: Critical System Memory Event

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ERROR - Critical System Memory Event
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Node      = Nodes
Extra     = {'Nodes': {'169.254.1.1': ['Memory #0x02 - Uncorrectable ECC (UnCorrectable ECC |  DIMMB1) (06/10/2023 08:45:16)', 'Memory #0x03 - Uncorrectable ECC (UnCorrectable ECC |  DIMMB1) (06/10/2023 08:45:16)', 'Memory Mmry ECC Sensor - Correctable ECC (11/26/2015 12:38:51)']}}
RAP       = RAP163
Solution  = KB 215723
Timestamp = 2023-07-10_170539
PSNT      = CKMXXXXXXXXXXX @ 4.8-92.0

1. Check SEL logs to confirm that there are uncorrectable errors on the node.

Command: (Remote command)

# sudo ipmitool -H <iDrac IP> -U root -P passwd -I lanplus sel elist

Command: (Local Node)

# sudo ipmitool sel elist

Example:

admin@node1:~> sudo ipmitool -H 192.XXX.2XX.107 -U root -P passwd -I lanplus sel elist
   1 | 12/04/2021 | 07:29:19 | Event Logging Disabled SEL | Log area reset/cleared | Asserted
   2 | 12/29/2021 | 23:00:29 | Memory Mem ECC Warning | Transition to Critical from less severe | Asserted
   3 | 01/26/2022 | 11:44:08 | Memory Mem ECC Warning | Transition to Critical from less severe | Asserted
   4 | 08/03/2022 | 18:31:45 | Power Supply PS Redundancy | Redundancy Lost | Asserted
   5 | 08/03/2022 | 18:31:48 | Power Supply Status | Power Supply AC lost | Asserted
   6 | 08/03/2022 | 18:43:14 | Power Supply Status | Power Supply AC lost | Deasserted
   7 | 08/03/2022 | 18:43:22 | Power Supply PS Redundancy | Fully Redundant | Asserted
   8 | 08/03/2022 | 18:51:27 | Power Supply PS Redundancy | Redundancy Lost | Asserted
   9 | 08/03/2022 | 18:51:27 | Power Supply Status | Power Supply AC lost | Asserted
   a | 08/03/2022 | 19:02:03 | Power Supply Status | Power Supply AC lost | Deasserted
   b | 08/03/2022 | 19:02:14 | Power Supply PS Redundancy | Fully Redundant | Asserted
   c | 01/19/2023 | 05:38:27 | Memory Mem ECC Warning | Transition to Critical from less severe | Asserted
   d | 02/06/2023 | 02:10:25 | Memory Mem ECC Warning | Transition to Critical from less severe | Asserted
   e | 03/02/2023 | 17:12:15 | Memory Mem ECC Warning | Transition to Critical from less severe | Asserted
   f | 05/09/2023 | 15:56:41 | Memory #0x02 | Uncorrectable ECC (UnCorrectable ECC |  DIMMA1) | Asserted
  10 | 05/09/2023 | 17:16:16 | Memory Mem ECC Warning | Transition to Critical from less severe | Asserted
  11 | 05/09/2023 | 20:57:41 | Memory #0x02 | Uncorrectable ECC (UnCorrectable ECC |  DIMMA1) | Asserted
  12 | 05/09/2023 | 20:59:25 | Unknown #0x2e |  | Asserted
  13 | 05/09/2023 | 20:59:25 | Memory #0x02 | Uncorrectable ECC (UnCorrectable ECC |  DIMMB1) | Asserted
  14 | 05/11/2023 | 05:43:34 | Memory Mem ECC Warning | Transition to Critical from less severe | Asserted
  15 | 06/10/2023 | 08:43:26 | Memory #0x02 | Uncorrectable ECC (UnCorrectable ECC |  DIMMA1) | Asserted
  16 | 06/10/2023 | 08:45:16 | Unknown #0x2e |  | Asserted
  17 | 06/10/2023 | 08:45:16 | Memory #0x02 | Uncorrectable ECC (UnCorrectable ECC |  DIMMA1) | Asserted
  18 | 06/10/2023 | 08:45:16 | Memory #0x02 | Uncorrectable ECC (UnCorrectable ECC |  DIMMB1) | Asserted

2. Confirm if there are DIMMs missing due to the event.

Command:

# sudo dmidecode -t memory | grep "Locator\|Size" | grep -v "Cache\|Volatile\|Cache\|Logical\|Bank"

Example:

admin@node1:~> sudo dmidecode -t memory | grep "Locator\|Size" | grep -v "Cache\|Volatile\|Cache\|Logical\|Bank"
        Size: No Module Installed <-- DIMM is missing
        Locator: A1
        Size: 16384 MB
        Locator: A2
        Size: No Module Installed
        Locator: A3
        Size: No Module Installed
        Locator: A4
        Size: No Module Installed
        Locator: A5
        Size: No Module Installed
        Locator: A6
        Size: No Module Installed
        Locator: A7
        Size: No Module Installed
        Locator: A8
        Size: 16384 MB
        Locator: B1
        Size: 16384 MB
        Locator: B2
        Size: No Module Installed
        Locator: B3
        Size: No Module Installed
        Locator: B4

Example - Clearing the System Event Log (SEL):

Query the iDRAC to get the system event log and confirm that the error is present in the output. 

Remember, before clearing the SEL check for any other error that needs to be addressed. Also, save the log to /var/log/hardware as described in KB 49569.

In this example 192.168.219.101 corresponds to the iDRAC IP of node 1:

admin@provo~> ipmitool -I lanplus -H 192.168.219.101 -U root -P passwd sel list
   1 | 01/06/2022 | 04:34:58 | Event Logging Disabled #0x72 | Log area reset/cleared | Asserted
   2 | 02/03/2022 | 17:15:21 | Physical Security #0x73 | General Chassis intrusion () | Asserted
   3 | 02/03/2022 | 17:15:28 | Physical Security #0x73 | General Chassis intrusion () | Deasserted
   4 | 08/18/2023 | 01:44:01 | Memory #0x02 | Uncorrectable ECC (UnCorrectable ECC |  DIMMA1) | Asserted

  Clear the SEL: 

admin@provo:~> ipmitool -I lanplus -H 192.168.219.101 -U root -P passwd sel clear
Clearing SEL.  Please allow a few seconds to erase.

Validate the list was cleared:

admin@provo~> ipmitool -I lanplus -H 192.168.219.101 -U root -P passwd sel list
   1 | 08/30/2023 | 12:56:55 | Event Logging Disabled #0x72 | Log area reset/cleared | Asserted