I have exactly the same issue, MD3000i having both controller in boot loop after power failure. Can see similar logs by connecting to the consoles of both controller. If I am able to arrange the controller from used market, my questions are;

what would be the procedure of replacement?

Will the data be intact?

Do i need to configure IPs etc after replacing the controller it will somehow get from somewhere?

Highly appreciate your help.

Below are the console logs for your reference from left controller.

-=<###>=-
Attaching interface lo0... done

Adding 9768 symbols for standalone.
Error
04/01/21-17:20:13 (GMT) (tRootTask): NOTE: I2C transaction returned 0x0423fe00

WARNING: Reset by alternate controller

Current date: 04/01/21 time: 06:51:19

Send for Service Interface or baud rate change
04/01/21-17:20:30 (GMT) (tRAID): NOTE: SOD Sequence is Normal, 0
04/01/21-17:20:30 (GMT) (tRAID): NOTE: SOD: removed SAS host from index 0
04/01/21-17:20:30 (GMT) (tRAID): NOTE: In iscsiIOQLIscsiInitDq. iscsiIoFstrBase = 0x0
04/01/21-17:20:30 (GMT) (tRAID): NOTE: Turning on tray summary fault LED
04/01/21-17:20:32 (GMT) (tRAID): NOTE: SYMBOL: SYMbolAPI registered.
esmc0: LinkUp event
04/01/21-17:20:35 (GMT) (tRAID): NOTE: Initiating Drive channel: ioc:0 bringup
04/01/21-17:20:38 (GMT) (tRAID): NOTE: IOC Firmware Version: 00-24-63-00
04/01/21-17:20:39 (GMT) (tNetCfgInit): NOTE: Network Ready
04/01/21-17:20:47 (GMT) (tSasEvtWkr): NOTE: sasIocPhyUp: chan:0 phy:0 prevNumActivePhys:2 numActivePhys:2
04/01/21-17:20:47 (GMT) (tSasEvtWkr): NOTE: sasIocPhyUp: chan:0 phy:1 prevNumActivePhys:2 numActivePhys:2
04/01/21-17:20:48 (GMT) (tSasEvtWkr): NOTE: sasIocPhyUp: chan:1 phy:2 prevNumActivePhys:2 numActivePhys:2
04/01/21-17:20:48 (GMT) (tSasEvtWkr): NOTE: sasIocPhyUp: chan:1 phy:3 prevNumActivePhys:2 numActivePhys:2
04/01/21-17:20:48 (GMT) (tSasCfg016): NOTE: Alt Controller path up - chan:0 phy:18 itn:1
04/01/21-17:20:48 (GMT) (tSasCfg021): NOTE: Alt Controller path up - chan:1 phy:16 itn:2
04/01/21-17:20:57 (GMT) (tRAID): NOTE: IonMgr: Drive Interface Enabled
04/01/21-17:20:58 (GMT) (tRAID): NOTE: SOD: Instantiation Phase Complete
04/01/21-17:20:58 (GMT) (tRAID): NOTE: Inter-Controller Communication Channels Opened
04/01/21-17:20:58 (GMT) (tSasDiscCom): NOTE: SAS Discovery complete task spawned
04/01/21-17:20:58 (GMT) (IOSched): NOTE: New Initiator: 1 - channel: 1,devHandle: x2b, SAS Address: 5a4badb44e398500
04/01/21-17:20:58 (GMT) (tRAID): NOTE: LockMgr Role is Slave
04/01/21-17:20:58 (GMT) (IOSched): NOTE: New Initiator: 2 - channel: 0,devHandle: x1a, SAS Address: 5a4badb44e398501
04/01/21-17:20:58 (GMT) (sasCheckExpanderSet): NOTE: Expander Firmware Version: 0116-e05c
04/01/21-17:20:58 (GMT) (sasCheckExpanderSet): NOTE: Expander SAS address: Hi = x5842b2b4 Low = x51accd10
04/01/21-17:20:59 (GMT) (tRAID): NOTE: spmEarlyData: Using cached data
04/01/21-17:21:03 (GMT) (tSasDiscCom): WARN: SAS: Initial Discovery Complete Time: 30 seconds
04/01/21-17:21:03 (GMT) (tRAID): NOTE: WWN baseName 0004842b-2b51accd (valid==>SigMatch)
04/01/21-17:21:03 (GMT) (tRAID): NOTE: ionEnableHostInterfaces is waiting for a channel to become ready
04/01/21-17:21:03 (GMT) (tRAID): NOTE: ionEnableHostInterfaces waited 800ms for a channel to become ready
04/01/21-17:21:03 (GMT) (tRAID): NOTE: IonMgr: Host Interface Enabled
04/01/21-17:21:03 (GMT) (tRAID): NOTE: SOD: Pre-Initialization Phase Complete
04/01/21-17:21:26 (GMT) (iacTask7): NOTE: ACS: Acs Needed on Alt: No, StateCode: 0, ReasonCode = 2
04/01/21-17:21:26 (GMT) (tRAID): NOTE: ACS: autoCodeSync(): Process start. Comm Mode: 0, Status: 1
04/01/21-17:21:26 (GMT) (tRAID): NOTE: SOD: Code Synchronization Initialization Phase Complete
04/01/21-17:21:29 (GMT) (NvpsPersistentSyncM): NOTE: NVSRAM Persistent Storage updated successfully
04/01/21-17:21:29 (GMT) (tRAID): NOTE: USM Mgr initialization complete with 0 records.
04/01/21-17:21:30 (GMT) (tRAID): NOTE: EDR - recieved 1 small records
04/01/21-17:21:30 (GMT) (tRAID): NOTE: EDR - recieved 0 large records
04/01/21-17:21:32 (GMT) (tRAID): NOTE: Acquire 0.020 secs
04/01/21-17:21:35 (GMT) (tRAID): NOTE: QLStartFw: Downloading Driver's FW image 03.00.01.47 from 032e4340 4c0c8 bytes , result 0
04/01/21-17:22:03 (GMT) (tRAID): WARN: QLMailboxCommand: Cmd = 0069, completion timeout
04/01/21-17:22:03 (GMT) (tRAID): WARN: QLMailboxCommand: command completion timeout, cmd = 0x69
04/01/21-17:22:03 (GMT) (tRAID): NOTE: Qlogic coredump file written to '3S91VL1:/tmp/QLogic_Coredump_port_0_3S91VL1',rc 204E50, expected 204E50
04/01/21-17:22:03 (GMT) (tRAID): WARN: Qlogic coredump file write failed.fclose returned -1

04/01/21-17:22:03 (GMT) (tRAID): NOTE: QLProcessSystemError: Restart RISC
04/01/21-17:22:03 (GMT) (tRAID): ERROR: QLGetFwState: MBOX_CMD_GET_FW_STATE failed. Stat f000
04/01/21-17:22:03 (GMT) (tRAID): NOTE: QLRebootTimer: Status after Get FW State 4543
04/01/21-17:22:03 (GMT) (tRAID): NOTE: QLRebootTimer: QLGetFwState failed
04/01/21-17:22:05 (GMT) (tRAID): NOTE: QLStartFw: Downloading Driver's FW image 03.00.01.47 from 032e4340 4c0c8 bytes , result 0
04/01/21-17:22:07 (GMT) (tHckReset): WARN: Alt Ctl Reboot:
Reboot CompID: 0x408
Reboot reason: 0x6
Reboot reason extra: 0x1
04/01/21-17:22:07 (GMT) (tHckReset): NOTE: holding alt ctl in reset
04/01/21-17:22:07 (GMT) (tHckReset): NOTE: releasing alt ctl from reset
04/01/21-17:22:07 (GMT) (tHckReset): NOTE: LockMgr Role is Master
04/01/21-17:22:07 (GMT) (tHckReset): NOTE: sas: Peering Disabled (Health Check) Event: -4
04/01/21-17:22:07 (GMT) (IOSched): NOTE: Disconnect Initiator 1 - channel: 1, devHandle: x2b, I/O: 0, SAS Address: 5a4badb44e398500
04/01/21-17:22:07 (GMT) (IOSched): WARN: sasRemoveInitiator - No I/O's - send EventAck: event: 00000018, eventContext: 0002002b
04/01/21-17:22:07 (GMT) (sasTgtSendEventAck): WARN: sasTgtSendEventAckTask - SendEventAck for host: 1
04/01/21-17:22:07 (GMT) (IOSched): NOTE: Disconnect Initiator 2 - channel: 0, devHandle: x1a, I/O: 0, SAS Address: 5a4badb44e398501
04/01/21-17:22:07 (GMT) (IOSched): WARN: sasRemoveInitiator - No I/O's - send EventAck: event: 00000018, eventContext: 0002001a
04/01/21-17:22:07 (GMT) (sasTgtSendEventAck): WARN: sasTgtSendEventAckTask - SendEventAck for host: 2
04/01/21-17:22:07 (GMT) (tSasEvtWkr): NOTE: sasIocPhyDown: chan:1 phy:2 prevNumActivePhys:2 numActivePhys:1
04/01/21-17:22:07 (GMT) (tSasEvtWkr): NOTE: sasIocPhyDown: IOCPort: chan:1, OPTIMAL to DEGRADED
04/01/21-17:22:08 (GMT) (tSasEvtWkr): NOTE: sasIocPhyDown: chan:1 phy:3 prevNumActivePhys:1 numActivePhys:0
04/01/21-17:22:08 (GMT) (tSasEvtWkr): NOTE: sasIocPhyDown: IOCPort: chan:1, DEGRADED to FAILED
04/01/21-17:22:08 (GMT) (tSasEvtWkr): NOTE: sasRemoveExpanders: removing expanders on chan:1 level:0 and below
04/01/21-17:22:08 (GMT) (tSasEvtWkr): NOTE: sasLinkDown: expDevHandle:x9 - WidePort: #1 - Alt Controller, chan:0 encl:0, subExp:255, OPTIMAL to DEGRADED
04/01/21-17:22:08 (GMT) (tSasEvtWkr): NOTE: sasLinkDown: expDevHandle:x9 - WidePort: #1 - Alt Controller, chan:0 encl:0, subExp:255, DEGRADED to FAILED
04/01/21-17:22:24 (GMT) (tSasEvtWkr): NOTE: sasIocPhyUp: chan:1 phy:2 prevNumActivePhys:0 numActivePhys:1
04/01/21-17:22:24 (GMT) (tSasEvtWkr): NOTE: sasIocPhyUp: IOCPort: chan:1, FAILED to DEGRADED
04/01/21-17:22:24 (GMT) (tSasEvtWkr): WARN: sasIocPhyUp: Initializing Channel 1: Attached SAS Address: 5a4badb44e398510
04/01/21-17:22:26 (GMT) (tSasEvtWkr): NOTE: sasIocPhyUp: chan:1 phy:3 prevNumActivePhys:1 numActivePhys:2
04/01/21-17:22:26 (GMT) (tSasEvtWkr): NOTE: sasIocPhyUp: IOCPort: chan:1, DEGRADED to OPTIMAL
04/01/21-17:22:32 (GMT) (tRAID): WARN: QLMailboxCommand: Cmd = 0069, completion timeout
04/01/21-17:22:32 (GMT) (tRAID): WARN: QLMailboxCommand: command completion timeout, cmd = 0x69
04/01/21-17:22:33 (GMT) (tRAID): NOTE: Qlogic coredump file written to '3S91VL1:/tmp/QLogic_Coredump_port_0_3S91VL1',rc 204E50, expected 204E50
04/01/21-17:22:33 (GMT) (tRAID): WARN: Qlogic coredump file write failed.fclose returned -1

04/01/21-17:22:33 (GMT) (tRAID): NOTE: QLProcessSystemError: Restart RISC
04/01/21-17:22:33 (GMT) (tRAID): ERROR: QLGetFwState: MBOX_CMD_GET_FW_STATE failed. Stat f000
04/01/21-17:22:33 (GMT) (tRAID): NOTE: QLRebootTimer: Status after Get FW State 4543
04/01/21-17:22:33 (GMT) (tRAID): NOTE: QLRebootTimer: QLGetFwState failed
04/01/21-17:22:34 (GMT) (tRAID): NOTE: QLStartFw: Downloading Driver's FW image 03.00.01.47 from 032e4340 4c0c8 bytes , result 0
04/01/21-17:22:41 (GMT) (tSasEvtWkr): NOTE: sasLinkUp: expDevHandle:x9 - WidePort: #1 - Alt Controller, chan:0 encl:0, subExp:255, FAILED to DEGRADED
04/01/21-17:22:41 (GMT) (tSasEvtWkr): NOTE: sasLinkUp: expDevHandle:x9 - WidePort: #1 - Alt Controller, chan:0 encl:0, subExp:255, DEGRADED to OPTIMAL
04/01/21-17:22:41 (GMT) (tSasEvtWkr): NOTE: sasLinkUp: expDevHandle:xa - WidePort: #0 - Alt Controller, chan:1 encl:0, subExp:255, FAILED to DEGRADED
04/01/21-17:22:41 (GMT) (tSasEvtWkr): NOTE: sasLinkUp: expDevHandle:xa - WidePort: #0 - Alt Controller, chan:1 encl:0, subExp:255, DEGRADED to OPTIMAL
04/01/21-17:22:41 (GMT) (tSasCfg069): NOTE: Alt Controller path up - chan:0 phy:18 itn:1
04/01/21-17:22:41 (GMT) (tSasCfg070): NOTE: Alt Controller path up - chan:1 phy:16 itn:2
04/01/21-17:22:56 (GMT) (IOSched): NOTE: Connect Initiator: 1 - channel: 1,devHandle: x2c, SAS Address: 5a4badb44e398500
04/01/21-17:22:56 (GMT) (iconMgr4): WARN: sasNetworkManager::healthCheckEvent - Unknown Event (-3)
04/01/21-17:22:56 (GMT) (IOSched): NOTE: Connect Initiator: 2 - channel: 0,devHandle: x2b, SAS Address: 5a4badb44e398501
04/01/21-17:22:56 (GMT) (iconMgr4): NOTE: CheckInMonitor: Check-in failed (NoUnmarshalFuncException Error)
04/01/21-17:22:56 (GMT) (iacTask6): NOTE: fbm:altValidateSubModelID: Sub-Model IDs Validated
04/01/21-17:23:01 (GMT) (tRAID): WARN: QLMailboxCommand: Cmd = 0069, completion timeout
04/01/21-17:23:01 (GMT) (tRAID): WARN: QLMailboxCommand: command completion timeout, cmd = 0x69
04/01/21-17:23:02 (GMT) (tRAID): NOTE: Qlogic coredump file written to '3S91VL1:/tmp/QLogic_Coredump_port_0_3S91VL1',rc 204E50, expected 204E50
04/01/21-17:23:02 (GMT) (tRAID): WARN: Qlogic coredump file write failed.fclose returned -1

04/01/21-17:23:02 (GMT) (tRAID): NOTE: QLProcessSystemError: Restart RISC
04/01/21-17:23:02 (GMT) (tRAID): ERROR: QLGetFwState: MBOX_CMD_GET_FW_STATE failed. Stat f000
04/01/21-17:23:02 (GMT) (tRAID): NOTE: QLRebootTimer: Status after Get FW State 4543
04/01/21-17:23:02 (GMT) (tRAID): NOTE: QLRebootTimer: QLGetFwState failed
04/01/21-17:23:03 (GMT) (tRAID): NOTE: QLStartFw: Downloading Driver's FW image 03.00.01.47 from 032e4340 4c0c8 bytes , result 0
04/01/21-17:23:16 (GMT) (iacTask7): NOTE: ACS: Acs Needed on Alt: No, StateCode: 0, ReasonCode = 2
04/01/21-17:23:19 (GMT) (iacTask7): NOTE: sas: checkInAlt Peering Enabled
04/01/21-17:23:30 (GMT) (tRAID): WARN: QLMailboxCommand: Cmd = 0069, completion timeout
04/01/21-17:23:30 (GMT) (tRAID): WARN: QLMailboxCommand: command completion timeout, cmd = 0x69
04/01/21-17:23:31 (GMT) (tRAID): NOTE: Qlogic coredump file written to '3S91VL1:/tmp/QLogic_Coredump_port_0_3S91VL1',rc 204E50, expected 204E50
04/01/21-17:23:31 (GMT) (tRAID): WARN: Qlogic coredump file write failed.fclose returned -1

04/01/21-17:23:31 (GMT) (tRAID): NOTE: QLProcessSystemError: Restart RISC
04/01/21-17:23:31 (GMT) (tRAID): ERROR: QLGetFwState: MBOX_CMD_GET_FW_STATE failed. Stat f000
04/01/21-17:23:31 (GMT) (tRAID): NOTE: QLRebootTimer: Status after Get FW State 4543
04/01/21-17:23:31 (GMT) (tRAID): NOTE: QLRebootTimer: QLGetFwState failed
04/01/21-17:23:33 (GMT) (tRAID): NOTE: QLStartFw: Downloading Driver's FW image 03.00.01.47 from 032e4340 4c0c8 bytes , result 0
04/01/21-17:24:00 (GMT) (tRAID): WARN: QLMailboxCommand: Cmd = 0069, completion timeout
04/01/21-17:24:00 (GMT) (tRAID): WARN: QLMailboxCommand: command completion timeout, cmd = 0x69
04/01/21-17:24:01 (GMT) (tRAID): NOTE: Qlogic coredump file written to '3S91VL1:/tmp/QLogic_Coredump_port_0_3S91VL1',rc 204E50, expected 204E50
04/01/21-17:24:01 (GMT) (tRAID): WARN: Qlogic coredump file write failed.fclose returned -1

04/01/21-17:24:01 (GMT) (tRAID): NOTE: QLProcessSystemError: Restart RISC
04/01/21-17:24:01 (GMT) (tRAID): ERROR: QLGetFwState: MBOX_CMD_GET_FW_STATE failed. Stat f000
04/01/21-17:24:01 (GMT) (tRAID): NOTE: QLRebootTimer: Status after Get FW State 4543
04/01/21-17:24:01 (GMT) (tRAID): NOTE: QLRebootTimer: QLGetFwState failed
04/01/21-17:24:02 (GMT) (tRAID): WARN: QLStartAdapter: ControllerErrorCount exceeds threshold.
04/01/21-17:24:02 (GMT) (tRAID): ERROR: QLInitializeDevice: QLStartAdapter failed
04/01/21-17:24:02 (GMT) (tRAID): ERROR: QLAddDevice: controller/device/chip initialization failed.
04/01/21-17:24:02 (GMT) (tRAID): ERROR: qlgEnableHostInterface: QLInitializeDevice failed.
04/01/21-17:24:02 (GMT) (tRAID): NOTE: ********************************************************************************
04/01/21-17:24:02 (GMT) (tRAID): NOTE: QLogic Target Applicat
-=<###>=-
Attaching interface lo0... done

Adding 9768 symbols for standalone.
Error
04/01/21-17:24:16 (GMT) (tRootTask): NOTE: I2C transaction returned 0x0423fe00

WARNING: Reset by alternate controller

Current date: 04/01/21 time: 06:55:22