Hi,   Not Sure which component is exactly failed .   Channel: 1a Shelf: 1 SES device path: local access: 1a.01.99 Module type: IOM3; monitoring is active Shelf status: unrecoverable condition SES Configuration, shelf 1: logical identifier=0x50050cc1020169c0 vendor identification=NETAPP product identification=DS4243 product revision level=0160 Vendor-specific information: Product Serial Number: SHM0954292G0JHN Status reads attempted: 2818990; failed: 0 Control writes attempted: 10965; failed: 0 Shelf bays with disk devices installed: 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 with error: none Power Supply installed element list: 1, 2, 3, 4; with error: 1, 3 Power Supply information by element: [1] Serial number: PMW82562004C55D Part number: 0082562-11 Type: 9C Firmware version: 0305 Swaps: 0 [2] Serial number: PMW82562004C594 Part number: 0082562-11 Type: 9C Firmware version: 0305 Swaps: 0 [3] Serial number: PMW82562004C7A0 Part number: 0082562-11 Type: 9C Firmware version: 0305 Swaps: 0 [4] Serial number: PMW82562004C4B1 Part number: 0082562-11 Type: 9C     Channel: 1b Shelf: 10 SES device path: local access: 1b.10.99 Module type: IOM3; monitoring is active Shelf status: unrecoverable condition SES Configuration, shelf 10: logical identifier=0x50050cc102016790 vendor identification=NETAPP product identification=DS4243 product revision level=0160 Vendor-specific information: Product Serial Number: SHM0954293G0JMC Status reads attempted: 2818997; failed: 0 Control writes attempted: 9846; failed: 0 Shelf bays with disk devices installed: 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 with error: none Power Supply installed element list: 1, 4; with error: 1 Power Supply information by element: [1] Serial number: PMW82562004C631 Part number: 0082562-11 Type: 9C Firmware version: 0305 Swaps: 0 [2] Serial number: <N/A> Part number: <N/A> Type: <N/A> Firmware version: <N/A> Swaps: 0 [3] Serial number: <N/A> Part number: <N/A> Type: <N/A> Firmware version: <N/A> Swaps: 0 [4] Serial number: PMW82562004C499 Part number: 0082562-11 Channel: 1b Shelf: 12 SES device path: local access: 1b.12.99 Module type: IOM3; monitoring is active Shelf status: unrecoverable condition SES Configuration, shelf 12: logical identifier=0x50050cc102016194 vendor identification=NETAPP product identification=DS4243 product revision level=0160 Vendor-specific information: Product Serial Number: SHM0954293G0J5H Status reads attempted: 2818997; failed: 0 Control writes attempted: 9846; failed: 0 Shelf bays with disk devices installed: 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 with error: none Power Supply installed element list: 1, 4; with error: 1 Power Supply information by element: [1] Serial number: PMW82562004B7EF Part number: 0082562-11 Type: 9C Firmware version: 0305 Swaps: 0 [2] Serial number: <N/A> Part number: <N/A> Type: <N/A> Firmware version: <N/A> Swaps: 0 [3] Serial number: <N/A> Part number: <N/A> Type: <N/A> Firmware version: <N/A> Swaps: 0 [4] Serial number: PMW82562004B277 Part number: 0082562-11     ... View more