How to Recover Lost Data from WDC WD40EDAZ-11SLVB0 WD SMR HDD Format

This is one WD SMR HDD WDC WD40EDAZ-11SLVB0 data recovery case by one client who was using other data recovery tools but failed and finally bought Dolphin data recovery tools to fix the SMR HDD format case and get most data back.

The engineer helped the user to backup the second level translator-module 190 by DFL WD HDD repair tool and then go to DFL DDP data recovery equipment, repair 190.

Before repairing 190, all the data nodes records remained in module 190 indicates the valid data is only 15.01GB after format and the user couldn't get lost data back at all，the user tried all methods and tools he had.

After repairing the 190 by DFL-DDP data recovery equipment, the engineer got the following result:

2022/10/25 09:41:14 ---T2 analysis---
2022/10/25 09:41:14 ----------------------------
2022/10/25 09:41:14 Checking SIT:
2022/10/25 09:41:14 SIT Checking...OK!
2022/10/25 09:41:15 **********Vacant nodes count = 0 Overlapped nodes count = 0
2022/10/25 09:41:15 Traversal completes
2022/10/25 09:41:15 ---Param---
2022/10/25 09:41:15 T2 Format:LBA64V2
2022/10/25 09:41:15 Capacity 512:7814037168
2022/10/25 09:41:15 Capacity 4K:976754646
2022/10/25 09:41:15 Root:8192
2022/10/25 09:41:15 Entry pre node:29
2022/10/25 09:41:15 Max entry sects:65535
2022/10/25 09:41:15 Node size:256
2022/10/25 09:41:15 ---Summary---
2022/10/25 09:41:15 Node count:198850
2022/10/25 09:41:15 Uesd count:38690
2022/10/25 09:41:15 Free count:160160
2022/10/25 09:41:15 ---T2 modules---
2022/10/25 09:41:15 T2 size in sectors:455808
2022/10/25 09:41:15 Data pos:13C6800
2022/10/25 09:41:15 Block size:4096
2022/10/25 09:41:15 Free Node ID:38691
2022/10/25 09:41:15 Entry Count:781243
2022/10/25 09:41:15 Used Entry:620135
2022/10/25 09:41:15 Total node count = 198850 Used:38690
2022/10/25 09:41:48 Sort LBA
2022/10/25 09:41:51 **********Vacant nodes = 0 Overlapped nodes = 0
2022/10/25 09:41:51 Valid data = 3544.93(GB) Unallocated = 181.09(GB)
2022/10/25 09:41:51 Vacant nodes count:>=0

Finally about 3.5T data was recovered from the WD SMR hard drives.