WD 4TB - Issues - Possible Bad Sectors?
I recently got rid of my NAS where this drive was running. -- WD40EZRX Western Digital 4TB. However, transfers to and from are super slow. I have tried two enclosures which support this drive, an both have the same issue. One is SATA - USB2, and the other is SATA to USB3 (newer).
Prior to this findings, I did a complete erase and re-partition, so it should be OK. That said, I may be needing to 0 out the disk, but the dd command will take a good 24+ hours on a drive this size.
Any thoughts?
Pulled up TestDisk, and ran a sanity check.
TestDisk 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
Disk /dev/disk3 - 4000 GB / 3726 GiB - 976754646 sectors (RO)
Analyse sector 976748544/976754645: 00%
check_FAT: Unusual media descriptor (0xf0!=0xf8)
Warning: number of heads/cylinder mismatches 16 (FAT) != 1 (HD)
Warning: number of sectors per track mismatches 32 (FAT) != 1 (HD)
EFI System 6 76805 76800 [EFI]
Mac HFS 76806 976721871 976645066
Here is the info from diskutil
| diskutil info /dev/disk3 | [22:14:35] |
| Device Identifier: | disk3 |
| Device Node: | /dev/disk3 |
| Whole: | Yes |
| Part of Whole: | disk3 |
| Device / Media Name: | ASMT1053 |
| Volume Name: | Not applicable (no file system) |
| Mounted: | Not applicable (no file system) |
| File System: | None |
| Content (IOContent): | GUID_partition_scheme |
| OS Can Be Installed: | No |
| Media Type: | Generic |
| Protocol: | USB |
| SMART Status: | Not Supported |
| Total Size: | 4.0 TB (4000787030016 Bytes) (exactly 7814037168 512-Byte-Units) |
| Volume Free Space: | Not applicable (no file system) |
| Device Block Size: | 4096 Bytes |
| Read-Only Media: | No |
| Read-Only Volume: | Not applicable (no file system) |
| Device Location: | External |
| Removable Media: | No |
| Virtual: | No |
| OS 9 Drivers: | No |
| Low Level Format: | Not supported |
Mac Mini Server (Late 2012), OS X El Capitan (10.11.2)
