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Trying to preclear disk 'write protection' error

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Never seen this before on a HDD... but the logs confirm that this disk(which has some interface damage) is currently write protected... Ideas?

Jun 11 21:31:39 Tower kernel: scsi 2:0:26:0: enclosure logical id (0x50050cc102058f07), slot(1)

Jun 11 21:31:39 Tower kernel: scsi 2:0:26:0: qdepth(254), tagged(1), scsi_level(8), cmd_que(1)

Jun 11 21:31:39 Tower kernel: scsi 2:0:26:0: Power-on or device reset occurred

Jun 11 21:31:39 Tower kernel: sd 2:0:26:0: Attached scsi generic sg25 type 0

Jun 11 21:31:39 Tower kernel: end_device-2:0:26: add: handle(0x0023), sas_addr(0x5000c500d8ae8fe5)

Jun 11 21:31:39 Tower kernel: sd 2:0:26:0: [sdy] Spinning up disk...

Jun 11 21:32:16 Tower kernel: .................................ready

Jun 11 21:32:16 Tower kernel: sd 2:0:26:0: [sdy] 35156656128 512-byte logical blocks: (18.0 TB/16.4 TiB)

Jun 11 21:32:16 Tower kernel: sd 2:0:26:0: [sdy] 4096-byte physical blocks

Jun 11 21:32:16 Tower kernel: sd 2:0:26:0: [sdy] Write Protect is on

Jun 11 21:32:16 Tower kernel: sd 2:0:26:0: [sdy] Mode Sense: df 00 90 08

Jun 11 21:32:16 Tower kernel: sd 2:0:26:0: [sdy] Write cache: disabled, read cache: enabled, supports DPO and FUA

Jun 11 21:32:16 Tower kernel: sd 2:0:26:0: [sdy] Preferred minimum I/O size 4096 bytes

Jun 11 21:32:16 Tower kernel: sd 2:0:26:0: [sdy] Attached SCSI disk

Jun 11 21:32:17 Tower emhttpd: online: ST18000NM004J_ZR57HZKZ0000C2232NF7_35000c500d8ae8fe7 (sdy) 512 35156656128

Jun 11 21:32:17 Tower emhttpd: read SMART /dev/sdy

  • Author

The interface damage appears like the disk was dropped into a sata caddie and yea... not good... out of the 5 disks I got... 2 have lifted pads... this third disk is the only other disk I am willing to put into my array...

  • Author

to note... my best guess is that this disk was shoved into a SATA interface(Its SAS) and thus pushed up the 4? pins right above the key(for a sata connection) and thus severed one of these pins? Not much to be found on the internet about this but, yea... trying to help get a clue as to what the issue is...

Does someone here know if those 4 connectors atop a SAS interface could be used/is to lockout write operations on a SAS drive?

  • Community Expert
4 hours ago, mathomas3 said:

Write Protect is on

You must disable this first, post the SMART report for that disk.

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