November 20, 201510 yr a buddy of mine ran hdparm on this ssd from a usb enclosure, now when i try to format it i get a i/o error is this fixable? here is the log output Nov 20 09:12:08 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:08 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:08 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:08 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 20 00 Nov 20 09:12:08 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:09 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:09 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:09 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:09 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:09 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:09 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:09 SERVER emhttp: ckmbr: read: Input/output error Nov 20 09:12:09 SERVER emhttp: shcmd (73): set -o pipefail ; mkfs.xfs -m crc=1,finobt=1 -f /dev/sdk1 |& logger Nov 20 09:12:09 SERVER logger: /dev/sdk1: No such file or directory Nov 20 09:12:09 SERVER logger: Usage: mkfs.xfs Nov 20 09:12:09 SERVER logger: /* blocksize */#011#011[-b log=n|size=num] Nov 20 09:12:09 SERVER logger: /* metadata */#011#011[-m crc=0|1,finobt=0|1] Nov 20 09:12:09 SERVER logger: /* data subvol */#011[-d agcount=n,agsize=n,file,name=xxx,size=num, Nov 20 09:12:09 SERVER logger: #011#011#011 (sunit=value,swidth=value|su=num,sw=num|noalign), Nov 20 09:12:09 SERVER logger: #011#011#011 sectlog=n|sectsize=num Nov 20 09:12:09 SERVER logger: /* force overwrite */#011[-f] Nov 20 09:12:09 SERVER logger: /* inode size */#011[-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2, Nov 20 09:12:09 SERVER logger: #011#011#011 projid32bit=0|1] Nov 20 09:12:09 SERVER logger: /* no discard */#011[-K] Nov 20 09:12:09 SERVER logger: /* log subvol */#011[-l agnum=n,internal,size=num,logdev=xxx,version=n Nov 20 09:12:09 SERVER logger: #011#011#011 sunit=value|su=num,sectlog=n|sectsize=num, Nov 20 09:12:09 SERVER logger: #011#011#011 lazy-count=0|1] Nov 20 09:12:09 SERVER logger: /* label */#011#011[-L label (maximum 12 characters)] Nov 20 09:12:09 SERVER logger: /* naming */#011#011[-n log=n|size=num,version=2|ci,ftype=0|1] Nov 20 09:12:09 SERVER logger: /* no-op info only */#011[-N] Nov 20 09:12:09 SERVER logger: /* prototype file */#011[-p fname] Nov 20 09:12:09 SERVER logger: /* quiet */#011#011[-q] Nov 20 09:12:09 SERVER logger: /* realtime subvol */#011[-r extsize=num,size=num,rtdev=xxx] Nov 20 09:12:09 SERVER logger: /* sectorsize */#011[-s log=n|size=num] Nov 20 09:12:09 SERVER logger: /* version */#011#011[-V] Nov 20 09:12:09 SERVER logger: #011#011#011devicename Nov 20 09:12:09 SERVER logger: is required unless -d name=xxx is given. Nov 20 09:12:09 SERVER logger: is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB), Nov 20 09:12:09 SERVER logger: xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB). Nov 20 09:12:09 SERVER logger: is xxx (512 byte blocks). Nov 20 09:12:09 SERVER emhttp: shcmd: shcmd (73): exit status: 1 Nov 20 09:12:09 SERVER emhttp: shcmd (74): mkdir -p /mnt/cache Nov 20 09:12:09 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:09 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:09 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:09 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 3b 9e 12 00 00 00 08 00 Nov 20 09:12:09 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 1000215040 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 3b 9e 12 00 00 00 08 00 Nov 20 09:12:10 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 1000215040 Nov 20 09:12:10 SERVER kernel: Buffer I/O error on dev sdk, logical block 125026880, async page read Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 3b 9e 12 a0 00 00 08 00 Nov 20 09:12:10 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 1000215200 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 3b 9e 12 a0 00 00 08 00 Nov 20 09:12:10 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 1000215200 Nov 20 09:12:10 SERVER kernel: Buffer I/O error on dev sdk, logical block 125026900, async page read Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:10 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:10 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:11 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:11 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 08 00 00 08 00 Nov 20 09:12:11 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 8 Nov 20 09:12:11 SERVER kernel: Buffer I/O error on dev sdk, logical block 1, async page read Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:11 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 3b 9e 12 a8 00 00 08 00 Nov 20 09:12:11 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 1000215208 Nov 20 09:12:11 SERVER kernel: Buffer I/O error on dev sdk, logical block 125026901, async page read Nov 20 09:12:11 SERVER kernel: Buffer I/O error on dev sdk, logical block 125026901, async page read Nov 20 09:12:12 SERVER kernel: Buffer I/O error on dev sdk, logical block 125026901, async page read Nov 20 09:12:12 SERVER kernel: Buffer I/O error on dev sdk, logical block 125026901, async page read Nov 20 09:12:12 SERVER kernel: Buffer I/O error on dev sdk, logical block 125026901, async page read Nov 20 09:12:14 SERVER kernel: scsi_io_completion: 10 callbacks suppressed Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 3b 9e 12 a8 00 00 08 00 Nov 20 09:12:14 SERVER kernel: blk_update_request: 10 callbacks suppressed Nov 20 09:12:14 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 1000215208 Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 3b 9e 12 a8 00 00 08 00 Nov 20 09:12:14 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 1000215208 Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:14 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:14 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:15 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:15 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:15 SERVER kernel: buffer_io_error: 10 callbacks suppressed Nov 20 09:12:15 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:15 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:15 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:15 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:15 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:15 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:16 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:16 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:16 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:16 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:16 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:16 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:16 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:16 SERVER kernel: Buffer I/O error on dev sdk, logical block 256, async page read Nov 20 09:12:17 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:17 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:17 SERVER kernel: Buffer I/O error on dev sdk, logical block 0, async page read Nov 20 09:12:19 SERVER kernel: scsi_io_completion: 11 callbacks suppressed Nov 20 09:12:19 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:19 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:19 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:19 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:19 SERVER kernel: blk_update_request: 11 callbacks suppressed Nov 20 09:12:19 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:19 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:19 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:19 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:19 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:19 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:20 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 Nov 20 09:12:20 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 0 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 08 00 00 08 00 Nov 20 09:12:20 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 8 Nov 20 09:12:20 SERVER kernel: buffer_io_error: 11 callbacks suppressed Nov 20 09:12:20 SERVER kernel: Buffer I/O error on dev sdk, logical block 1, async page read Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:20 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 08 00 00 08 00 Nov 20 09:12:20 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 8 Nov 20 09:12:20 SERVER kernel: Buffer I/O error on dev sdk, logical block 1, async page read Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 08 00 00 08 00 Nov 20 09:12:21 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 8 Nov 20 09:12:21 SERVER kernel: Buffer I/O error on dev sdk, logical block 1, async page read Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 08 00 00 08 00 Nov 20 09:12:21 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 8 Nov 20 09:12:21 SERVER kernel: Buffer I/O error on dev sdk, logical block 1, async page read Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] Sense Key : 0x5 [current] Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] ASC=0x74 ASCQ=0x79 Nov 20 09:12:21 SERVER kernel: sd 8:0:1:0: [sdk] CDB: opcode=0x28 28 00 00 00 00 18 00 00 08 00 Nov 20 09:12:21 SERVER kernel: blk_update_request: I/O error, dev sdk, sector 24 Nov 20 09:12:21 SERVER kernel: Buffer I/O error on dev sdk, logical block 3, async page read
November 23, 201510 yr hdparm is a tool with a huge number of commands possible, you didn't say what he did to the drive. As always, a complete syslog, or better yet the diagnostics would have been helpful. We always need the very first errors that occur, plus the drive setup info. From the top of your excerpt, sector 0 could not be updated, probably couldn't be accessed, which means the drive probably can't be accessed, but the preceding errors are needed to know why. If you can't access sector 0, then you can't access the partition table, so formatting is not possible. Sometimes, just a reboot is needed, to reinitialize the drive setup, but I don't know what he did to the drive.
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