Tengo el siguiente disco WD (3 TB) que me dio un problema (no pude acceder a ningún archivo: incluso un lscomando provocó una espera interminable).
Aquí algunos detalles del disco:
Disk /dev/sda: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Disk model: EZRX-00D8PB0
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Device Start End Sectors Size Type
/dev/sda1 2048 5860532223 5860530176 2.7T Linux filesystem
Después de este problema realizo algunas pruebas para descubrir qué tipo de problema lo está afectando. Como primer paso, realicé una breve prueba sudo smartctl -t short /dev/sdaque me mostró el siguiente error:
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed: read failure 90% 17480 8467144
Luego intenté obtener algunos atributos como se describe en esta otra publicación.Entendiendo smartctl -a salidausando sudo smartctl -a /dev/sda. Aquí puede encontrar la tabla de atributos y los 5 registros de errores más recientes:
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 71
3 Spin_Up_Time 0x0027 174 161 021 Pre-fail Always - 6266
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 695
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 077 077 000 Old_age Always - 17481
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 457
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 63
193 Load_Cycle_Count 0x0032 179 179 000 Old_age Always - 64193
194 Temperature_Celsius 0x0022 122 101 000 Old_age Always - 28
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 197 000 Old_age Always - 356
198 Offline_Uncorrectable 0x0030 197 197 000 Old_age Offline - 1691
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 196 196 000 Old_age Offline - 1691
SMART Error Log Version: 1
ATA Error Count: 47 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 47 occurred at disk power-on lifetime: 232 hours (9 days + 16 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 0a 00 00 00 00
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
e0 00 0a 00 00 00 00 00 04:00:17.522 STANDBY IMMEDIATE
ef 03 46 00 00 00 a0 00 04:00:16.815 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 a0 00 04:00:16.815 IDENTIFY DEVICE
Error 46 occurred at disk power-on lifetime: 232 hours (9 days + 16 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 46 00 00 00 a0 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ef 03 46 00 00 00 a0 00 04:00:16.815 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 a0 00 04:00:16.815 IDENTIFY DEVICE
e1 00 0f 00 00 00 00 00 04:00:15.095 IDLE IMMEDIATE
ef 03 46 00 00 00 a0 00 04:00:14.575 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 a0 00 04:00:14.575 IDENTIFY DEVICE
Error 45 occurred at disk power-on lifetime: 232 hours (9 days + 16 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 0f 00 00 00 00
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
e1 00 0f 00 00 00 00 00 04:00:15.095 IDLE IMMEDIATE
ef 03 46 00 00 00 a0 00 04:00:14.575 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 a0 00 04:00:14.575 IDENTIFY DEVICE
Error 44 occurred at disk power-on lifetime: 232 hours (9 days + 16 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 46 00 00 00 a0 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ef 03 46 00 00 00 a0 00 04:00:14.575 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 a0 00 04:00:14.575 IDENTIFY DEVICE
ef 03 46 00 00 00 a0 00 04:00:12.170 SET FEATURES [Set transfer mode]
Error 43 occurred at disk power-on lifetime: 232 hours (9 days + 16 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 46 00 00 00 a0 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ef 03 46 00 00 00 a0 00 04:00:12.170 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 a0 00 04:00:12.170 IDENTIFY DEVICE
e1 00 0f 00 00 00 00 00 04:00:10.445 IDLE IMMEDIATE
ef 03 46 00 00 00 a0 00 04:00:09.925 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 a0 00 04:00:09.925 IDENTIFY DEVICE
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed: read failure 90% 17480 8467144
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
Luego intenté inspeccionar el LBA_of_first_error(8467144) y, siguiendo una parte deesta guía, lo ejecuto sudo sg_verify --lba=8467144 /dev/sdaobteniendo el siguiente resultado que me confirma que hay un fallo de hardware:
verify(10):
Fixed format, current; Sense key: Medium Error
Additional sense: Id CRC or ECC error
VERIFY(10) medium or hardware error near lba=0x8132c8
Como paso final intenté reasignar el bloque sin éxito sudo sg_reassign --address=8467144 /dev/sda:
REASSIGN BLOCKS: Illegal request, Invalid opcode
sg_reassign failed: Illegal request, Invalid opcode
Entonces, para resumir, ¿me perdí algún paso en esta investigación del disco? ¿Mi disco está muerto o todavía se puede utilizar? No puedo entender si hay algún error grave en la lista de atributos SMART. ¿Pueden ayudarme a entender si la unidad tiene más errores?