Samovolne odpajanie disku

[Marián Černý]

On 5. 4. 2016 Miroslav Lachman wrote:
> 
>> Co by ste odporucali? Vymenit kabel? Zapojit do ineho portu?
>> 
>> Je tam Samsung 850 PRO, Samsung 840 PRO a dva pevne disky WD. Robi to iba ten Samsung 850.
> 
> Tipnul bych si problem s napajenim, nebo kabel. Kazdopadne by ti v tomhle mohlo pomoct taky zkoumani vystupu SMART (sysutils/smartmontools), jestli se tam zvysuji hodnoty nejakych counteru atd.

Tak som skoro po dvoch mesiacoch prehodil napajacie a SATA kabely medzi dvoma SSD a dvoma HDD, co tam su. Ale urobilo mi to znovu:

ada3 at ahcich3 bus 0 scbus3 target 0 lun 0
ada3: <Samsung SSD 850 PRO 256GB EXM02B6Q> s/n S251NXAG746575T detached
(ada3:ahcich3:0:0:0): Periph destroyed
ada3 at ahcich3 bus 0 scbus3 target 0 lun 0
ada3: <Samsung SSD 850 PRO 256GB EXM02B6Q> ATA-9 SATA 3.x device
ada3: Serial Number S251NXAG746575T
ada3: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 512bytes)
ada3: Command Queueing enabled
ada3: 244198MB (500118192 512 byte sectors: 16H 63S/T 16383C)
ada3: Previously was known as ad10

Znovu to odpojilo ten Samsung 850 PRO, ako predtym. Mimochodom, za tu dobu skoro dvoch mesiacov ten disk odpojilo asi 7 krat.

Data zo SMART vyzerajú ok:

ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
 5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
 9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       1965
12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       15
177 Wear_Leveling_Count     0x0013   099   099   000    Pre-fail  Always       -       11
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0032   067   056   000    Old_age   Always       -       33
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0
199 CRC_Error_Count         0x003e   100   100   000    Old_age   Always       -       0
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       4
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       4707402871

Rovnaky disk (kupovany naraz) mam aj v inom serveri a tam su data zo SMART podobne (resp. horsie, je pouzivany dlhsie):

ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
 5 Reallocated_Sector_Ct   0x0033   099   099   010    Pre-fail  Always       -       1
 9 Power_On_Hours          0x0032   098   098   000    Old_age   Always       -       5492
12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       9
177 Wear_Leveling_Count     0x0013   098   098   000    Pre-fail  Always       -       81
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   099   099   010    Pre-fail  Always       -       1
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   099   099   010    Pre-fail  Always       -       1
187 Uncorrectable_Error_Cnt 0x0032   099   099   000    Old_age   Always       -       13
190 Airflow_Temperature_Cel 0x0032   067   060   000    Old_age   Always       -       33
195 ECC_Error_Rate          0x001a   199   199   000    Old_age   Always       -       13
199 CRC_Error_Count         0x003e   100   100   000    Old_age   Always       -       0
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       3
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       31085531082

Kedze to urobilo aj po vymene kabelov, tak predpokladam, ze chyba je v disku, alebo v kombinacii disku a serveru. Napada ma iba skusit prehodit tie disky navzajom medzi servermi. Alebo ma niekto este nejaky tip?

Dakujem,

Marian