A alta quantidade de high fly é gravada no disco recentemente comprado

Question

Eu recentemente (há cerca de uma semana) comprei um disco rígido (Seagate ST3000VN007) e configurei o S.M.A.R.T. Monitorização Eu também usei badblocks para ver se havia algum dano importante por causa do método de envio.

Hoje, vi que o número de gravações de alta mosca é suspeitosamente alto (valor bruto de 39). Eu sei que é um parâmetro "informativo", mas eu sinto que é um pouco alto demais para um novo disco.

Devo me preocupar e retornar a unidade, ou é normal ver um número tão alto (por quê?)?

Aqui está o S.M.A.R.T. dados:

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   115   100   006    Pre-fail  Always       -       99844816
  3 Spin_Up_Time            0x0003   096   096   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       5
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   100   253   030    Pre-fail  Always       -       317858
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       92
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       5
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0
189 High_Fly_Writes         0x003a   061   061   000    Old_age   Always       -       39
190 Airflow_Temperature_Cel 0x0022   067   064   045    Old_age   Always       -       33 (Min/Max 29/36)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       2
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       5
194 Temperature_Celsius     0x0022   033   040   000    Old_age   Always       -       33 (0 22 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0

    

Answer 1

Eu vi que o número alto de gravações de moscas é suspeitosamente alto

Recomenda-se o backup regular e preste muita atenção a outros parâmetros e à integridade geral da unidade.

Também vale a pena verificar esse valor com frequência, pois o Back blaze disse que "muitas das unidades com falha com esse erro tinham um número semelhante de erros, mas foram distribuídas em um período de tempo muito menor, por exemplo 52 erros em um De repente, o SMART 189 parece muito interessante em prever falhas, procurando por clusters de High Fly Writes durante um pequeno período de tempo. "

High Fly Writes S.M.A.R.T. parameter indicates the count of these errors detected over the lifetime of the drive. HDD producers implement a Fly Height Monitor that attempts to provide additional protections for write operations by detecting when a recording head is flying outside its normal operating range. If an unsafe fly height condition is encountered, the write process is stopped, and the information is rewritten or reallocated to a safe region of the hard drive. Recommendations

This parameter is considered informational by the most hardware vendors. Although degradation of this parameter can be an indicator of drive aging and/or potential electromechanical problems, it does not directly indicate imminent drive failure. Regular backup is recommended. Pay closer attention to other parameters and overall drive health.

Fonte S.M.A.R.T. Atributo: High Fly Writes | Base de conhecimento

Another stat to consider: SMART 189 – High Fly Writes

This is a stat we’ve been reviewing to see if it will join our current list of five SMART stats we use today. This stat is the cumulative count of the number of times the recording head “flies” outside its normal operating range. Below we list the percentage of operational and failed drives where the SMART 189 raw value is greater than zero.

Failed Drives: 47.0%

Operational Drives: 16.4% 

The false positive percentage of operational drives having a greater than zero value may at first glance seem to render this stat meaningless. But what if I told you that for most of the operational drives with SMART 189 errors, that those errors were distributed fairly evenly over a long period of time. For example, there was one error a week on average for 52 weeks. In addition, what if I told you that many of the failed drives with this error had a similar number of errors, but they were distributed over a much shorter period of time, for example 52 errors over a one-week period. Suddenly SMART 189 looks very interesting in predicting failure by looking for clusters of High Fly Writes over a small period of time. We are currently in the process of researching the use of SMART 189 to determine if we can define a useful range of rates at which errors occur.

Fonte Que erros de disco rígido SMART nos contam