[2024-feb-29] Sad news: Eric Layton aka Nocturnal Slacker aka vtel57 passed away on Feb 26th, shortly after hospitalization. He was one of our Wiki's most prominent admins. He will be missed.

Welcome to the Slackware Documentation Project

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
Next revisionBoth sides next revision
howtos:hardware:smart_hdd_diagnostics [2015/01/05 00:56 (UTC)] – [#4 Start_Stop_Count and #12 Power_Cycle_Count and #193 Load_Cycle_Count] metaschimahowtos:hardware:smart_hdd_diagnostics [2015/01/05 00:58 (UTC)] – [Bad Blocks (#5, 196, 197, 198)] metaschima
Line 199: Line 199:
 ===== #174 Unexpected power loss count and #192 Power-Off_Retract_Count ===== ===== #174 Unexpected power loss count and #192 Power-Off_Retract_Count =====
  
-Sudden power loss is detrimental to both HDDs and [[http://hardware.slashdot.org/story/13/03/01/224257/how-power-failures-corrupt-flash-ssd-data|SSDs]]. UPS power backups should be used for systems that are on all time for this reason as well as many others. Make sure to also shutdown your computer properly whenever possible to prevent data loss.+Sudden power loss is detrimental to both HDDs and [[http://hardware.slashdot.org/story/13/03/01/224257/how-power-failures-corrupt-flash-ssd-data|SSDs]]. UPS power backups should be used for systems that are on all time for this reason as well as many others. Make sure to also shutdown your computer properly whenever possible to prevent damage and data loss.
  
 ===== #190 Airflow_Temperature_Cel and 194 Temperature_Celsius ===== ===== #190 Airflow_Temperature_Cel and 194 Temperature_Celsius =====
Line 207: Line 207:
 ===== Bad Blocks (#5, 196, 197, 198) ===== ===== Bad Blocks (#5, 196, 197, 198) =====
  
-Bad blocks are basically areas of the disk surface that are damaged and can no longer hold data reliably. Internally the HDD/SSD deals with these by marking them and re-mapping/allocating them to other areas. Bad blocks increase with the age of the drive. It can be expected that you will encounter bad blocks with every HDD and SSD. The question is when does this become something to be concerned about ? That is hard to say, and in general you will have to deal with each device on an individual basis. A large increase in the number of bad blocks could mean the drive in nearing its end. Keep monitoring the ''Pre-fail'' attributes and decide when to change it out.+Bad blocks are basically areas of the disk surface that are damaged and can no longer hold data reliably. Internally the HDD/SSD deals with these by marking them and remapping/reallocating them to other areas. Bad blocks increase with the age of the drive. It can be expected that you will encounter bad blocks with every HDD and SSD. The question is when does this become something to be concerned about ? That is hard to say, and in general you will have to deal with each device on an individual basis. A large increase in the number of bad blocks could mean the drive in nearing its end. Keep monitoring the ''Pre-fail'' attributes and decide when to change it out.
  
 ====== SMART Tests ====== ====== SMART Tests ======

Trace:

howtos:hardware:smart_hdd_diagnostics ()