Administrace komentářů

Ale proč? pokud je to skutečně SSD a ne flash disk, tak normální diskovou zápisovou zátěž udrží na pár let. Neříkám, když na SSD by byla databáze nebo některé jiné náročné operace. podíval jsem se práve ted do svého smart u ssd disku a přikládám.

Model Family:     SandForce Driven SSDs
Device Model:     OCZ-AGILITY3
Serial Number:    OCZ-3W17E1197QC92G7L
LU WWN Device Id: 5 e83a97 e1d7c54f9
Firmware Version: 2.15
User Capacity:    120,034,123,776 bytes [120 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS, ACS-2 T13/2015-D revision 3
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Mar 11 22:30:38 2013 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever 
                                        been run.
Total time to complete Offline 
data collection:                ( 2097) seconds.
Offline data collection
capabilities:                    (0x7f) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Abort Offline collection upon new
                                        command.
                                        Offline surface scan supported.                                              
                                        Self-test supported.                                                         
                                        Conveyance Self-test supported.                                              
                                        Selective Self-test supported.                                               
SMART capabilities:            (0x0003) Saves SMART data before entering                                             
                                        power-saving mode.                                                           
                                        Supports SMART auto save timer.                                              
Error logging capability:        (0x01) Error logging supported.                                                     
                                        General Purpose Logging supported.                                           
Short self-test routine                                                                                              
recommended polling time:        (   1) minutes.                                                                     
Extended self-test routine                                                                                           
recommended polling time:        (  48) minutes.                                                                     
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x0021) SCT Status supported.
                                        SCT Data Table supported.

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   080   080   050    Pre-fail  Always       -       0/127964656
  5 Retired_Block_Count     0x0033   100   100   003    Pre-fail  Always       -       1
  9 Power_On_Hours_and_Msec 0x0032   092   092   000    Old_age   Always       -       7053h+46m+21.320s
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       197
171 Program_Fail_Count      0x0032   000   000   000    Old_age   Always       -       1
172 Erase_Fail_Count        0x0032   000   000   000    Old_age   Always       -       0
174 Unexpect_Power_Loss_Ct  0x0030   000   000   000    Old_age   Offline      -       30
177 Wear_Range_Delta        0x0000   000   000   000    Old_age   Offline      -       3
181 Program_Fail_Count      0x0032   000   000   000    Old_age   Always       -       1
182 Erase_Fail_Count        0x0032   000   000   000    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
194 Temperature_Celsius     0x0022   128   129   000    Old_age   Always       -       128 (0 127 0 129 0)
195 ECC_Uncorr_Error_Count  0x001c   120   120   000    Old_age   Offline      -       0/127964656
196 Reallocated_Event_Count 0x0033   100   100   003    Pre-fail  Always       -       1
201 Unc_Soft_Read_Err_Rate  0x001c   120   120   000    Old_age   Offline      -       0/127964656
204 Soft_ECC_Correct_Rate   0x001c   120   120   000    Old_age   Offline      -       0/127964656
230 Life_Curve_Status       0x0013   100   100   000    Pre-fail  Always       -       100
231 SSD_Life_Left           0x0013   100   100   010    Pre-fail  Always       -       0
233 SandForce_Internal      0x0000   000   000   000    Old_age   Offline      -       3666
234 SandForce_Internal      0x0032   000   000   000    Old_age   Always       -       3653
241 Lifetime_Writes_GiB     0x0032   000   000   000    Old_age   Always       -       3653
242 Lifetime_Reads_GiB      0x0032   000   000   000    Old_age   Always       -       5331

A hlavní data za cca 7000 hodin provozu zápis do 128GB SSD je 3,6 TB takže cca 30 x z očekáváného počtu 3000 x a mám ho přes rok. očekávám že mě vydrží dalších 5-6 let v klidu. Na ssd mám / a /home s btrfs v podstatě pouze s vypnutým atime, pravidelně aktualizuji a tak to bude nějaká část toho zápisu (root má 10 G).