On 07/13/2012 01:42 PM, Volker Armin Hemmann wrote:
> Am Freitag, 13. Juli 2012, 13:42:47 schrieb Allan Gottlieb:
>> I will be getting a new laptop with ssd (250GB).
>>
>> I currently run ~amd64 and wonder if this is too much writing for the
>> flash.
>>
>> I have adapted to and now enjoy gnome3.  If I were forced to run stable
>> to limit compiles I would still use package.accept_keywords to permit
>> gnome3.
>>
>> Any experiences with testing and ssd?
>>
>> thanks,
>> allan
> 
> one ssd for /
> one ssd for /home
> 
> ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  
> WHEN_FAILED RAW_VALUE
>   9 Power_On_Hours          0x0032   098   098   000    Old_age   Always      
>  
> -       8277
>  12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always      
>  
> -       850
> 175 Program_Fail_Count_Chip 0x0032   100   100   010    Old_age   Always      
>  
> -       0
> 176 Erase_Fail_Count_Chip   0x0032   100   100   010    Old_age   Always      
>  
> -       0
> 177 Wear_Leveling_Count     0x0013   093   093   017    Pre-fail  Always      
>  
> -       398
> 178 Used_Rsvd_Blk_Cnt_Chip  0x0013   083   083   010    Pre-fail  Always      
>  
> -       10
> 179 Used_Rsvd_Blk_Cnt_Tot   0x0013   097   097   010    Pre-fail  Always      
>  
> -       48
> 180 Unused_Rsvd_Blk_Cnt_Tot 0x0013   097   097   010    Pre-fail  Always      
>  
> -       1872
> 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 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always      
>  
> -       0
> 195 Hardware_ECC_Recovered  0x001a   200   200   000    Old_age   Always      
>  
> -       0
> 198 Offline_Uncorrectable   0x0030   100   100   000    Old_age   Offline     
>  -       
> 0
> 199 UDMA_CRC_Error_Count    0x003e   253   253   000    Old_age   Always      
>  
> -       1
> 232 Available_Reservd_Space 0x0013   083   083   010    Pre-fail  Always      
>  
> -       50
> 233 Media_Wearout_Indicator 0x0032   099   099   000    Old_age   Always      
>  
> -       2156
> 
> and
> 
> ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  
> WHEN_FAILED RAW_VALUE
>   1 Raw_Read_Error_Rate     0x000f   094   094   050    Pre-fail  Always      
>  
> -       0/6002739
>   5 Retired_Block_Count     0x0033   100   100   003    Pre-fail  Always      
>  
> -       2
>   9 Power_On_Hours_and_Msec 0x0032   098   098   000    Old_age   Always      
>  
> -       1924h+46m+24.900s
>  12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always      
>  
> -       256
> 171 Program_Fail_Count      0x0032   000   000   000    Old_age   Always      
>  
> -       2
> 172 Erase_Fail_Count        0x0032   000   000   000    Old_age   Always      
>  
> -       0
> 174 Unexpect_Power_Loss_Ct  0x0030   000   000   000    Old_age   Offline     
>  -       
> 5
> 177 Wear_Range_Delta        0x0000   000   000   000    Old_age   Offline     
>  -       
> 0
> 181 Program_Fail_Count      0x0032   000   000   000    Old_age   Always      
>  
> -       2
> 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   030   030   000    Old_age   Always      
>  
> -       30 (Min/Max 30/30)
> 195 ECC_Uncorr_Error_Count  0x001c   120   120   000    Old_age   Offline     
>  -       
> 0/6002739
> 196 Reallocated_Event_Count 0x0033   100   100   003    Pre-fail  Always      
>  
> -       2
> 201 Unc_Soft_Read_Err_Rate  0x001c   120   120   000    Old_age   Offline     
>  -       
> 0/6002739
> 204 Soft_ECC_Correct_Rate   0x001c   120   120   000    Old_age   Offline     
>  -       
> 0/6002739
> 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     
>  -       
> 910
> 234 SandForce_Internal      0x0032   000   000   000    Old_age   Always      
>  
> -       786
> 241 Lifetime_Writes_GiB     0x0032   000   000   000    Old_age   Always      
>  
> -       786
> 242 Lifetime_Reads_GiB      0x0032   000   000   000    Old_age   Always      
>  
> -       2457
> 
> testing, kde, + kde-testing overlay
> 
> but:
> /var 
> and PORTDIR not on ssd.
> 
> seriously, intel had once some calculations that even with lots of daily 
> writes you could go on for years as long as you did not fill up the ssd 
> completely.

Are you using a non-journaling filesystem?
 




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