Re: Recommended settings for SSD

[Martin Steigerwald <Martin@lichtvoll.de>]

Am Samstag, 25. Mai 2013, 14:13:07 schrieb Martin Steigerwald:
> The SSD is in use for about 2 years. I left about 25 GiB free of the 300 GB it 
> has.
> 
> merkaba:~> smartctl -a /dev/sda | grep Host
> 225 Host_Writes_32MiB       0x0032   100   100   000    Old_age   Always       
> -       261260
> 227 Workld_Host_Reads_Perc  0x0032   100   100   000    Old_age   Always       
> -       49
> 241 Host_Writes_32MiB       0x0032   100   100   000    Old_age   Always       
> -       261260
> 242 Host_Reads_32MiB        0x0032   100   100   000    Old_age   Always       
> -       559520
> 
> So thats 261260 * 32 MiB = 8360320 MiB = 8164,375 GiB = about 8 TiB writes in 
> total.
> 
> Intel claims a useful life of 5 years with 20 GB of host writes per day. For 2 
> years thats 365*20 = 7300 GB. So it seems that I am exceeding this a bit.
> 
> Strange, last time I looked it was way under the specified limit. KDE Nepomuk / 
> Akonadi stuff? Switch of /home to BTRFS? I don´t know. What I know that Akonadi 
> / KDEPIM has gone wild once and wrote 450 GB in a row until I stopped it doing 
> that manually.

Well, all is well: I just calculated for one year. But the SSD is two years old.

That makes: 365*2*20 = 14600 GB. About 8 TiB is way below it :)

-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7