Re: why SSD is slower than HDD SAS 15K ?

2018-01-15 Thread NTPT
I bet this is a ssd partition alignment problem there are erase block size of 3mb and this should be taken in account, when You partition ssd drive, creating a raid and filesystem etc... -- Původní e-mail -- Od: Merlin Moncure Komu: Neto pr Datum: 15. 1. 2018 20:17:17 Předmět: Re

Re: why SSD is slower than HDD SAS 15K ?

2018-01-15 Thread NTPT
it depend of  ssd type ie different ssd need diferent alignment.  .  on samsung evo should be partition aligned to 3072 not  default 2048 , to start on erase block bounduary .  And fs block should be 8kb  (as I remember correctly...) -- Původní e-mail -- Od: Neto pr Komu: NTPT