SSD Linux

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Cloning

The data migration tool provided by most SSD manufacturers runs only under Windows. If a machine does not have Windows, then a generic tool, such as Clonezilla would need to be used.

I/O Scheduler

Desktop oriented distributions typically have this set to CFQ - which is suited to conventional HDD. SSD have greater parallelism and should benefit from setting to "noop" or "deadline". The exact procedure for this low-level change in kernel settings varies with distribution.

Management

SSD require a manufacturer specific tool for some operations, notably secure erase. Only the following brands are known to provide a software tool which runs under Linux

  • ARC
  • Micron

TRIM

TRIM is a standard (S)ATA command. Most implementations of Linux do not invoke TRIM automatically in background. It needs to be run manually on a weekly or longer basis, depending on rate at which the SSD is written.

#trim -v /dev/sd(x)  

gives useful information

If only a small percentage of the drive is trimmed, then the TRIM interval might be extended ?

Manufacturer's data sheets often do not state whether or not TRIM is supported. It is known to work with the following brands under Linux

  • ARC

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