-- MikeGore - 18 May 2012

SSD Solid State Disks

Alignment

• see AdvancedFormatDrives
• Alignment is very important for the performance of an SSD
  • Typically 4K or larger alignment on partitions helps.

TRIM

• Summary: http://en.wikipedia.org/wiki/TRIM
  • Lets the OS help the SSD do "garbage collection" and maintain write performance over time.

Linux TRIM

• As of 10.10 TRIM is supported natively by the kernel. It requires using the "discard" option in /etc/fstab - see the refrences below for examples

References

• http://disktrim.sourceforge.net/
• http://sites.google.com/site/lightrush/random-1/howtoconfigureext4toenabletrimforssdsonubuntu
• http://sites.google.com/site/lightrush/random-1/checkiftrimonext4isenabledandworking