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From wiki:

The vital TRIM function is supported by the Linux OS starting with 2.6.33 kernel (available early 2010). However, support amongst various filesystems is still inconsistent or not present. Proper partition alignment is also not carried out by installation software.

So, which filesystem works best for SSD and supports TRIM + partition alignment during install and is available on Ubuntu?

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migrated from stackoverflow.com Jan 3 '11 at 18:07

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OCZ, a big SSD manufacturer, has an excellent writeup and collection of howto's to optimize Linux for SSD's. Key is making sure to disable atime on the device, and a section talking about using EXT4 and aligning it properly.

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