Ahci(4) needed for TRIM

[jimp]

The old regex worked fine when I tested it, e.g.

$ cat test.txt 
ad0
da0
ada0
$ grep '^[ad][da]a*[0-9]\{1,2\}$' test.txt 
ad0
da0
ada0
$ ls /dev | grep '^[ad][da]a*[0-9]\{1,2\}$'
ad4
ad6
ada0
ada1
da0

The newer one is definitely better, but the old one wasn't broken on any system I tried it on.

[markn62]

This thread got TRIM enabled on an AMD64.  Curious if "time" is the best optimization method or if it's even worth looking into.

[2.1-RC1][admin@pfsense.router]/(2): tunefs -p /
tunefs: POSIX.1e ACLs: (-a)                                disabled
tunefs: NFSv4 ACLs: (-N)                                  disabled
tunefs: MAC multilabel: (-l)                              disabled
tunefs: soft updates: (-n)                                disabled
tunefs: gjournal: (-J)                                    disabled
tunefs: trim: (-t)                                        enabled
tunefs: maximum blocks per file in a cylinder group: (-e)  2048
tunefs: average file size: (-f)                            16384
tunefs: average number of files in a directory: (-s)      64
tunefs: minimum percentage of free space: (-m)            8%
tunefs: optimization preference: (-o)                      time
tunefs: volume label: (-L)