Disk and Filesystem

Filesystem tweaks

  • Configure soft updates everywhere (softdep)

  • Disable access time logging (noatime)

  • If possible mount with noexec, nosuid, nodev

<duid> /home ffs rw,nodev,nosuid,noatime,softdep 1 2

NTFS

  • Built-in NTFS support is read-only

  • Install ntfs-3g from ports to get write support

List all available disks

sysctl hw.disknames

List all open files

  • For a PID

fstat -p <PID>

  • For a user

fstat -u <user>

Display I/O throughput

systat iostat

Create an encrypted image file

dd if=/dev/zero of=my_encrypted.img bs=1m count=1024
vnconfig -k /dev/vnd0c my_encrypted.img
newfs /dev/vnd0