I was running a small instance on Amazon EC2. I'm trying to migrate it to a micro as it requires very minimal processing power. One thing I just learned though, is that micro instances do not come with ephemeral storage like the other instance sizes.
Here is the fstab file from the small instance. I just added the nobootwait for the /dev/sda3 line.
/dev/sda1 / ext3 defaults 0 0
/dev/sdb /mnt ext3 defaults 0 0
/dev/sda3 swap swap defaults,nobootwait 0 0
none /dev/pts devpts gid=5,mode=620 0 0
none /dev/shm tmpfs defaults 0 0
none /proc proc defaults 0 0
none /sys sysfs defaults 0 0
/dev/sdf /apps/ ext3 defaults,acl 1 1
/dev/sdg /data/ ext3 defaults 1 1
Now when I launch this instance as a micro I get a warning:
Mounting local filesystems: mount: special device /dev/sdb does not exist [FAILED]
It still boots up fine and things seem to be working great, but is there anything I'm missing that I would need the ephemeral storage for that I'm not seeing or thinking about?
/mntis just some local scratch space that is not backed up or shared. You should be considering your own usage and asking yourself the question of whether you need it or not. – jw013 Aug 3 '12 at 15:36do any system components need it. The filesystem type isswap. At least on windows it's a very bad idea not to have a swap file. Thank goodness this isn't windows. – cwd Aug 3 '12 at 15:50