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Need SSD set up tips for 4P unit
- Thread starter thinklet
- Start date
402blownstroker
[H]ard|DCer of the Month - Nov. 2012
- Joined
- Jan 5, 2006
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In your /etc/fstab file make sure you have the following for the drive:
Where /dev/sdXY is the SSD drive. If you only have the single SSD in the system, then it will be sdaX. With a LVM setup it is similar to the above. The important thing is the 'noatime,discard' options.
Code:
/dev/sdXY / ext4 noatime,discard 0 1Where /dev/sdXY is the SSD drive. If you only have the single SSD in the system, then it will be sdaX. With a LVM setup it is similar to the above. The important thing is the 'noatime,discard' options.
I am using the recommended ext3 file system in Ubuntu 10.10.
402, are you using a different Linux build and ext4?
The options may be slightly different but very similar to what you list.
I also "followed" some recommendations on this thread, minus the ext4 portion:
http://www.howtogeek.com/62761/how-to-tweak-your-ssd-in-ubuntu-for-better-performance/
402blownstroker
[H]ard|DCer of the Month - Nov. 2012
- Joined
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Yeah. I am running Fedora 16 x86_64 with the ext4 filesystem. As you said Core32, it is similar for Ubuntu 10.10 as it still uses the ext3 filesystem.
Few items from me...
1. Always work from the options that are already there (don't change or remove them
  without a reason). Don't change numbers in 5th or 6th column unless you _really_
  know what you're doing
2. Since realtime has become the default using noatime is pretty much moot...
3. Background discards (mount option) aren't the smartest approach; very often discard is
  an exclusive (synchronous) operation (device-wise) -- in other words, it actually costs
  you performance when run in-line with the process of freeing the blocks.
  I'd recommend using foreground discards w/fstrim (ran daily or weekly from cron when
  machine isn't in use) instead.
General bottom line -- use defaults, add barrier=0 (per musky's Ubuntu 12.04 notes),
add fstrim. Enjoy.
1. Always work from the options that are already there (don't change or remove them
  without a reason). Don't change numbers in 5th or 6th column unless you _really_
  know what you're doing
2. Since realtime has become the default using noatime is pretty much moot...
3. Background discards (mount option) aren't the smartest approach; very often discard is
  an exclusive (synchronous) operation (device-wise) -- in other words, it actually costs
  you performance when run in-line with the process of freeing the blocks.
  I'd recommend using foreground discards w/fstrim (ran daily or weekly from cron when
  machine isn't in use) instead.
General bottom line -- use defaults, add barrier=0 (per musky's Ubuntu 12.04 notes),
add fstrim. Enjoy.
Last edited:
You really shouldn't need to do much - SSD's only suffer premature failure issues in write heavy environments which a 24/7 folding box is not. To be extra careful you can also only partition part of the drive - which leaves extra free space for the SSD's internal mechanisms to manage write loads.