V2.1 - Enabling TRIM for SSD users

jeppe67 · Sep 17, 2013, 1:42 PM

It´s very simple to add TRIM to SSD disks now, it´s just hard to find out how in the first place.
Here´s what I did today:
Login with SSH and open the shell.
Run /usr/local/sbin/ufslabels.sh
Add the line ahci_load="YES" to /boot/loader.conf.local
reboot the machine
Login with SSH and open the shell
touch /root/TRIM_set; /etc/rc.reboot

Once the machine has rebooted check the status with: tunefs -p /
[2.1-RELEASE][admin@pfSense.hemma]/root(1): 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)

All done I guess

jasonlitka · Sep 17, 2013, 5:20 PM

@Sn3ak:

It's not sufficient to use the steps mentioned above. You also need to be using the ahci module, unless something changed in a later snap.

see: http://forum.pfsense.org/index.php/topic,63656.0.html
 add ahci_load="YES" to /boot/loader.conf.local 
See #20 for a way to convert you to ufslabels so that changing from ad* to ada* doesn't break your boot.
 
The AHCI module should be included in snapshots now (I just updated a VM and checked, it's there).

Also look at /usr/local/sbin/ufslabels.sh - that would eliminate the need to make any fstab edits.

Too late for 2.1 to grow an installer option for it, but perhaps for 2.2.

My tunefs shows trim enabled without anything but the command in the first post.

stan-qaz · Sep 17, 2013, 6:51 PM

I'm seeing the trim not enabled warning in my dmesg output.

I'm hesitant to break my pfSense box by poking at things I don't really understand and looking at the other topic I'm not seeing disk labels like they are discussing. Mine are /dev/ad12sla and /dev/ad12slb will the conversion script deal with these properly?

Adding to me hesitation, what impact will this have for the next update, will I have to find this info and make the changes again? If I do an update with this in place will it break my box?

Is enabling trim worth the risk of making these changes?

I really wish I had an SSD in my test box, that would be less scary than running these on my live system.

rjcrowder · Sep 17, 2013, 8:11 PM

Above steps worked fine for me… on two different boxes.

kejianshi · Sep 17, 2013, 8:52 PM

stan-qaz - I think it really depends on the SSD.

Oddly enough, if you get a 2008/2009ish SLC SSD which run about $50 on ebay, those work well without incident for me (so far) without TRIM.

If you get a 2010/2011ish MLC SSD without TRIM, you might get trouble in short order.

If you get a newer 2013ish small MLC SSD with a newer sandforce controller and newer highly durable garbage collection you again would probably be OK. (According to specs anyway)

In all scenarios with MLC, your are far better off with TRIM than without.

stan-qaz · Sep 18, 2013, 12:07 AM

I ran the command and got the following, the "swapoff invalid" argument is worrisome. I'm not feeling really confident so I did a backup of my original fstab in hopes that if I need it I can somehow replace it.

[2.1-RELEASE][root@pfsense.home]/root(6): /usr/local/sbin/ufslabels.sh                                                                                                          
FS: / on device ad12s1a with ufsid 50f89405e017f40f                                                                                                                             
FS: Swap on device ad12s1b                                                                                                                                                      
====================                                                                                                                                                            
Current fstab:                                                                                                                                                                  
# Device                Mountpoint      FStype  Options         Dump    Pass#                                                                                                   
/dev/ad12s1a            /               ufs     rw,noatime              1       1                                                                                               
/dev/ad12s1b            none            swap    sw              0       0                                                                                                       
====================                                                                                                                                                            
New fstab:                                                                                                                                                                      
# Device                Mountpoint      FStype  Options         Dump    Pass#                                                                                                   
/dev/ufsid/50f89405e017f40f             /               ufs     rw,noatime              1       1                                                                               
/dev/label/swap         none            swap    sw              0       0                                                                                                       
Commit changes? (y/n):                                                                                                                                                          
y                                                                                                                                                                               
Disabling swap to apply label                                                                                                                                                   
swapoff: /dev/ad12s1b: Invalid argument                                                                                                                                         
Applying label to swap parition                                                                                                                                                 
Activating new fstab                                                                                                                                                            
Re-enabling swap

Added the load module line and I'm going to reboot once I've downloaded the 2.1 boot CD.

stan-qaz · Sep 18, 2013, 12:55 AM

It seems to have worked, no obvious error messages. My dmesg output for the SSD is now looking like this:


ada0 at ahcich2 bus 0 scbus2 target 0 lun 0                                                                                                                                     
ada0: <m4-ct064m4ssd2 040h="">ATA-9 SATA 3.x device                                                                                                                               
ada0: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 8192bytes)                                                                                                                    
ada0: Command Queueing enabled                                                                                                                                                  
ada0: 61057MB (125045424 512 byte sectors: 16H 63S/T 16383C)</m4-ct064m4ssd2>

I'll print out a cheat sheet for this just in case. :-)

Taigar · Nov 16, 2013, 6:41 PM

@Sn3ak:

It's not sufficient to use the steps mentioned above. You also need to be using the ahci module, unless something changed in a later snap.

see: http://forum.pfsense.org/index.php/topic,63656.0.html
 add ahci_load="YES" to /boot/loader.conf.local 
See #20 for a way to convert you to ufslabels so that changing from ad* to ada* doesn't break your boot.
 
The AHCI module should be included in snapshots now (I just updated a VM and checked, it's there).

Also look at /usr/local/sbin/ufslabels.sh - that would eliminate the need to make any fstab edits.

Too late for 2.1 to grow an installer option for it, but perhaps for 2.2.

I don't know if I have to start a new topic, or can reply here.

I also am trying to enable TRIM, and tried the following steps

http://forum.pfsense.org/index.php/topic,63656.msg344604.html#msg344604

But I don't understand step 6.

When I reboot the system, I can choose to escape to loader prompt by pressing '7'

Is that correct or do I have to do something else?
Do I even need to do all those steps?

My motherboard is Supermicro X7SP-HF-D525 and I am using an Intel 320 series SSD.

MediocreFred · Dec 8, 2013, 7:30 PM

Thanks very much for consolidating all of the steps into one easily followable list! Worked perfectly!

@jeppe67:

It´s very simple to add TRIM to SSD disks now, it´s just hard to find out how in the first place.
Here´s what I did today:
Login with SSH and open the shell.
Run /usr/local/sbin/ufslabels.sh
Add the line ahci_load="YES" to /boot/loader.conf.local
reboot the machine
Login with SSH and open the shell
touch /root/TRIM_set; /etc/rc.reboot

Once the machine has rebooted check the status with: tunefs -p /
[2.1-RELEASE][admin@pfSense.hemma]/root(1): 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)

All done I guess

Ramosel · Feb 10, 2014, 1:52 AM

Had to go back and re-read some of these posts regarding "Trim" to answer a question for a friend.

Any chance this (TRIM_set) will become an advanced system setup checkbox on an upcoming release?? I mean SSDs are becoming "de rigueur" and the release of FreeBSD now being employed does support the Trim command. I'll ask nicely…. PLEASE?

edit: I'll be greedy while I'm asking... also have it be an installation setup option?

Rick

Hugovsky · Feb 25, 2014, 9:23 PM

@Jason:

@Sn3ak:
It's not sufficient to use the steps mentioned above. You also need to be using the ahci module, unless something changed in a later snap.

see: http://forum.pfsense.org/index.php/topic,63656.0.html
 add ahci_load="YES" to /boot/loader.conf.local 
See #20 for a way to convert you to ufslabels so that changing from ad* to ada* doesn't break your boot.
 
The AHCI module should be included in snapshots now (I just updated a VM and checked, it's there).

Also look at /usr/local/sbin/ufslabels.sh - that would eliminate the need to make any fstab edits.

Too late for 2.1 to grow an installer option for it, but perhaps for 2.2.
My tunefs shows trim enabled without anything but the command in the first post.

Exactly the same to me. Disk used:

Model Family: SandForce Driven SSDs
Device Model: KINGSTON SV300S37A60G

2.1-RELEASE (amd64)
built on Wed Sep 11 18:17:34 EDT 2013
FreeBSD 8.3-RELEASE-p11

Platform: nanobsd (4g)

jideel · Apr 4, 2014, 2:54 PM

Hello,
I managed to enable TRIM on a Samsung 840 Pro SSD, but not so simply.
The appliance used is a Teak 5020. By default AHCI is not enabled in the bios, and i used ufslabels.sh before enabling AHCI in the bios.
After, ufsid was set but the TRIM_set trick was not working.
I enabled AHCI, rebooted, then after started in single user mode, issued '/sbin/mount', and then "/sbin/tunefs -t enable /dev/ufsid/533f10e87e412553" (adapt with your own ufsid).
Then "./tunefs -p /" returns well "tunefs: trim: (-t) enabled".
However "camcontrol identity ada0" does not show that TRIM is enabled :
"data set management (TRIM) yes [empty]"
Any idea ?
Thank you

cfipilot · Jul 2, 2014, 3:54 AM

I also have a samsung SSD and i cant enable trim. Using the latest pfsense 2.1.4

Please help

stephenw10 · Jul 2, 2014, 4:34 AM

What have you tried? What was the result? What board is it connected to?

Steve

cfipilot · Jul 2, 2014, 5:50 AM

added the following

Login with SSH or locally and open a shell
Run /usr/local/sbin/ufslabels.sh
Add ahci_load="YES" to /boot/loader.conf.local
Reboot

touch /root/TRIM_set; /etc/rc.reboot

When i try to boot in single user mode i get a kernel panic.

Hardware
Supermicro SuperServer 5018A-FTN4 with 16GB ECC ram.
Samsung pro 120GB SSD.

pfsense 2.1.4

stephenw10 · Jul 2, 2014, 8:01 PM

Did you set the SATA controller to AHCI mode in the BIOS?

Steve

zimba · Jul 3, 2014, 1:21 AM

You may try this instead in single user mode:

/sbin/tunefs -t enable /

After that reboot and then run tunefs -p /

The touch /root/TRIM_set; /etc/rc.reboot has been removed in the newer version.

arrmo · Jul 6, 2014, 12:49 AM

Hi,

Took a look, and it does seem that this allows enabling TRIM - that's great. But I do have a couple questions,

is there a way to check what the current state is?
if TRIM hasn't been on so far, is there a way to tell the SSD / BIOS to clean up the SSD?

Thanks!

3vian · Jul 22, 2014, 3:21 PM

@cfipilot:

added the following

Login with SSH or locally and open a shell
Run /usr/local/sbin/ufslabels.sh
Add ahci_load="YES" to /boot/loader.conf.local
Reboot

touch /root/TRIM_set; /etc/rc.reboot

When i try to boot in single user mode i get a kernel panic.

Hardware
Supermicro SuperServer 5018A-FTN4 with 16GB ECC ram.
Samsung pro 120GB SSD.

pfsense 2.1.4

cfipilot - have you been able to get TRIM working? I have pretty much the same hardware except only using 8GB ECC RAM for now. I have a Samsung 840 Pro 120GB, is that what you are using?

I wrote in another thread which was a bit newer (dealing with 2.1.1 as opposed to 2.1), but maybe the issue is hardware specific or it could just be my lack of FreeBSD knowledge…

@3vian:

I seem to have a problem with the TRIM enabled setting remaining after reboot.

Once I executed /sbin/tunefs -t enable / what exactly should I do. I can't run /etc/rc.reboot because I get the following:
lockf: cannot open /tmp/config.lock: Read-only file system
Cannot reboot at this moment, a config write operation is in progress, and 30 seconds have passed
If I just exit single-user mode then when restart and /sbin/tunefs -t enable / it indicates it is disabled.

FYI - already added ahci_load="YES" to /boot/load.conf.local

3vian

3vian · Jul 23, 2014, 9:06 AM

cfipilot - Btw, I managed to get it enable. See below.

@3vian:

Seems you have to use /sbin/reboot as mentioned below to reboot

FYI - it should /sbin/tunefs -t enable /, not /sbin/tunefs -t / as mentioned below.

@spid:

@dstephens80:

Charlie,

I will give v2.2 a try and let you know how it goes. As far as dmesg, I can provide nothing as the system will not boot with AHCI enabled. it will not detect any GEOM devices, but it will boot fine if I remove the ahci_load="YES" from /boot/loader.conf.local.

Did you convert fstab to ufslabel before adding ahci_load="YES" ?

Run the following script to do it:
/usr/local/sbin/ufslabels.sh

then if it boots correctly go in single user mode and enable TRIM with:
/sbin/tunefs -t /

reboot with:
/sbin/reboot

and after a reboot check if it's enabled with:
tunefs -p /