V2.1 - Enabling TRIM for SSD users

jideel

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

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

Please help

stephenw10

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

Steve

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

stephenw10

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

Steve

zimba

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

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

@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

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 /

arrmo

Hi,

Sorry, trying this on v2.2, not sure if I'm doing something wrong, but here is what I get …
Entered: tunefs -t enable /

Then the result is ...
tunefs: issue TRIM to the disk set
tunefs: /: failed to write superblock

And checking tunefs (tunefs -p /) ... nope, it's still off. Thoughts?

Thanks!

3vian

@arrmo:

Hi,

Sorry, trying this on v2.2, not sure if I'm doing something wrong, but here is what I get …
Entered: tunefs -t enable /

Then the result is ...
tunefs: issue TRIM to the disk set
tunefs: /: failed to write superblock

And checking tunefs (tunefs -p /) ... nope, it's still off. Thoughts?

Thanks!

arrmo - It sounds like you are not in Single User Mode. Reboot and at the boot screen use option 5 and enter /sbin/tunefs -t enable / at the prompt and reboot (using /sbin/reboot).

3vian

arrmo

Will do, thanks! Saw that part, wasn't sure if it was key … seems it is ... ;)

This setting is permanent (when done this way), right?

Thanks again.

eSpezi

Hi Everybody,

I also have the 5018A-FTN4 with a SSD and would like to turn on TRIM.
Unfortunately I am not able to enter the Single User Mode to turn it on, as it gives me a
panic: AP #1 (PHY# 2) failed!

@3vian: You seem to have gotten it to work. How did you manage to get into the Single User Mode?

It would also be very handy to start a "best practices for installing pfSense on a 5018A-FTN4 thread", as they seem to become very popular, with all the relevant BIOS settings.
Some pfSense tweaks are already mentioned here: https://forum.pfsense.org/index.php?topic=75015.0

As always: thank you very much for any info!
Harry

kejianshi

Just imagine the day when there is a simple check box for "Enable Trim" in a system menu…

Alot to ask, I know but we can dream right?

Synthetickiller

@3vian:

@arrmo:

Hi,

Sorry, trying this on v2.2, not sure if I'm doing something wrong, but here is what I get …
Entered: tunefs -t enable /

Then the result is ...
tunefs: issue TRIM to the disk set
tunefs: /: failed to write superblock

And checking tunefs (tunefs -p /) ... nope, it's still off. Thoughts?

Thanks!

arrmo - It sounds like you are not in Single User Mode. Reboot and at the boot screen use option 5 and enter /sbin/tunefs -t enable / at the prompt and reboot (using /sbin/reboot).

3vian

I appreciate this post.

I came into all of this being a n00b w/ command line, so if I overlooked something simple, be gentle.

I've tried everything & can't seem to get anything working.

Here's what I've done after upgrading to 2.1.5 (SSD is an intel 320 160gb, has TRIM):

1. Logged in as single user (selected 5), but there seems to be a slight issue with the mount & asking me to specify a path while booting. I can provide that info later on. Anyways, I tell it to skip that & it loads up pfsense perfectly, everything works. Loads fine with multi-user.

2. Input what you said & got this:

[2.1.5-RELEASE][root@pfsense.router]/root(10): /sbin/tunefs -t enable /
tunefs: issue TRIM to the disk set
tunefs: /dev/ufsid/53f426d4c691b578: failed to write superblock

I can log in as root or admin & I get the same response. Other responses to things I've tried from this thread include "bad trim" & one other statement I forgot to write down.

I'm tempted to reinstall from scratch as it doesn't take that long to do & try again. I've been down that road, but I wonder if going back to a pre "/usr/local/sbin/ufslabels.sh" point in time may help as that seems to change the characteristics of the drive.

Also, this line always trips me up: ahci_load="YES" to /boot/loader.conf.local

[2.1.5-RELEASE][root@pfsense.router]/root(33): /boot/loader.conf.local ahci_load="Yes"
/boot/loader.conf.local: Permission denied.

Thoughts?

stephenw10

That's not something you run at the command line. You have to add the line:
ahci_load="YES"
to the file /boot/loader.conf.local
You can do the using the webgui in Diagnosics: Edit File: or from the command line using the built in ee editor (or vi if you're a masochist!).

Steve