[Dynamix - V6 Plugins]

On 20/1/2018 at 9:00 AM, palmio said:

fstrim error

/sbin/fstrim -v /mnt/cache
gives me:
fstrim: /mnt/cache: FITRIM ioctl failed: Remote I/O error

Any suggestions?
I have never had focus on TRIM before, so I do not know if it has always been an issue or it's from the recent unraid update (like rjorgenson writes about)

Running: unRAID v6.4.0
Cache: 2x Samsung 840 SSD
HBA: Flashed LSI SAS2008-8I (9211-8i)

My problem is really about stalling file transfers, but since it's only when dumping data to unraid, not when reading it back, i suspect TRIM to be the issue.
Only get 30MB/sec transfers (writes) with lots of breaks and retries, but 100MB/sec read and have previously had 100MB/sec writes as well. (FTP on 1Gbit network)

Someone suggested that my Controllers probably did not support TRIM, and that I should move the cache-drives to be directly connected to my motherboard.
I did that today, and ran TRIM with success

HUGE HUGE difference in transfers now.
Before a simple File Transfer using FTP would stall after a few seconds, sometimes to the extent that FTP did a timeout and the transfer had to be resumed, giving me annoying prompts about overwriting and sh**

Just did a 200 GB transfer with minimal stalls (all less than 4 seconds)
(probably Network Buffer -> SSD cache transfers)

My point: if you are using SSD as cache, you need to use TRIM, it really makes a big difference.
I am very happy.

Connect the cache drives directly to the motherboard if possible
(I did not do any preparation or anything, just unplugged the drives and connected them directly to MB and unraid found them without me doing any configuration)

 

BTW: I am now running v6.4.1 (no trim issues from command prompt)

My system:
X99 MB in Norco 4224 cabinet, Intel i7, 64GB DDR4
4x 500GB Samsung SSD
14x 8TB Western Digital Gold / Seagate Ironwolf

[Dynamix - V6 Plugins]

fstrim error

/sbin/fstrim -v /mnt/cache
gives me:
fstrim: /mnt/cache: FITRIM ioctl failed: Remote I/O error

Any suggestions?
I have never had focus on TRIM before, so I do not know if it has always been an issue or it's from the recent unraid update (like rjorgenson writes about)

Running: unRAID v6.4.0
Cache: 2x Samsung 840 SSD
HBA: Flashed LSI SAS2008-8I (9211-8i)

My problem is really about stalling file transfers, but since it's only when dumping data to unraid, not when reading it back, i suspect TRIM to be the issue.
Only get 30MB/sec transfers (writes) with lots of breaks and retries, but 100MB/sec read and have previously had 100MB/sec writes as well. (FTP on 1Gbit network)

[Dynamix - V6 Plugins]

2 hours ago, mbc0 said:

How do you get the stats tab?

It's made by Dynamix System Statistics. You can set in it's settings if it should be a TAB or not.
 

[Dynamix - V6 Plugins]

diagnostics-zip added to the post.
Also noticed that it actually writes the correct total for 1/2 second after reload, then changes the value.

[Dynamix - V6 Plugins]

Dynamix System Statistics
v2017.10.02b

Does anyone know why my Total Space Used only amounts to 42TB when there is 6 drives of 8 TB full (+2TB on drive 22)
Did not notice until now, that 6 * 8 is more than 42   it should say 50 TB used

The total array size is correct

When I reload the STATS page, it shortly writes 50 TB, but right away it changes to 42 TB, and then the green "progress-bar" from the top, starts to animate to it's position. (using Firefox) (Chrome does the same)

unraid-diagnostics-20171216-1228.zip