Import disk speed is only 10m/s

[vito]

Version:
FreeNAS-11.3-U3.2
Model:
Intel(R) Xeon(R) CPU E3-1220 v6 @ 3.00GHz
Asus p10s-v
Physical Memory:
16272 MiB
Disk
wd ST8000VN0022-2 8T x 4 raidz2

I am migrating data from centos to freenas, the efficiency of raidz2 seems to be very slow

I tried nfs mount, using rsync transmission at the beginning, the transmission speed will be 30m/s, but when the memory is exhausted, the speed drops to 10m/s and continues at this speed

I removed my disk from centos and placed it in freenas to use the disk import function. The average transmission is also about 10m/s.

How should I find the problem?

Code:

root@freenas[/mnt/data/test]# dd if=/dev/zero of=./abc bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 92.531133 secs (11604114 bytes/sec)

 

[Samuel Tai]

Is the storage controller configured in AHCI or RAID mode?

 

[vito]

Is the storage controller configured in AHCI or RAID mode?

AHCI mode

 

[Samuel Tai]

What does smartctl -i /dev/adax, where x=2-5, show? Those drives are capable of much faster, but I wonder if there's a BIOS interaction where they're not in UDMA, and have negotiated down to the lowest PIO mode.

 

[vito]

What does smartctl -i /dev/adax, where x=2-5, show? Those drives are capable of much faster, but I wonder if there's a BIOS interaction where they're not in UDMA, and have negotiated down to the lowest PIO mode.

The information is as follows, thank you for your help! !

 

[Samuel Tai]

Digging around in Asus forums, Amazon reviews, and reddits, I found hints the audio subsystem may be hogging the PCI-E bus. Try disabling the audio subsystem.

 

[vito]

Digging around in Asus forums, Amazon reviews, and reddits, I found hints the audio subsystem may be hogging the PCI-E bus. Try disabling the audio subsystem.

Hi~~I tried what you said, the situation is profitable but the transmission speed is still very slow。。。

 

[vito]

Hi~~I tried what you said, the situation is profitable but the transmission speed is still very slow。。。

After writing continuously for two hours, the speed will still drop below 10m/s

 

[Samuel Tai]

Actually, that's as fast as your drives can go. The graphs are in MiB/s. 10 MiB/s = 83.8 Mbps.

 

[vito]

Actually, that's as fast as your drives can go. The graphs are in MiB/s. 10 MiB/s = 83.8 Mbps.

In fact, I tested that the transmission speed of samba on the LAN can reach gigabit, so I think there must be a problem, but I don't know where the problem is.

 

[Samuel Tai]

What NFS mount options are you using?