slow performance on my TVS-871

[sciack]

Hello people,

I would need some help from you if possible. I have a TVS-871 (I know a bit old it is)... it has always worked well... to be honest I never checked the performance because at the time when I set it all up (few years ago) I needed only the space not the performance. Now I am into high res music files and performance is more important. Anyway, the problem is that when I transfer file from/to the NAS via SMB or AFP from/to my Macbook Pro on my LAN, which is a super fast network running on 802ax protocol, I have slow performance like 60/80 MB/s using Blackmagic Speed Test for example. The HDD's are about 200 MB / s and the RAID about 600 MB/s I can't figure out what's the problem. The NAS is connected directly to my router via 1 GB port. I tried also 2 ports with port trunking but still there is no improvement in performance.

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[~] # qcli_storage -t
fio test command for LV layer: /sbin/fio --filename=test_device --direct=0 --rw=read --bs=1M --runtime=15 --name=test-read --ioengine=libaio --iodepth=32 &>/tmp/qcli_storage.log
fio test command for File system: /sbin/fio --filename=test_device/qcli_storage --direct=0 --rw=read --bs=1M --runtime=15 --name=test-read --ioengine=libaio --iodepth=32 --size=128m &>/tmp/qcli_storage.log
Start testing!
Performance test is finished 100.000%...
VolID   VolName             Pool     Mapping_Name            Throughput      Mount_Path                    FS_Throughput
1       Downloads           1        /dev/mapper/cachedev2   300.98 MB/s     /share/CACHEDEV2_DATA         250.98 MB/s
2       DataVol1            2        /dev/mapper/cachedev3   798.64 MB/s     /share/CACHEDEV3_DATA         603.77 MB/s

Code: Select all

[~] # qcli_storage -T
fio test command for physical disk: /sbin/fio --filename=test_device --direct=1 --rw=read --bs=1M --runtime=15 --name=test-read --ioengine=libaio --iodepth=32 &>/tmp/qcli_storage.log
fio test command for RAID: /sbin/fio --filename=test_device --direct=0 --rw=read --bs=1M --runtime=15 --name=test-read --ioengine=libaio --iodepth=32 &>/tmp/qcli_storage.log
Start testing!
Performance test is finished 100.000%...
Enclosure  Port  Sys_Name          Throughput    RAID        RAID_Type    RAID_Throughput   Pool  
NAS_HOST   1     /dev/sda          527.12 MB/s   --          --           --                --    
NAS_HOST   2     /dev/sdb          203.13 MB/s   /dev/md1    RAID 6       649.85 MB/s       2     
NAS_HOST   3     /dev/sdc          200.15 MB/s   /dev/md1    RAID 6       649.85 MB/s       2     
NAS_HOST   4     /dev/sdd          197.94 MB/s   /dev/md1    RAID 6       649.85 MB/s       2     
NAS_HOST   5     /dev/sdg          202.18 MB/s   /dev/md1    RAID 6       649.85 MB/s       2     
NAS_HOST   6     /dev/sdh          198.67 MB/s   /dev/md1    RAID 6       649.85 MB/s       2     
NAS_HOST   7     /dev/sde          197.50 MB/s   /dev/md1    RAID 6       649.85 MB/s       2     
NAS_HOST   8     /dev/sdf          201.67 MB/s   /dev/md1    RAID 6       649.85 MB/s       2     
EXDR#1     1     /dev/sdj          170.77 MB/s   /dev/md2    RAID 6       296.21 MB/s       1     
EXDR#1     2     /dev/sdm          170.06 MB/s   /dev/md2    RAID 6       296.21 MB/s       1     
EXDR#1     3     /dev/sdn          168.73 MB/s   /dev/md2    RAID 6       296.21 MB/s       1     
EXDR#1     4     /dev/sdk          214.12 MB/s   /dev/md2    RAID 6       296.21 MB/s       1     
EXDR#1     5     /dev/sdl          166.00 MB/s   /dev/md2    RAID 6       296.21 MB/s       1    

please help, thank you

[OneCD]

The NAS is connected directly to my router via 1 GB port.

There's the issue: your bottleneck is 1Gb/s. So, your current config only allows for slightly higher speed than you're getting now.

What speed were you expecting to see?

[sciack]

The NAS is connected directly to my router via 1 GB port.

There's the issue: your bottleneck is 1Gb/s. So, your current config only allows for slightly higher speed than you're getting now.

What speed were you expecting to see?

well 1 gigabit is 125 megabytes / s I'm getting 80 if I'm lucky

I ordered also a 10GBE card I will try also that route... still I could get to 100 mb / s at least...

[OneCD]

well 1 gigabit is 125 megabytes / s I'm getting 80 if I'm lucky

125MB/s is the theoretical raw throughput limit - nobody actually gets that in real life (unless you're a network engineer in a laboratory using a tuned configuration).

After allowing for protocol overhead, retries and such, 115MB/s is about the limit for 1GbE.

I ordered also a 10GBE card I will try also that route... still I could get to 100 mb / s at least...

100MB/s might be possible with your existing hardware. Can you try your tests over NFS instead? It's a quicker protocol than SMB.

[sciack]

well 1 gigabit is 125 megabytes / s I'm getting 80 if I'm lucky

125MB/s is the theoretical raw throughput limit - nobody actually gets that in real life (unless you're a network engineer in a laboratory using a tuned configuration).

After allowing for protocol overhead, retries and such, 115MB/s is about the limit for 1GbE.

I ordered also a 10GBE card I will try also that route... still I could get to 100 mb / s at least...

100MB/s might be possible with your existing hardware. Can you try your tests over NFS instead? It's a quicker protocol than SMB.

to my knowledge samba 3 is the best anyway I tried NFS and I get the same results

I checked also my ethernet cables they are good ones.

[OneCD]

If you have an Ethernet adapter for your MacBook Pro, can you connect directly to the NAS via cable (with nothing else connected) then retry your speed test?

[sciack]

that's a good idea... i need to find my ethernet dongle...