DS 211 J : Terribly slow file copy performances (30MB/s) on Gb link

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kenaddams42
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DS 211 J : Terribly slow file copy performances (30MB/s) on Gb link

Unread post by kenaddams42 » Fri Aug 10, 2018 3:34 pm

Hi !

I have terribly slow file copy / move performances with my synology DS211J through Smbd.

I didn't mentioned it in the beginning, because I was connected to my NAS through Wifi. I thought poor performances were due to the wifi network.

Recently I installed a local network at home (Grade 3S). Transfer speed between my laptop and a desktop are pretty good (100 MB / s) compared to transfer speed between my Syno and anything else (15 to 20MB / s).

My NAS interface speed is 1000Mb. Same for my desktop.

When my 2Gb file copy starts, smbd usage raises up to 60% and CPU usage is almost 100%. *ALL* other services (backup ; download ; cloud ; ...) have been disabled to ensure they are not responsible for these terribly poor performances.

As DJ211J is sold with Gigabit connection, I suppose the CPU is sized to handle such speed ?

So, what could be wrong in my NAS ?

Thank you for your help,
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Rusty1281
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Re: DS 211 J : Terribly slow file copy performances (30MB/s) on Gb link

Unread post by Rusty1281 » Fri Aug 10, 2018 9:14 pm

What DSM version are you running on that 211j? If its anythin after 4.3 you will have performance impact. Revert back to 4.3 and you will get back to 90MB+ range
Synology DS918+ (4x4TB WD RED - RAID 5 with 2x250GB 960EVO NVMe) | Synology DS412+ (4x3TB WD RED - RAID 5) | RT1900AC

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eaz
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Re: DS 211 J : Terribly slow file copy performances (30MB/s) on Gb link

Unread post by eaz » Fri Aug 10, 2018 9:17 pm

We are talking about an 8 y old j type.

This is what is is, from 2010 on:

https://www.bit-tech.net/reviews/tech/s ... -review/2/
Please share if a reply was useful or how the issue was solved, it helps other DS users.

DS415+ (4TB HGST+ 4TB Seagate raid1 + 2*480GB SSD raid1), DS212+ (2*WD red 2TB), previous DS411J, DS106

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