NAS becomes unavailable when under load

[n31k]

Hi,

 

so I managed to get all up and working and how have DSM 5.2-5967 (DS3615xs) with 3x WD RED 3TB in SHR.

Everything works quite fine except the NAS becomes unavailable (web, share, SSH - nothing can be accessed)

when some "major" disk operations are ongoing. This means copy of hundreds of GBs of data (from previous NAS)

or even when download is around 10MB/s. Also extracting "big" archives (tens of GBs).

Long time short when there is high write rate.

 

Any advice on what can cause this would be more than helpful.

Already did tests for all 3 drives (SMART, bad sectors) and they are fine.

I can post anything that helps - HW config, logs etc.

 

Thanks

[sbv3000]

have you looked at Resource Monitor to check the memory/cpu/volume/disk performance?

It sounds like you have a 'disk bottleneck'

You could check the BIOS SATA settings to see if they are IDE or AHCI or SATA3 etc

[n31k]

That's the thing, since I can't log in I can't check those and as far as I am aware there is no history to check it after reboot.

Good idea with that BIOS settings, will check it out and post results.