Extraordinary SLOW performance on ReadyNAS NV+

vandermerwe wrote:
What firmware are you running ?

Radiator 4.1.13

Have you hooked up a USB disk to the nv+ and setup a backup job to it? If so, what is the speed like?

No. Would this be a good thing to do?

You have tried different ethernet cables?

All brand new cat6 - bought them 2 days ago.

I realise you have tried many lan configurations, but have you connected PC to NAS through the switch?

direct connection and through a switch. Brand new GB switch, bought it with the cables.

Also you do not have jumbo frames enabled hopefully?

No jumbo frames - wise to that one.

Have you done a memory test?

Not yet. Will it be diagnostic? Is the memory removable?

Have you done an OS reinstall, perhaps try this when you have backed up the data.

Definitely - when I get through the recovery. If I get the data off, then fixing the NV+ is of academic interest to me only. I'm quite happy to bin it and get a better one. What I need now is an expedient means of successfully recovering the data, preferably something that is not going to consume the next fortnight.

The disks would only be transferable into another nv+, not into any other readynas device.

Yes, I figured that from reading hundreds of posts. My real question is "can I mount the disks on a Linux machine" and if so, how should I go about it. My Linux skills are ordinary - I work with embedded controllers and all my tools are Windows based, so I don't get much practice with Linux.

Sounds like a nic card or other network problem. You say the NAS is quite new, how new?

NAS - 18 months old but much of that time it is switched off. Originally had only 2 drives and 2 more added later. 2 drives have 3441 POH and other 2 have 10060 POH. None are showing any read or write errors.
NIC is fine. The problems are unchanged regardless of the NIC used - Laptop LAN, Laptop wireless, Desktop LAN, wifes Laptop Wireless. Direct connections eliminate the router. New cables and switch eliminate the rest.