ONTAP Discussions

VOLCOPY: Could not connect to filer

RICHARDDU
5,890 Views

Hi,

Thanks is advance for your help.

I'm trying to volcopy from one filer to another using the following command

vol copy start sourcefiler:source_vol targetfiler:dest_vol

when I run the above command the following output is shown:

Cannot retreive the IPv6 address for the filer gb-ss02

This can be a long-running operation. Use Control - C (^C) to interrupt.

Copy Volume: source_vol on machine SOURCEFILER_IP to Volume: dest_vol

Then after 20- 30 seconds the following output is show:

VOLCOPY: Could not connect to filer SOURCEFILER_IP.

VOLCOPY: Cannot Init Input, aborting

I have added both filers into the '/etc/hosts.equiv' of each filer.

Not sure where to go from here, so any help would be great.

Thanks,

Richard

12 REPLIES 12

scottgelb
5,850 Views

-S before sourcefiler

RICHARDDU
5,850 Views

Thank You for your quick answer but It had the same result.

scottgelb
5,850 Views

Are you running the copy on the target systems?

RICHARDDU
5,850 Views

I was running it on the source filer

but i tried the command on the target filer

vol copy start Source_Filer:Source_Vol Destination_Vol

I get the following result

Source_Filer: Connection refused

VOLCOPY: Could not connect to filer Source_Filer.

VOLCOPY: Cannot Init Input, aborting

Seems to be some sort of access issue?

scottgelb
5,850 Views

has to be authentication... if you enable rsh "options rsh.enable on" on both controllers then run the command does it work?  Disable rsh when done.

RICHARDDU
5,850 Views

Yes tht was the problem. Thank you

now there is another issue...

Incompatible snap mirror or copy source version. Aborting

I looked it up

Cause

The tape contained an incompatible backup image. The backup image I generated from a newer version of data ontap.

Corrective action

Use the correct ontap version to restore the backup image

Is this the end of the line or is there a workaround?

scottgelb
5,850 Views

What ontap versions are on each system?

Sent from my iPhone 4S

RICHARDDU
5,850 Views

Source filer is 8.1RC2

Target is 7.3.5.1p3

aborzenkov
5,850 Views

That won’t work. vol copy is block-for-block copy and requires target version to be the same (or possibly higher).

User ndmpcopy instead. It won’t preserve existing snapshots though.

RICHARDDU
4,598 Views

Ok I managed to get this running I transferred files from the lower ontap to the higher and it worked fine thank you for your help.

The destination had a slightly higher byte count after the copy.

It was 57344 bytes higher on the target, which is

Minimal but I just like to know if this is normal?

I see some new files eg .vtoc_internal but these are 0bytes.

scottgelb
4,598 Views

Same rules as snapmirror and same as a snapmirror initialize for vol copy.

Should be fine. Volume table of contents. All snapshots should be there too if you used -S

Sent from my iPhone 4S

RICHARDDU
4,598 Views

Thank you for your help it's worked perfectly. 🙂

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