John

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Hi Guys,

​I​ backup to an external USB drive for offsite backup. but ​"​computer says no​"​......

I have done this many​,​ many times before with same hardware, ​I'm​ currently on FreeNAS-11.0-RC4 (ccc181927)

​i am trying to send this data set (which is of course all my family photos!)​


datastore/photos                                               488G  1011G   488G  /mnt/datastore/photos

​I tried to think what would help you, help me, so here you go....​

​First i have cleared all snapshots​, shown as no results below

root@nas:~ # zfs list -H -o name -t snapshot | grep datastore\/photos

Then I create a snapshot, and check it exists
root@nas:~ # zfs snapshot -r datastore/photos@snap000
root@nas:~ # zfs list -H -o name -t snapshot | grep datastore\/photos
datastore/photos@snap000

T​hen i send the snapshot, and it coredumps....
root@nas:~ # zfs send -R datastore/photos@snap000 | zfs receive -Fduv one-tb-usb
receiving full stream of datastore/photos@snap000 into one-tb-usb/photos@snap000
internal error: Invalid argument
Abort (core dumped)

​The daily freenas email shows me these issues​


> swap_pager: indefinite wait buffer: bufobj: 0, blkno: 1048738, size: 28672
> pid 60212 (zfs), uid 0: exited on signal 6 (core dumped)


> swap_pager: indefinite wait buffer: bufobj: 0, blkno: 1048763, size: 20480
> pid 79705 (zfs), uid 0: exited on signal 6 (core dumped)


results after​;​

root@nas:~ # zfs list -H -o name -t snapshot | grep photos
datastore/photos@snap000
one-tb-usb/photos@snap000


​zpool status all looks ok;

root@nas:~ # zpool status
  pool: datastore
 state: ONLINE
  scan: scrub repaired 0 in 8h47m with 0 errors on Sun May  7 08:47:42 2017
config:

	NAME                                            STATE     READ WRITE CKSUM
	datastore                                       ONLINE       0     0     0
	  mirror-0                                      ONLINE       0     0     0
	    gptid/2a2cd67e-2fbc-4245-8f3d-3c85ac9f4e82  ONLINE       0     0     0
	    gptid/b4ad6a0a-a90e-1ee9-c7b0-f7623378fc5a  ONLINE       0     0     0
	  mirror-1                                      ONLINE       0     0     0
	    gptid/b2287aa6-c717-70c5-c188-c17c042a5e1a  ONLINE       0     0     0
	    gptid/d5eb5230-783f-754a-a3d7-f1f4dfa2e84e  ONLINE       0     0     0
	cache
	  gptid/6531f72f-0a36-11e7-9a65-002590d5384a    ONLINE       0     0     0

errors: No known data errors


​Thanks in advance
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