Return to Answer

I have just experienced this problem on OS X 10.9.5; I had set up Time Machine with a new destination volume, and it backed up normally for three days. Then I got errors pretty much identical to yours on every backup attempt.

I found that I also couldn't create files on the backup destination volume via Finder or terminal. The error message in terminal was "xyz: invalid argument" where xyz was a file I was trying to create via touch or echo.

The permissions on the volume looked normal, so I decided to give the OS a fresh look at the volume by ejecting it (had to force eject), then remounting via Disk Utility. After that Time Machine completed a backup successfully.

i have just experienced this problem on OS X 10.9.5; i had set up Time Machine with a new destination volume, and it backed up normally for three days; then i got errors pretty much identical to yours on every backup attempt

i found that i also couldn't create files on the backup destination volume via Finder or Terminal; the error message in terminal was "xyz: invalid argument" where xyz was a file i was trying to create via touch or echo

the permissions on the volume looked normal, so i decided to give the OS a fresh look at the volume by ejecting it (had to force eject), then remounting via Disk Utility; after that Time Machine completed a backup successfully

i have just experienced this problem on OS X 10.9.5; i had set up Time Machine with a new destination volume, and it backed up normally for three days, then i got errors pretty much identical to yours on every backup attempt

i found that i also couldn't create files on the backup destination volume via Finder or terminal; the error message in terminal was "xyz: invalid argument" where xyz was a file i was trying to create via touch or echo

the permissions on the volume looked normal, so i decided to give the OS a fresh look at the volume by ejecting it (had to force eject), then remounting via Disk Utility; after that Time Machine completed a backup successfully

[written in my voice]

I have just experienced this problem on OS X 10.9.5; I had set up Time Machine with a new destination volume, and it backed up normally for three days. Then I got errors pretty much identical to yours on every backup attempt.

I found that I also couldn't create files on the backup destination volume via Finder or terminal. The error message in terminal was "xyz: invalid argument" where xyz was a file I was trying to create via touch or echo.

The permissions on the volume looked normal, so I decided to give the OS a fresh look at the volume by ejecting it (had to force eject), then remounting via Disk Utility. After that Time Machine completed a backup successfully.

i have just experienced this problem on OS X 10.9.5; i had set up Time Machine with a new destination volume, and it backed up normally for three days, then i got errors pretty much identical to yours on every backup attempt

i found that i also couldn't create files on the backup destination volume via Finder or terminal; the error message in terminal was "xyz: invalid argument" where xyz was a file i was trying to create via touch or echo

the permissions on the volume looked normal, so i decided to give the OS a fresh look at the volume by ejecting it (had to force eject), then remounting via Disk Utility; after that Time Machine completed a backup successfully

i have just experienced this problem on OS X 10.9.5; i had set up Time Machine with a new destination volume, and it backed up normally for three days, then i got errors pretty much identical to yours on every backup attempt

i found that i also couldn't create files on the backup destination volume via Finder or terminal; the error message in terminal was "xyz: invalid argument" where xyz was a file i was trying to create via touch or echo

the permissions on the volume looked normal, so i decided to give the OS a fresh look at the volume by ejecting it (had to force eject), then remounting via Disk Utility; after that Time Machine completed a backup successfully

[written in my voice]