[Xen-API] Storage Repository FileSR on ZFS won't work - Linux

[Dawid Kowalski <dkadds2@xxxxxxxxx>]

Hi Guys,

Just wanted to report that file based Storage Repository won't work on 
Linux systems as td-util is required O_DIRECT when creating image file 
not supported on ZFS (Linux).
When creating vm, i.e. vm-import it calls td-util similar to below:
td-util create vhd 2048 /path/to/file

Strace shows:
open("/path/to/file", O_WRONLY|O_CREAT|O_TRUNC|O_DIRECT, 0644) = -1 
EINVAL (Invalid argument)
I'll try to patch td.c to skip O_DIRECT flag but this is rather dirty 
hack than proper solution of the problem.
Regards,
Dawid

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