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qemu-img convert: use cache=none for ZFS only

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since this requires O_DIRECT support by the underlying storage, which
might not be available.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler 2018-03-26 10:15:51 +02:00 committed by Thomas Lamprecht
parent 2715f95970
commit d494009179
1 changed files with 2 additions and 1 deletions
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PVE/QemuServer.pm
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@ -6146,7 +6146,8 @@ sub qemu_img_convert {
my $cmd = [];
push @$cmd, '/usr/bin/qemu-img', 'convert', '-p', '-n';
push @$cmd, '-s', $snapname if($snapname && $src_format eq "qcow2");
push @$cmd, '-t', 'none', '-T', 'none';
push @$cmd, '-t', 'none' if $dst_scfg->{type} eq 'zfspool';
push @$cmd, '-T', 'none' if $src_scfg->{type} eq 'zfspool';
push @$cmd, '-f', $src_format, '-O', $dst_format, $src_path;
if ($is_zero_initialized) {
push @$cmd, "zeroinit:$dst_path";