NuKVM/libvirt
3
0
Fork 0
mirror of https://github.com/libvirt/libvirt.git synced 2026-08-13 06:34:42 -05:00
Code Issues Packages Projects Releases Wiki Activity

virsh-volume: add support for --reflink

Browse Source 
Add support for --reflink to the virsh 'vol-create-from' and 'vol-clone'
commands to signify usage of the VIR_STORAGE_VOL_CREATE_REFLINK flag in the
ensuing virStorageVolCreateXMLFrom API call.

Updated the man page to describe the new flag.

Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
This commit is contained in:
Chen Hanxiao
2015-02-03 11:37:30 -05:00
committed by John Ferlan
parent 47dd6c4335
commit 219ea41d8d
2 changed files with 24 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tools/virsh.pod
+8 -1
View File
@@ -3160,6 +3160,7 @@ B<Example>
=item B<vol-create-from> I<pool-or-uuid> I<FILE> [I<--inputpool>
I<pool-or-uuid>] I<vol-name-or-key-or-path> [I<--prealloc-metadata>]
[I<--reflink>]
Create a volume, using another volume as input.
I<pool-or-uuid> is the name or UUID of the storage pool to create the volume in.
@@ -3171,6 +3172,9 @@ I<vol-name-or-key-or-path> is the name or key or path of the source volume.
support full allocation). This option creates a sparse image file with metadata,
resulting in higher performance compared to images with no preallocation and
only slightly higher initial disk space usage.
When I<--reflink> is specified, perform a COW lightweight copy,
where the data blocks are copied only when modified.
If this is not possible, the copy fails.
=item B<vol-create-as> I<pool-or-uuid> I<name> I<capacity>
[I<--allocation> I<size>] [I<--format> I<string>] [I<--backing-vol>
@@ -3205,7 +3209,7 @@ resulting in higher performance compared to images with no preallocation and
only slightly higher initial disk space usage.
=item B<vol-clone> [I<--pool> I<pool-or-uuid>] I<vol-name-or-key-or-path>
I<name> [I<--prealloc-metadata>]
I<name> [I<--prealloc-metadata>] [I<--reflink>]
Clone an existing volume. Less powerful, but easier to type, version of
B<vol-create-from>.
@@ -3217,6 +3221,9 @@ I<name> is the name of the new volume.
support full allocation). This option creates a sparse image file with metadata,
resulting in higher performance compared to images with no preallocation and
only slightly higher initial disk space usage.
When I<--reflink> is specified, perform a COW lightweight copy,
where the data blocks are copied only when modified.
If this is not possible, the copy fails.
=item B<vol-delete> [I<--pool> I<pool-or-uuid>] I<vol-name-or-key-or-path>