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# Date Author Comment
c31ec06b 06/28/2013 03:38 pm Bernardo Dal Seno

Don't exceed the standard PV size when growing a disk

With exclusive storage, PVs are supposed to be used only up to the
standard PV size.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Klaus Aehlig <>
be9150ea 06/28/2013 03:38 pm Bernardo Dal Seno

Limit the PVs used for disk growth with exclusive storage

The exclusive storage flag is passed along in the backend functions for
disk growth. LVM volumes handles the flag by reusing the same PVs, as disks
are constrained by the number of their spindles....
a1860404 06/07/2013 04:10 pm Bernardo Dal Seno

node_info RPC reports info about free spindles

node_info RPC can be used to get information about free/total spindles.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Klaus Aehlig <>
577edf04 05/28/2013 12:46 pm Bernardo Dal Seno

Adapt striping to the requested number of spindles

Otherwise LVM may use a smaller number of PVs (spindles) to accommodate for
the default stripes.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Helga Velroyen <>
7c848a6a 05/28/2013 12:46 pm Bernardo Dal Seno

Spindles are mandatory with exclusive storage

If they are not specified in the command line an error is reported. Also,
disk creation would fail without them.

QA has been updated.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Helga Velroyen <>
baa7f1d6 05/28/2013 12:45 pm Bernardo Dal Seno

New BlockDev methods to get spindles

Two new methods are created to get the number of spindles, one alone, and
one together with size. For devices that don't support spindles, None is
returned.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Helga Velroyen <>
b5d48e87 05/28/2013 12:45 pm Bernardo Dal Seno

Attaching a logical volume builds a list of PVs

When an LV gets attached, the list of the PVs used by the LV is built. This
will be used to count spindles for exclusive_storage, but it could also be
useful to optimize disk growing and snapshotting.

Signed-off-by: Bernardo Dal Seno <>...
688b5752 05/28/2013 12:45 pm Bernardo Dal Seno

Refactor code for attaching a logical volume

The parsing of "lvs" output is moved into private methods. The code is
slightly more readable and testable. The split in two methods is useful
for the following patches. Unit tests for the new functions are
provided....
24c06acb 05/23/2013 02:04 pm Bernardo Dal Seno

Spindles are used in creating new disks

The requested number of spindles is used to allocate PVs when creating new
LVs.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Thomas Thrainer <>
5073fa0c 05/23/2013 02:03 pm Bernardo Dal Seno

Document disk device Create() functions

Document all the arguments and return values of bdev.Create() and
bdev.BlockDev.Create().

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Thomas Thrainer <>
cde49218 05/14/2013 04:46 pm Helga Velroyen

Rename dir 'block' to 'storage'

Renaming the 'block' directory to 'storage', because I plan to
place code there that is related to file storage and leaving
it named 'block' would be misleading.

Signed-off-by: Helga Velroyen <>
Reviewed-by: Thomas Thrainer <>