Re: [openstack-dev] [Cinder] About storing volume format info for filesystem-based drivers

2014-06-24 Thread John Griffith
On Tue, Jun 24, 2014 at 9:56 AM, Duncan Thomas wrote: > On 24 June 2014 16:42, Avishay Traeger wrote: > > One more reason why block storage management doesn't really work on file > > systems. I'm OK with storing the format, but that just means you fail > > migration/backup operations with diffe

Re: [openstack-dev] [Cinder] About storing volume format info for filesystem-based drivers

2014-06-24 Thread John Griffith
On Tue, Jun 24, 2014 at 9:42 AM, Avishay Traeger wrote: > One more reason why block storage management doesn't really work on file > systems. I'm OK with storing the format, but that just means you fail > migration/backup operations with different formats, right? > ​+1... so nice that someb

Re: [openstack-dev] [Cinder] About storing volume format info for filesystem-based drivers

2014-06-24 Thread Duncan Thomas
On 24 June 2014 16:42, Avishay Traeger wrote: > One more reason why block storage management doesn't really work on file > systems. I'm OK with storing the format, but that just means you fail > migration/backup operations with different formats, right? Actually I think storing the format *fixes

Re: [openstack-dev] [Cinder] About storing volume format info for filesystem-based drivers

2014-06-24 Thread Avishay Traeger
One more reason why block storage management doesn't really work on file systems. I'm OK with storing the format, but that just means you fail migration/backup operations with different formats, right? On Mon, Jun 23, 2014 at 6:07 PM, Trump.Zhang wrote: > Hi, all: > > Currently, there are

Re: [openstack-dev] [Cinder] About storing volume format info for filesystem-based drivers

2014-06-23 Thread Eric Harney
On 06/23/2014 11:07 AM, Trump.Zhang wrote: > Hi, all: > > Currently, there are several filesystem-based drivers in Cinder, such > as nfs, glusterfs, etc. Multiple format of volume other than "raw" can be > potentially supported in these drivers, such as qcow2, raw, sparse, etc. > > Howeve

Re: [openstack-dev] [Cinder] About storing volume format info for filesystem-based drivers

2014-06-23 Thread Duncan Thomas
Write a blueprint and a patch... On 23 June 2014 16:07, Trump.Zhang wrote: > Hi, all: > > Currently, there are several filesystem-based drivers in Cinder, such as > nfs, glusterfs, etc. Multiple format of volume other than "raw" can be > potentially supported in these drivers, such as qcow2,

[openstack-dev] [Cinder] About storing volume format info for filesystem-based drivers

2014-06-23 Thread Trump.Zhang
Hi, all: Currently, there are several filesystem-based drivers in Cinder, such as nfs, glusterfs, etc. Multiple format of volume other than "raw" can be potentially supported in these drivers, such as qcow2, raw, sparse, etc. However, Cinder does not store the actual format of volume and