Re: [LSF/MM TOPIC] Thin provisioning SOFT_THRESHOLD error handling

2013-02-07 Thread Hannes Reinecke
On 02/07/2013 02:06 PM, Boaz Harrosh wrote: [ .. ] Hannes hi! This is received as an "unit attentions", right? Will it not be worth while to solve the general "unit attentions" under udev events, once and for all. Than such a btrfs GC above can just be a simple oneline udev rule. You might wa

Re: [LSF/MM TOPIC] Thin provisioning SOFT_THRESHOLD error handling

2013-02-07 Thread Boaz Harrosh
On 01/29/2013 10:14 AM, Hannes Reinecke wrote: > Hi all, > > Thin-provisioned devices have the ability to set a 'soft threshold', > which is triggered if the real free space for this device is beyond > this mark. > > The intention behind this is to allow the system to induce some > garbage col

Re: [LSF/MM TOPIC] Thin provisioning SOFT_THRESHOLD error handling

2013-02-05 Thread Kent Overstreet
On Tue, Jan 29, 2013 at 12:14 AM, Hannes Reinecke wrote: > Hi all, > > Thin-provisioned devices have the ability to set a 'soft threshold', which > is triggered if the real free space for this device is beyond this mark. > > The intention behind this is to allow the system to induce some garbage >

Re: [LSF/MM TOPIC] Thin provisioning SOFT_THRESHOLD error handling

2013-02-04 Thread Jeff Mahoney
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/29/13 3:14 AM, Hannes Reinecke wrote: > Hi all, > > Thin-provisioned devices have the ability to set a 'soft > threshold', which is triggered if the real free space for this > device is beyond this mark. > > The intention behind this is to allow

Re: [LSF/MM TOPIC] Thin provisioning SOFT_THRESHOLD error handling

2013-02-04 Thread Roland Dreier
On Tue, Jan 29, 2013 at 12:14 AM, Hannes Reinecke wrote: > I would like to discuss at LSF the possible implementations > and handling mechanism for this kind of failure scenarios. I'd be interested in that discussion. With my Pure hat on, our array can generate these thin provisioning threshold