Thanks Mark On 18 November 2016 at 15:09, Mark Turansky <mtura...@redhat.com> wrote:
> > > On Thu, Nov 17, 2016 at 10:41 PM, Lionel Orellana <lione...@gmail.com> > wrote: > >> Hi, >> >> Couple of questions regarding Persistent Volumes, in particular NFS ones. >> >> 1) If I have a PV configured with the Retain policy it is not clear to me >> how this PV can be reused after the bound PVC is deleted. Deleting the PVC >> makes the PV status "Released". How do I make it "Available" again without >> losing the data? >> > > You can keep the PVC around longer if you intend to reuse it between pods. > There is no way for a PV to go from Released to Available again in your > scenario. You would have to delete and recreate the PV. It's a pointer to > real storage (the NFS share), so you're just recreating the pointer. The > data in the NFS volume itself is untouched. > > > >> >> 2) Is there anything (e.g. all nodes crashing due to some underlying >> infrastructure failure) that would cause the data in a "Retain" volume to >> be wiped out? We had a problem with all our vmware servers (where I host >> my openshift POC) and all my NFS mounted volumes were wiped out. The >> storage guys assure me that nothing at their end caused that and it must >> have been a running process that did it. >> > > "Retain" is just a flag to the recycling process to leave that PV alone > when it's Released. The PV's retention policy wouldn't cause everything to > be deleted. NFS volumes on the node are no different than if you called > "mount" yourself. There is nothing inherent in OpenShift itself that is > running in that share that would wipe out data. > > > >> >> Thanks >> >> Lionel. >> >> _______________________________________________ >> users mailing list >> users@lists.openshift.redhat.com >> http://lists.openshift.redhat.com/openshiftmm/listinfo/users >> >> >
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