Re: [ceph-users] RBD hole punching

2013-08-22 Thread David Blundell
> I see yet another caveat: According to that documentation, it only works with > the IDE driver, not with virtio. > > Guido I've just been looking into this but have not yet tested. It looks like discard is supported in the newer virtio-scsi devices but not virtio-blk. This Sheepdog pag

[ceph-users] Listing objects in a specified placement group / OSD

2016-07-27 Thread David Blundell
Hi, I wasn't sure if this is a ceph-users or ceph-devel question as it's about the API (users) but the answer may involve me writing a RADOS method (devel). At the moment in Ceph Jewel I can find which objects are held in an OSD or placement group by looking on the filesystem under /var/lib/ce

Re: [ceph-users] Listing objects in a specified placement group / OSD

2016-07-27 Thread David Blundell
the local filesystem but I want to ensure that the system will work with BlueStore and any future changes so would love to be able to query this e.g. via librados. Cheers, David > -Original Message- > From: Samuel Just [mailto:sj...@redhat.com] > Sent: 27 July 2016 17:45 > To

Re: [ceph-users] SSDs for data drives

2018-07-11 Thread David Blundell
Hi, I’m looking at 4TB Intel DC P4510 for data drives running BlueStore with WAL, DB and data on the same drives. Has anyone had any good / bad experiences with them? As Intel’s new data centre NVMe SSD it should be fast and reliable but then I would have thought the same about the DC S4600 d