Hi Alexander, Already set (and confirmed by running the command again) - no good, I'm afraid. So I just restart with a brand new image and ran the following commands on the ceph cluster and the host respectively. Results are below: On the ceph cluster: [code] rbd create --size 4T my_pool.meta/my_image --data-pool my_pool.data --image-feature exclusive-lock --image-feature deep-flatten --image-feature fast-diff --image-feature layering --image-feature object-map --image-feature data-pool [/code] On the host: [code] rbd device map my_pool.meta/my_image --id ceph_rbd_user --keyring /etc/ceph/ceph.client.ceph_rbd_user.keyring mkfs.xfs /dev/rbd0 [/code] Results: [code] meta-data=/dev/rbd0 isize=512 agcount=32, agsize=33554432 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=1, sparse=1, rmapbt=0 = reflink=1 bigtime=1 inobtcount=1 nrext64=0 data = bsize=4096 blocks=1073741824, imaxpct=5 = sunit=16 swidth=16 blks naming =version 2 bsize=4096 ascii-ci=0, ftype=1 log =internal log bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=16 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 Discarding blocks...Done. mkfs.xfs: pwrite failed: Input/output error libxfs_bwrite: write failed on (unknown) bno 0x1ffffff00/0x100, err=5 mkfs.xfs: Releasing dirty buffer to free list! found dirty buffer (bulk) on free list! mkfs.xfs: pwrite failed: Input/output error libxfs_bwrite: write failed on (unknown) bno 0x0/0x100, err=5 mkfs.xfs: Releasing dirty buffer to free list! found dirty buffer (bulk) on free list! mkfs.xfs: pwrite failed: Input/output error libxfs_bwrite: write failed on xfs_sb bno 0x0/0x1, err=5 mkfs.xfs: Releasing dirty buffer to free list! found dirty buffer (bulk) on free list! mkfs.xfs: pwrite failed: Input/output error libxfs_bwrite: write failed on (unknown) bno 0x100000080/0x80, err=5 mkfs.xfs: Releasing dirty buffer to free list! found dirty buffer (bulk) on free list! mkfs.xfs: read failed: Input/output error mkfs.xfs: data size check failed mkfs.xfs: filesystem failed to initialize [/code] On 25/03/2024 15:17, Alexander E. Patrakov wrote:
Hello Matthew,
Is the overwrite enabled in the erasure-coded pool? If not, here is how to fix it:
ceph osd pool set my_pool.data allow_ec_overwrites true