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This may help:
http://lists.ceph.com/pipermail/ceph-users-ceph.com/2015-September/004295.html Cheers, Simon From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx]
On Behalf Of Vickie ch Hi cephers, Have anyone ever created osd with btrfs in Hammer 0.94.3 ? I can create btrfs partition successfully. But once use "ceph-deploy" then always get error like below. Another
question there is no parameter " -f " with mkfs. Any suggestion is appreciated. --------------------------------------------------------------------- [osd3][DEBUG ] The operation has completed successfully. [osd3][WARNIN] DEBUG:ceph-disk:Calling partprobe on created device /dev/sda [osd3][WARNIN] INFO:ceph-disk:Running command: /sbin/partprobe /dev/sda [osd3][WARNIN] INFO:ceph-disk:Running command: /sbin/udevadm settle [osd3][WARNIN] DEBUG:ceph-disk:Creating btrfs fs on /dev/sda1 [osd3][WARNIN] INFO:ceph-disk:Running command: /sbin/mkfs -t btrfs -m single -l 32768 -n 32768 -- /dev/sda1 [osd3][WARNIN] /dev/sda1 appears to contain an existing filesystem (xfs). [osd3][WARNIN] Error: Use the -f option to force overwrite. [osd3][WARNIN] ceph-disk: Error: Command '['/sbin/mkfs', '-t', 'btrfs', '-m', 'single', '-l', '32768', '-n', '32768', '--', '/dev/sda1']' returned non-zero exit status 1 [osd3][ERROR ] RuntimeError: command returned non-zero exit status: 1 [ceph_deploy.osd][ERROR ] Failed to execute command: ceph-disk -v prepare --zap-disk --cluster ceph --fs-type btrfs -- /dev/sda [ceph_deploy][ERROR ] GenericError: Failed to create 1 OSDs ----------------------------------------------------------------------------
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