Hi, It appears that Multipath support is available on 512 and not 4k sector size. This is on RHEL 7.1. Can someone please confirm?
4k Sector size ========== Nov 13 16:20:16 colusa5-ceph kernel: device-mapper: table: 253:60: len=5119745 not aligned to h/w logical block size 4096 of dm-16 [ceph-node][WARNIN] INFO:ceph-disk:Running command: /usr/bin/udevadm settle [ceph-node][WARNIN] INFO:ceph-disk:Running command: /usr/sbin/partprobe /dev/mapper/mpathba [ceph-node][WARNIN] device-mapper: resume ioctl on mpathba2 failed: Invalid argument [ceph-node][WARNIN] device-mapper: remove ioctl on mpathba2 failed: No such device or address [ceph-node][WARNIN] Traceback (most recent call last): [ceph-node][WARNIN] File "/usr/sbin/ceph-disk", line 3576, in <module> [ceph-node][WARNIN] main(sys.argv[1:]) [ceph-node][WARNIN] File "/usr/sbin/ceph-disk", line 3530, in main [ceph-node][WARNIN] args.func(args) [ceph-node][WARNIN] File "/usr/sbin/ceph-disk", line 1863, in main_prepare [ceph-node][WARNIN] luks=luks [ceph-node][WARNIN] File "/usr/sbin/ceph-disk", line 1465, in prepare_journal [ceph-node][WARNIN] return prepare_journal_dev(data, journal, journal_size, journal_uuid, journal_dm_keypath, cryptsetup_parameters, luks) [ceph-node][WARNIN] File "/usr/sbin/ceph-disk", line 1419, in prepare_journal_dev [ceph-node][WARNIN] raise Error(e) [ceph-node][WARNIN] __main__.Error: Error: Command '['/usr/sbin/partprobe', '/dev/mapper/mpathba']' returned non-zero exit status 1 [ceph-node][ERROR ] RuntimeError: command returned non-zero exit status: 1 [ceph_deploy.osd][ERROR ] Failed to execute command: ceph-disk -v prepare --cluster ceph --fs-type xfs -- /dev/mapper/mpathba [ceph_deploy][ERROR ] GenericError: Failed to create 1 OSDs 512 bytes ======= [ceph-node1][WARNIN] DEBUG:ceph-disk:Creating xfs fs on /dev/dm-20 [ceph-node1][WARNIN] INFO:ceph-disk:Running command: /usr/sbin/mkfs -t xfs -f -i size=2048 -- /dev/dm-20 [ceph-node1][DEBUG ] meta-data=/dev/dm-20 isize=2048 agcount=4, agsize=242908597 blks [ceph-node1][DEBUG ] = sectsz=512 attr=2, projid32bit=1 [ceph-node1][DEBUG ] = crc=0 finobt=0 [ceph-node1][DEBUG ] data = bsize=4096 blocks=971634385, imaxpct=5 [ceph-node1][DEBUG ] = sunit=0 swidth=0 blks [ceph-node1][DEBUG ] naming =version 2 bsize=4096 ascii-ci=0 ftype=0 [ceph-node1][DEBUG ] log =internal log bsize=4096 blocks=474430, version=2 [ceph-node1][DEBUG ] = sectsz=512 sunit=0 blks, lazy-count=1 [ceph-node1][DEBUG ] realtime =none extsz=4096 blocks=0, rtextents=0 [ceph-node1][WARNIN] DEBUG:ceph-disk:Mounting /dev/dm-20 on /var/lib/ceph/tmp/mnt._dvVgI with options inode64,noatime,logbsize=256k Regards, Rama
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