On Wed, Apr 24 2019 at 10:46am -0400, Ryan Norwood <ryan.p.norwood@xxxxxxxxx> wrote: > On Wed, Apr 24, 2019 at 9:08 AM Ryan Norwood <[1]ryan.p.norwood@xxxxxxxxx> > wrote: > > Thank you for your help. > You are correct, it appears that the problem occurs when there is a RAID > 5 or RAID 50 volume beneath VDO. > NAME KNAME RA SIZE ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC > RQ-SIZE SCHED WSAME > sdh > sdh 128 977.5G 0 512 0 512 512 128 > deadline 0B > +-sed6 > dm-6 128 977.5G 0 512 0 512 512 128 > 0B > +-md127 > md127 12288 5.7T 0 1048576 6291456 512 512 128 > 0B > +-vdo_data > dm-17 128 5.7T 0 1048576 6291456 512 512 128 > 0B > +-vdo > dm-18 128 57.3T 0 4096 4096 4096 4096 128 > 0B > /sys/block/md126/queue/max_hw_sectors_kb:2147483647 > /sys/block/md126/queue/max_integrity_segments:0 > /sys/block/md126/queue/max_sectors_kb:512 > /sys/block/md126/queue/max_segments:64 > /sys/block/md126/queue/max_segment_size:4096 > /sys/block/dm-17/queue/max_hw_sectors_kb:512 > /sys/block/dm-17/queue/max_integrity_segments:0 > /sys/block/dm-17/queue/max_sectors_kb:512 > /sys/block/dm-17/queue/max_segments:64 > /sys/block/dm-17/queue/max_segment_size:4096 > /sys/block/dm-18/queue/max_hw_sectors_kb:4 > /sys/block/dm-18/queue/max_integrity_segments:0 > /sys/block/dm-18/queue/max_sectors_kb:4 > /sys/block/dm-18/queue/max_segments:64 > /sys/block/dm-18/queue/max_segment_size:4096 > NAME KNAME RA SIZE ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC > RQ-SIZE SCHED WSAME > sdq sdq 128 977.5G 0 512 0 512 512 > 128 deadline 0B > +-sed15 dm-15 128 977.5G 0 512 0 512 512 > 128 0B > +-vdo dm-16 128 57.3T 0 4096 4096 4096 4096 > 128 0B > /sys/block/sdq/queue/max_hw_sectors_kb:256 > /sys/block/sdq/queue/max_integrity_segments:0 > /sys/block/sdq/queue/max_sectors_kb:256 > /sys/block/sdq/queue/max_segments:64 > /sys/block/sdq/queue/max_segment_size:65536 > /sys/block/dm-15/queue/max_hw_sectors_kb:256 > /sys/block/dm-15/queue/max_integrity_segments:0 > /sys/block/dm-15/queue/max_sectors_kb:256 > /sys/block/dm-15/queue/max_segments:64 > /sys/block/dm-15/queue/max_segment_size:4096 > /sys/block/dm-16/queue/max_hw_sectors_kb:256 > /sys/block/dm-16/queue/max_integrity_segments:0 > /sys/block/dm-16/queue/max_sectors_kb:256 > /sys/block/dm-16/queue/max_segments:64 > /sys/block/dm-16/queue/max_segment_size:4096 [please don't top-post] The above examples are hard to parse due to premature line wrapping. Would appreciate seeing the IO stack in terms of: dmsetup ls --tree -o blkdevname dmsetup table Feel free to trucate the output of both commands to just show one entire example of the IO stack in question. thanks, Mike -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
