I've encountered an issue with multipath storage. I've resized a LUN and have rescanned the system to account for it. Multipath recognizes the new size.Before rescan:mpathax (36000d310007140000000000000000312) dm-2 COMPELNT,Compellent Vol size=50G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 0:0:0:2 sdd 8:48 active ready running |- 1:0:0:2 sdbj 67:208 active ready running |- 0:0:2:2 sdag 66:0 active ready running `- 1:0:2:2 sdcm 69:160 active ready running After rescan:mpathax (36000d310007140000000000000000312) dm-2 COMPELNT,Compellent Vol size=200G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 0:0:0:2 sdd 8:48 active ready running |- 1:0:0:2 sdbj 67:208 active ready running |- 0:0:2:2 sdag 66:0 active ready running `- 1:0:2:2 sdcm 69:160 active ready running Attempting to resize the filesystem (ext4) fails:[user@server ~] $ resize2fs /dev/mapper/mpathaxresize2fs 1.43-WIP (20-Jun-2013) resize2fs: Device or resource busy while trying to open /dev/mapper/mpathax Couldn't find valid filesystem superblock. This hasn't been an issue on other servers and the filesystem is in active use so I know it isn't corrupted. FWIW, resizes of other, actively used filesystems did not encounter issues.I've looked around and the only other references to this issue appear to deal with LVM. This is not LVM.Any thoughts on what I should be looking into?
Unable to resize filesystem on multipath device
filesystems;oracle linux;resize2fs;multipath storage