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linux - Impossible to stop raid device - Server Fault
https://serverfault.com/questions/286169/impossible-to-stop-raid-device
Jul 1, 2011 - /dev/md1 is the RAID array itself. You need to stop a particular participant in that array. Try: mdadm --fail /dev/md0 /dev/sda1 mdadm --remove /dev/md0 /dev/sda1[SOLVED] How to remove an MDADM Raid Array, Once and For All ...
https://ubuntuforums.org/showthread.php?t=884556
Aug 9, 2008 - sudo mdadm --stop /dev/md0. Before the above step, I needed to unmount the array first, otherwise I got the "device is busy" failure. Code: sudo umount /dev/linux - How to force mdadm to stop RAID5 array? - Super User
https://superuser.com/questions/471327/how-to-force-mdadm-to-stop-raid5-array
Sep 7, 2012 - I realize that this is an old question and the original poster believed that SAMBA was the issue, but I experienced the same exact problem and think that very likely the issue was not SAMBA (I actually don't even have SAMBA), since it didn't show up in the lsof output, but rather the user was already in the ...unable to unmount raid array or unable to stop raid array ...
https://www.linuxquestions.org/.../unable-to-unmount-raid-array-or-unable-to-stop-ra...
Jul 9, 2013 - 4 posts - ‎2 authors
As I try to unmount,stop raid array this is the message i get umount /raid. Code: umount: /raid: device is busy umount: /raid: device is busy. mdadm -S /dev/md0. Code: mdadm: fail to stop array /dev/md0: Device or resource busy Perhaps a running process, mounted filesystem or active volume group?software raid - How to recover a crashed Linux md RAID5 array ...
https://unix.stackexchange.com/.../how-to-recover-a-crashed-linux-md-raid5-array
Mar 8, 2011 - One drive got failed, I re-added in the array but during rebuild 3 of 4 drives failed altogether. The contents of /proc/mdadm was the same as yours (maybe not in the same order) ... If one disk fails during rebuild, it is expected that the array will stop and freeze not doing any writes to the other disks. In this case ...How do I force stop a md array? - AnandTech Forums
https://forums.anandtech.com › Forums › Software › *nix Software
Jul 14, 2014 - I need to destroy and reconstruct a mdadm array as when I built it I assumed it would add a drive as hot spare given I was trying to use an odd number... ... Now it wont let me stop the md device even though it's not mounted. I really don't want to ... If you can't stop and delete, try failing the drives in the array.How To Manage RAID Arrays with mdadm on Ubuntu 16.04 ...
https://www.digitalocean.com/.../how-to-manage-raid-arrays-with-mdadm-on-ubuntu-...
Aug 16, 2016 - In this guide, we discuss how to use Linux's mdadm utility to manage RAID arrays and perform day-to-day administrative tasks. We cover how to start, stop, or remove RAID arrays, how to find information about both the RAID device and the underlying sto.Recovering a failed software RAID - Linux Raid Wiki
https://raid.wiki.kernel.org/index.php/Recovering_a_failed_software_RAID
Jump to Stop the RAID - You should now stop the RAID as that may otherwise cause problems later on: mdadm --stop /dev/md0. If you cannot stop the RAID (due to the RAID being mounted), note down the RAID UUID and re-seat all the harddisks used by the RAID or reboot. Afterwards identify the devices ...Mdadm Cheat Sheet - MDLog:/sysadmin
www.ducea.com/2009/03/08/mdadm-cheat-sheet/
Mar 8, 2009 - mdadm --detail --scan should tell you what the system sees even if you have no configuration files. You might want to look at zero-superblock if you removed a disk from the raid and want to cleanup raid config on it. Michael • 6 years ago. oh, and I forgot to say that any stop, fail, remove operations claim ...Software RAID: What Happened?
https://www.cac.cornell.edu/slantz/perseus/software-raid-what-happened.html
Feb 14, 2017 - [/usr/lib/systemd/system/rtkit-daemon.service:32] Unknown lvalue 'ControlGroup' in section 'Service' type=1400 ... avc: denied { read } for pid=1129 comm="