mdadm "auto-read-only" Linux Software RAID solution

If you have the "(auto-read-only)" beside an arrayI have no idea why that happens but it is easy to fix.

Just run "mdadm --readwrite /dev/md1" (rename md0 to the device with the problem and it will begin to resync.

md1 : active (auto-read-only) raid1 sdb2[0] sda2[1]
19534976 blocks [2/2] [UU]
resync=PENDING

md0 : active raid1 sda1[2] sdb1[0]
488287488 blocks [2/1] [U_]
[>....................] recovery = 1.9% (9341504/488287488) finish=302.1min speed=26421K/sec

unused devices:
# cat /proc/mdstat
# mdadm --readwrite /dev/md1
# cat /proc/mdstat
Personalities : [raid1]
md1 : active raid1 sdb2[0] sda2[1]
19534976 blocks [2/2] [UU]
resync=DELAYED
md0 : active raid1 sda1[2] sdb1[0]
488287488 blocks [2/1] [U_]
[>....................] recovery = 1.9% (9677184/488287488) finish=302.5min speed=26368K/sec

unused devices:


Tags:

mdadm, auto, linux, software, raid, solutionif, quot, array, readwrite, dev, md, rename, resync, active, sdb, sda, uu, pending, u_, min, unused, devices, proc, mdstat, personalities, delayed,

Latest Articles

  • Debian Ubuntu Mint rc-local service startup error solution rc-local.service: Failed at step EXEC spawning /etc/rc.local: Exec format error
  • MySQL Cheatsheet Guide and Tutorial
  • bash script kill whois or other command that is running for too long
  • Linux tftp listens on all interfaces and IPs by DEFAULT Security Risk Hole Solution
  • python import docx error
  • Cisco Unified Communications Manager Express Cheatsheet CUCME CME
  • Linux Ubuntu Debian Missing privilege separation directory: /var/run/sshd
  • bash how to count the number of columns or words in a line
  • bash if statement how to test program output without assigning to variable
  • RTNETLINK answers: Network is unreachable
  • Centos 7 how to save iptables rules like Centos 6
  • nfs tuning maximum amount of connections
  • qemu-kvm error "Could not initialize SDL(No available video device) - exiting"
  • Centos 7 tftpd will not work with selinux enabled
  • Debian Ubuntu Mint Howto Create Bridge (br0)
  • How To Control Interface that dhcpd server listens to on Debian based Linux like Mint and Ubuntu
  • LUKS unable to type password to unlock during boot on Debian, Ubuntu and Mint
  • Debian Ubuntu and Linux Mint Broken Kernel After Date - New Extra Module Naming Convention
  • Wordpress overwrites and wipes out custom htaccess rules and changes soluton
  • Apache htaccess and mod_rewrite how to redirect and force all URLs and visitors to the SSL / HTTPS version