NAS542: How to remove disks from RAID 1?
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That have worked!
</code><code>mdadm --zero-superblock /dev/sda3
Reboot...Come h e l l or high water, same procedure for /dev/sdb3....~ # cat /proc/mdstat<br>Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] <br>md2 : active raid1 sdb3[6] sdd3[3] sde3[4]<br> 972631040 blocks super 1.2 [3/3] [UUU]<br> <br>md1 : active raid1 sda2[4] sde2[6] sdd2[5] sdb2[7]<br> 1998784 blocks super 1.2 [4/4] [UUUU]<br> <br>md0 : active raid1 sda1[4] sde1[6] sdd1[5] sdb1[7]<br> 1997760 blocks super 1.2 [4/4] [UUUU]<br> <br>~ # df -k<br>Filesystem 1K-blocks Used Available Use% Mounted on<br>ubi7:ubi_rootfs2 92892 49816 38296 57% /firmware/mnt/nand<br>/dev/md0 1966352 183152 1683312 10% /firmware/mnt/sysdisk<br>/dev/loop0 142799 126029 16770 88% /ram_bin<br>/dev/loop0 142799 126029 16770 88% /usr<br>/dev/loop0 142799 126029 16770 88% /lib/security<br>/dev/loop0 142799 126029 16770 88% /lib/modules<br>/dev/loop0 142799 126029 16770 88% /lib/locale<br>/dev/ram0 5120 4 5116 0% /tmp/tmpfs<br>/dev/ram0 5120 4 5116 0% /usr/local/etc<br>ubi3:ubi_config 2408 132 2120 6% /etc/zyxel<br>/dev/md2 957368980 929638704 27730276 97% /i-data/90901ca4<br>/dev/md2 957368980 929638704 27730276 97% /usr/local/apache/htdocs/desktop,/pkg<br>/dev/sdc1 961402172 928016208 33385964 97% /e-data/8d974727c6f6865e1624d1b2c5423c07<br><br>
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... successfully done. Now I could increase the capacity up to 4TB using the unused space from the manage tool within the GUI, estimated repair time >80 hours (!!) .......
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