alicebeast
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alicebeast [2020/06/18 15:48] florido [Admin rights] |
alicebeast [2020/06/23 09:49] florido |
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| > How to detect? | > How to detect? | ||
| - | > What to do | + | > What to do - FIXME: requires own page |
| + | |||
| + | 1. Identify the broken raid disk. If it is one of the U.2 disks, then the procedure is slightly easier. One can skip steps FIXME:[number of steps] | ||
| + | |||
| + | 2. Mark the RAID disk as faulty if the system did not do automatically. | ||
| + | |||
| + | 3. Remove the device from the array. | ||
| + | |||
| + | 4. Shut down the machine. | ||
| + | |||
| + | 5. Replace the broken disk. | ||
| + | |||
| + | 6. start the machine using sysrescuecd. | ||
| + | |||
| + | 7. Create the proper partitions on the disk. | ||
| + | * FIXME copy geometry and UUIDs here for reference | ||
| + | 8. Initialize the swap partition on the new disk | ||
| + | |||
| + | 9. If one of the arrays is inactive, must be restarted. Follow FIXME:[procedure for restarting] | ||
| + | |||
| + | 10. Add the new partitions to existing arrays. Wait for the arrays to rebuild. | ||
| + | |||
| + | 11. Mount the array and change the UUID of the swap partition in /etc/fstab | ||
| + | |||
| + | 12. Rebuilding the boot system | ||
| + | |||
| + | 12.1. Boot with Centos7 rescue image in troubleshooting mode | ||
| + | * FIXME: provide such image or info how to boot | ||
| + | 12.2. chroot to system, identify new disk, run grub2-install /dev/newdisk | ||
| + | |||
| + | 12.3. reboot | ||
| + | |||
| + | 13. If it worked one should see the grub boot -- it might be required to boot again | ||
| + | |||
| + | If it didn't work the disk device at step 12.2 was wrong, repeat 12 | ||
| + | |||
| + | ==== raw disks info ==== | ||
| + | |||
| + | <code bash> | ||
| + | Disk /dev/nvme0n1: 250.1 GB, 250059350016 bytes, 488397168 sectors | ||
| + | Units = sectors of 1 * 512 = 512 bytes | ||
| + | Sector size (logical/physical): 512 bytes / 512 bytes | ||
| + | I/O size (minimum/optimal): 512 bytes / 512 bytes | ||
| + | Disk label type: dos | ||
| + | Disk identifier: 0x000c07b1 | ||
| + | |||
| + | Device Boot Start End Blocks Id System | ||
| + | /dev/nvme0n1p1 * 2048 195444735 97721344 fd Linux raid autodetect | ||
| + | /dev/nvme0n1p2 195444736 390887423 97721344 fd Linux raid autodetect | ||
| + | /dev/nvme0n1p3 390887424 422135807 15624192 82 Linux swap / Solaris | ||
| + | |||
| + | Disk /dev/nvme1n1: 960.2 GB, 960197124096 bytes, 1875385008 sectors | ||
| + | Units = sectors of 1 * 512 = 512 bytes | ||
| + | Sector size (logical/physical): 512 bytes / 512 bytes | ||
| + | I/O size (minimum/optimal): 512 bytes / 512 bytes | ||
| + | Disk label type: dos | ||
| + | Disk identifier: 0x000c4c4c | ||
| + | |||
| + | Device Boot Start End Blocks Id System | ||
| + | /dev/nvme1n1p1 * 2048 195444735 97721344 fd Linux raid autodetect | ||
| + | /dev/nvme1n1p2 195444736 390887423 97721344 fd Linux raid autodetect | ||
| + | /dev/nvme1n1p3 390887424 1875384319 742248448 fd Linux raid autodetect | ||
| + | |||
| + | Disk /dev/nvme2n1: 960.2 GB, 960197124096 bytes, 1875385008 sectors | ||
| + | Units = sectors of 1 * 512 = 512 bytes | ||
| + | Sector size (logical/physical): 512 bytes / 512 bytes | ||
| + | I/O size (minimum/optimal): 512 bytes / 512 bytes | ||
| + | Disk label type: dos | ||
| + | Disk identifier: 0x000e7acc | ||
| + | |||
| + | Device Boot Start End Blocks Id System | ||
| + | /dev/nvme2n1p1 * 2048 195444735 97721344 fd Linux raid autodetect | ||
| + | /dev/nvme2n1p2 195444736 390887423 97721344 fd Linux raid autodetect | ||
| + | /dev/nvme2n1p3 390887424 1875384319 742248448 fd Linux raid autodetect | ||
| + | </code> | ||
| ===== Monitoring ===== | ===== Monitoring ===== | ||
alicebeast.txt · Last modified: 2021/01/19 17:23 by florido
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