My system (PC with Red Hat 8) crashed in the middle of the day. Several filesystems refuse to mount with fsck and I have no backups to these systems.
Do you have any idea what I can do or where to start?
Moving forward, can you please tell me how I can mirror disks at the OS level with Linux.
Cardinal rule: back up using a planned back-up strategy or use disk mirroring for disaster recovery.
Editor's note: Here are two tips on mirroring strategies you may find helpful:
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