Btrfs RAID 5/6: Still Don't
The kernel docs still warn about it. The Btrfs wiki still warns about it. People still build it and lose data. Here's the write hole, why RAID 1/10 are fine, and what to use instead.
All the articles with the tag "linux".
The kernel docs still warn about it. The Btrfs wiki still warns about it. People still build it and lose data. Here's the write hole, why RAID 1/10 are fine, and what to use instead.
Your media library doesn't write often enough to justify mdadm or ZFS overhead. SnapRAID calculates parity on a schedule, mixes drive sizes, and pairs with MergerFS for a unified pool. Here's the setup.
Creating a RAID array is the easy part. The drama starts six months later when one drive starts dying. Here's the survival guide for everything that happens after mdadm --create.
Hardware RAID controllers used to be necessary. Now they're often a liability. Here's when to flash that LSI card to IT mode, when to keep it, and why ZFS specifically refuses to share.
RAID-Z isn't just RAID 5 with a new name. Variable stripe widths, no write hole, and dRAID's distributed spares change the rebuild math entirely.
RAID 5 and 6 don't scale gracefully past 8 drives. RAID 50 and RAID 60 stripe across multiple parity sub-arrays so rebuilds only stress one group. Here's when nesting actually pays off.
BorgBackup is great. Borgmatic makes you actually run it: config-driven schedules, hooks, healthchecks, and a backup system that pages you when it breaks.
Three Linux gaming distros, three approaches. Immutable Bazzite, tweaked Nobara, performance-tuned CachyOS. Here's which one to pick for gaming Linux.
Flatpak owns desktop. Snap dominates Ubuntu. AppImage is portable. Here's how to pick the right Linux app distribution format for your use case.
X11 is officially legacy. NVIDIA works, screen share works, color management is here. Here's the actual state of Wayland in 2026 and when X11 is still needed.
Three Linux desktops, three philosophies. COSMIC is opinionated Rust. KDE is maximally customizable. GNOME is workflow-first. Here's how to pick.
Before you rack that server and walk away forever, these BIOS and UEFI settings will save you from a 3 AM drive to the datacenter or your dusty basement.