diff --git a/content/2.md b/content/2.md index 3910985..97820da 100644 --- a/content/2.md +++ b/content/2.md @@ -9,11 +9,11 @@ Having a number of disks in RAID may **seem** like a backup, especially if you'r RAID protects you against one and only one thing: a disk failure. It does **not** protect you against any of the following things: - 1. Multiple disk failures beyond the RAID level chosen (e.g. both disks in a mirror, or 3 disks in a RAID-6). - 2. Failure of the RAID controller itself (especially when using hardware RAID), the computer itself, or the environment (a flood, or fire, perhaps). - 3. Data corruption on-disk (except for ZFS, and especially for BTRFS) from cosmic rays, or minor hardware or firmware failures. - 4. File corruption from bad writes or bit rot (except for ZFS), including whole-volume corruption from administrative mistakes (e.g. =mkfs= on an existing filesystem). - 5. Malicious or accidental deletion or modification of data by yourself or another party, including viruses. +* Multiple disk failures beyond the RAID level chosen (e.g. both disks in a mirror, or 3 disks in a RAID-6). +* Failure of the RAID controller itself (especially when using hardware RAID), the computer itself, or the environment (a flood, or fire, perhaps). +* Data corruption on-disk (except for ZFS, and especially for BTRFS) from cosmic rays, or minor hardware or firmware failures. +* File corruption from bad writes or bit rot (except for ZFS), including whole-volume corruption from administrative mistakes (e.g. =mkfs= on an existing filesystem). +* Malicious or accidental deletion or modification of data by yourself or another party, including viruses. The adage is simple: "RAID replicates **everything**, even the stuff you don't want, like the deletion of that file you needed."