DayZ Server Backups: Persistence Safety and Recovery

DayZ Server Backups: Persistence Safety and Recovery

DayZ stores player camps, bases, vehicles and inventories in persistence — one crash, a bad mod update, or an accidental wipe can destroy that data. A solid backup strategy protects your community from data loss.

What Needs to Be Backed Up?

Folder / File	Contents	Importance
mpmissions/<mission>/storage_1/	Persistence: camps, bases, vehicles, world items	Critical
mpmissions/<mission>/db/	types.xml, events.xml, globals.xml, messages.xml	High
mpmissions/<mission>/cfgeconomycore.xml	CE file routing	High
mpmissions/<mission>/cfgspawnabletypes.xml, cfgeventspawns.xml, cfgplayerspawnpoints.xml	Spawn config	High
mpmissions/<mission>/init.c	Mission script	High
serverDZ.cfg	Main server configuration	High
battleye/BEServer_x64.cfg, bans.txt	RCon and ban list	Medium
profiles/	Logs, mod configs (e.g. VPP permissions)	Medium
keys/	Mod signatures	Low (re-copied on mod update)

The most important folder: storage_1 — without it, everything is gone.

How Persistence Works Technically

DayZ uses a file-based persistence engine. storage_1 contains:

• data/ — current world items, player inventories, vehicles
• players.db — player data (Steam ID → last character)
• dynamic_* and static_* files — world state

Every server restart serializes the current state. During runtime persistence is written cyclically (SaveOnHive).

Strategy by Server Size

Small vanilla server (1-20 players, casual):

• 1× daily snapshot of storage_1
• Weekly mission and config backup
• Keep at least 3 versions

Mid modded server (20-40 players):

• Snapshot storage_1 every 6 hours (ideal: before each restart)
• Daily mission and config backup
• 7-day rolling, plus 1 weekly snapshot

Large RP / community server (40+ players):

• Hourly storage_1
• Snapshot before every scheduled restart
• Snapshot before every mod update
• 14-day rolling, plus monthly archive snapshots

Backups in the RespawnHost Panel

RespawnHost has backup features built into the panel. You can:

1. Manual backups with one click — recommended before every mod update
2. Scheduled backups (e.g. every 6 hours)
3. One-click restore from the backup list

Backups consume storage — check your panel for quotas and retention details.

Restore: What to Do When Things Break

Scenario 1: Persistence corrupted after crash

Symptoms: players lose their character, built structures missing, server crashes during mission load.

1. Stop the server
2. In the panel, pick the last working backup
3. Start the restore — only storage_1 if possible
4. Start the server, inform players

Scenario 2: Mod update breaks the server

1. Stop the server
2. Disable the offending mod in the panel
3. Restore mpmissions/<mission>/db/ from backup if you had manual tweaks there
4. Start — if the mission runs without the mod, you’re set

Scenario 3: Accidental wipe

storage_1 was deleted or an empty restart folder activated.

1. Stop the server before a new persistence save writes
2. Restore the latest backup — you only lose the time between backup and wipe

DIY Backups (for Self-Hosters)

Self-hosted? A simple script handles automation:

PowerShell example (Windows):

$Date = Get-Date -Format "yyyyMMdd-HHmm"
$Source = "C:\DayZServer\mpmissions\dayzOffline.chernarusplus\storage_1"
$Dest = "D:\Backups\DayZ\storage_$Date"
Copy-Item -Path $Source -Destination $Dest -Recurse

Schedule it via Task Scheduler every 6 hours.

Linux/Bash example:

DATE=$(date +%Y%m%d-%H%M)
tar -czf /backups/dayz-storage-$DATE.tar.gz \
    /home/dayz/server/mpmissions/dayzOffline.chernarusplus/storage_1
find /backups -name "dayz-storage-*.tar.gz" -mtime +14 -delete

Cron every 6 hours, plus auto-cleanup older than 14 days.

Backups Before Mod Updates

Mods cause the largest share of server crashes. Before updating a mod (or before an auto-update from the workshop), always back up:

1. RespawnHost panel: “Create backup now”
2. Note the date + which mod is being updated
3. After the update: test the server, ideally with your private account first
4. Working? Keep the backup. Crash? Restore.

Test Your Backups

A backup that’s never been tested isn’t a backup. Once a month, run a test restore on a second server (or during a maintenance window on the production one):

1. Restore the backup
2. Start the server
3. Verify: does persistence load? Are camps still there? Do mods work?
4. If yes — strategy validated.

FAQ

Question: How big do my backups get?

A heavily built Chernarus map with 40+ active camps has a storage_1 of 100-300 MB. Compressed (.tar.gz or .zip) that becomes 30-100 MB. Plan around ~200 MB per snapshot.

Question: Can I import persistence from another server?

Yes, but only between identical maps and similar mod sets. A Chernarus storage_1 doesn’t work on Livonia. Mods that add custom items must be installed on both servers, otherwise items are stripped on load.

Question: How often does DayZ write persistence during runtime?

By default every few minutes (SaveOnHive interval) and on clean shutdown. Crashes can lose data between saves — so use short backup intervals on large servers.

Question: What about players who were online during a restore?

On stop, DayZ disconnects players cleanly — their session is saved. The restore reverts to the older state — players lose the time between backup and restore.

Question: Should I also back up the entire server directory?

Not necessary. Game files (DayZ binaries) are re-downloaded by Steam on boot. You only need the data you maintain: mission, persistence, configuration, profiles.

Question: What if the backup itself is corrupt?

Hence: test regularly, keep multiple versions. At least 3 generations: current, 1 day old, 1 week old. Damage from a corrupt backup is then bounded.

Question: Can I restore individual player inventories?

Not with vanilla tools. Services like CFTools Cloud log player items and offer “player restore” as a workaround. Vanilla requires a full server restore.

Question: Do backups cover the ban list and RCon?

bans.txt lives in battleye/ and should be backed up. The RCon password is in BEServer_x64.cfg — back it up too, but if lost you can simply set a new one.