[SOLVED] The problem when using resources in parallel

[Vasilisc]

The hardware server for Proxmox Backup Server is very powerful. Due to budget constraints, I was forced to use part of the server's capacity for another task - MySQL for Zabbix.

I had to allocate space for huge Zabbix MySQL tables in the same SafePlace pool that Proxmox Backup Server uses to store backups.

# zfs create SafePlace/zabbix

# zpool list

NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
SafePlace 106T 12.0T 93.5T - - 2% 11% 1.00x ONLINE -

# zfs list

NAME USED AVAIL REFER MOUNTPOINT
SafePlace 10.7T 83.0T 10.6T /mnt/datastore/SafePlace
SafePlace/zabbix 26.1G 83.0T 26.1G /mnt/datastore/SafePlace/zabbix

I got the problem.

Garbage collection failed: cannot continue garbage-collection safely, permission denied on: "/mnt/datastore/SafePlace/zabbix/mysql"

Help me please. What's the best way to solve the problem?

 

[Dunuin]

Maybe you need to create a dataset for your PBS datastore too? Like SafePlace/pbs and use this instead of just the root of the pool so SafePlace/zabbix isn't mounted inside your datastore?

 

[Vasilisc]

I decided to use the ZFS functionality of changing the mount point

zfs set mountpoint=/mnt/zabbix SafePlace/zabbix

# zfs get mountpoint SafePlace/zabbix

NAME PROPERTY VALUE SOURCE
SafePlace/zabbix mountpoint /mnt/zabbix local