Acronis Storage: "Free storage space check result: -5 (No space/quota exceeded while local file io)" error

Symptoms

Backup or storage migration fails.

In Acronis Backup Gateway logs, you see this error:

30-08-17 23:18:12.202 fes_statvfs: '/mnt/vstorage/vols/acronis-backup/storage': {.frsize = 4096, .blocks = 1056846570, .bfree = 50127292}
30-08-17 23:18:12.202 sess#407.req#16547: failed: free storage space check result: -5 (No space/quota exceeded while local file io)
30-08-17 23:18:12.202 sess#407.req#16547: completed with err = -5 (No space/quota exceeded while local file io)

Cause

Your storage is running out of space.

You can check space utilization with the df command:

[root@node-1 ~]# df -h

Filesystem                   Size  Used Avail Use% Mounted on

.....

vstorage://support           590G  566G  23.6G   96% /mnt/vstorage

 

 

If there is less than 5% of free space, all write operations are blocked.

In case you are running Acronis Storage migration, if there is less than 10% of free space on your storage, migration is suspended. 

Solution

Free up space in your storage or expand it: