The error when creating a large virtual disk in PVE 8.3.

[lhzjack]

Formatting '/var/lib/vz/images/104/vm-104-disk-0.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off preallocation=metadata compression_type=zlib size=34359738368000 lazy_refcounts=off refcount_bits=16
qemu-img: Failed to flush the refcount block cache: File too large
TASK ERROR: unable to create VM 104 - unable to create image: qemu-img: /var/lib/vz/images/104/vm-104-disk-0.qcow2: The image size is too large for file format 'qcow2' (try using a larger cluster size)

 

[yaoshengyi]

File size limit on the file system

 

[lhzjack]

my file system is etx4

File size limit on the file system

 

[yaoshengyi]

or try using a larger parameter “cluster_size=131072” ？

 

[fabian]

you probably need to create that image manually using qemu-img and then `qm rescan`, until https://bugzilla.proxmox.com/show_bug.cgi?id=1989 is implemented

 

[lhzjack]

thanks ,
The maximum size of a single file in EXT4 is 16TB.

I need format xfs