Vault backend Full

Getting the error
failed to persist packed storage entry: open /vault/data/logical/6e96d526-615a-5a6c-06ad-f8987d48b11c/packer/buckets/_173: no space left on device.

We are on Vault 1.5.5 on Openshift platform.
I have provisioned a PVC of 10Gi for /vault/data. Anyhelp is helpful.

df -ih
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/nvme2n1 640K 11 640K 1% /vault/audit
/dev/nvme1n1 640K 640K 0 100% /vault/data

where as df -k is showing as below:
sh-4.4$ df -k
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/nvme2n1 10255636 36888 10202364 1% /vault/audit
/dev/nvme1n1 10255636 2357852 7881400 24% /vault/data

Question is, how to reduce inodes and tune the storage ?
Any help is appreciated.