当我在我的机器上执行 df -h 命令时，我发现了以下大小。谁能帮我这个 8E 大小是什么意思以及该文件系统的大小到底是什么。
xx.xx.xx.xxx:/nfsdat nfs4 8.0E 6.2G 8.0E 0% /home/logs
~ $ df -hT
Filesystem Type Size Used Available Use% Mounted on
overlay overlay 78.6G 45.6G 29.6G 61% /
tmpfs tmpfs 64.0M 0 64.0M 0% /dev
tmpfs tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
shm tmpfs 64.0M 0 64.0M 0% /dev/shm
/dev/sda3 ext4 78.6G 45.6G 29.6G 61% /etc/hosts
/dev/sda3 ext4 78.6G 45.6G 29.6G 61% /dev/termination-log
/dev/sda3 ext4 78.6G 45.6G 29.6G 61% /etc/hostname
/dev/sda3 ext4 78.6G 45.6G 29.6G 61% /etc/resolv.conf
xx.xx.xx.xxx:/nfsdata
nfs4 8.0E 6.2G 8.0E 0% /home/logs
tmpfs tmpfs 7.8G 12.0K 7.8G 0% /run/secrets/kubernetes.io/serviceaccount
tmpfs tmpfs 7.8G 0 7.8G 0% /proc/acpi
tmpfs tmpfs 64.0M 0 64.0M 0% /proc/kcore
tmpfs tmpfs 64.0M 0 64.0M 0% /proc/keys
tmpfs tmpfs 64.0M 0 64.0M 0% /proc/latency_stats
tmpfs tmpfs 64.0M 0 64.0M 0% /proc/timer_list
tmpfs tmpfs 64.0M 0 64.0M 0% /proc/sched_debug
tmpfs tmpfs 7.8G 0 7.8G 0% /proc/scsi
tmpfs tmpfs 7.8G 0 7.8G 0% /sys/firmware