Docker/vfs文件夾大小

我的泊塢窗有問題。我已經下載了一個圖像，碼頭顯示其大小約600Mb。但是在磁盤上，在/ usr/lib/docker /中它使用的差不多是6Gb。Docker/vfs文件夾大小

這裏是像拉在我的文件夾：

      /.. 
    27.9 MiB [##########] /tmp 
    236.0 KiB [   ] /image 
    60.0 KiB [   ] /network 
    8.0 KiB [   ] /vfs 
e 4.0 KiB [   ] /volumes 
e 4.0 KiB [   ] /trust 
e 4.0 KiB [   ] /containers

這裏是圖像後拉：

      /.. 
    5.8 GiB [##########] /vfs 
    27.9 MiB [   ] /tmp 
    2.2 MiB [   ] /image 
    60.0 KiB [   ] /network 
e 4.0 KiB [   ] /volumes 
e 4.0 KiB [   ] /trust 
e 4.0 KiB [   ] /containers

圖像本身：

REPOSITORY     TAG     IMAGE ID   CREATED    SIZE 
docker.io/bitnami/mariadb latest    f5dbed792113  8 days ago   598.1 MB

和它的歷史：

IMAGE    CREATED    CREATED BY          SIZE    COMMENT 
f5dbed792113  8 days ago   /bin/sh -C#(nop) CMD ["/run.sh"]    0 B 
<missing>   8 days ago   /bin/sh -C#(nop) ENTRYPOINT &{["/app-entrypo 0 B 
<missing>   8 days ago   /bin/sh -C#(nop) EXPOSE 3306/tcp    0 B 
<missing>   8 days ago   /bin/sh -C#(nop) VOLUME [/bitnami/mariadb]  0 B 
<missing>   8 days ago   /bin/sh -C#(nop) ENV ALLOW_EMPTY_PASSWORD=no 0 B 
<missing>   8 days ago   /bin/sh -C#(nop) COPY dir:c5bea93fb9ce36dc47 3.758 kB 
<missing>   8 days ago   /bin/sh -c bitnami-pkg unpack mariadb-10.1.23 482.1 MB 
<missing>   8 days ago   /bin/sh -c install_packages libaio1 libc6 lib 12.29 MB 
<missing>   8 days ago   /bin/sh -C#(nop) LABEL maintainer=Bitnami <c 0 B 
<missing>   3 weeks ago   /bin/sh -C#(nop) ENTRYPOINT &{["/entrypoint. 0 B 
<missing>   3 weeks ago   /bin/sh -C#(nop) COPY dir:21a422cab8e9367936 10.17 kB 
<missing>   3 weeks ago   /bin/sh -C#(nop) ENV BITNAMI_IMAGE_VERSION=j 0 B 
<missing>   3 weeks ago   /bin/sh -C#(nop) ENV PATH=/opt/bitnami/nami/ 0 B 
<missing>   3 weeks ago   /bin/sh -c cd /tmp && gpg --keyserver hkp:/ 1.423 MB 
<missing>   3 weeks ago   /bin/sh -C#(nop) ENV GOSU_VERSION=1.10 GOSU_ 0 B 
<missing>   3 weeks ago   /bin/sh -c cd /tmp && gpg --keyserver hkp:/ 40.76 kB 
<missing>   3 weeks ago   /bin/sh -C#(nop) ENV TINI_VERSION=v0.13.2  0 B 
<missing>   3 weeks ago   /bin/sh -c cd /tmp && curl -sSLO https://na 16.77 MB 
<missing>   3 weeks ago   /bin/sh -C#(nop) ENV NAMI_VERSION=0.0.6-0  0 B 
<missing>   3 weeks ago   /bin/sh -c install_packages curl ca-certifica 34.3 MB 
<missing>   3 weeks ago   /bin/sh -C#(nop) LABEL maintainer=Bitnami <c 0 B 
<missing>   3 weeks ago               51.14 MB   from Bitnami with love

我是新來的Docker，這是正常的嗎？
我覺得很瘋狂。整個Linux虛擬機可能比這個mariadb映像更小。
我該如何解決這個問題？我的搬運工信息：

Containers: 0 
Running: 0 
Paused: 0 
Stopped: 0 
Images: 1 
Server Version: 1.10.3 
Storage Driver: vfs 
Execution Driver: native-0.2 
Logging Driver: journald 
Plugins: 
Volume: local 
Network: bridge null host 
Kernel Version: 2.6.32-042stab120.20 
Operating System: CentOS Linux 7 (Core) 
OSType: linux 
Architecture: x86_64 
Number of Docker Hooks: 2 
CPUs: 1 
Total Memory: 512 MiB 
WARNING: No oom kill disable support 
WARNING: bridge-nf-call-ip6tables is disabled 
Registries: docker.io (secure)

來源

2017-05-27 Sergei B.

對我來說，只有在磁盤上提高600MB：'3.4G \t/var/lib/docker/aufs' - >'4.0G \t/var/lib/docker/aufs'。你的碼頭1.10有點舊版本 – Robert

你看？這很奇怪。是的，我知道，但這個版本是最新的，我的VPS提供商支持。 –

而我沒有vfs目錄 – Robert