我在考试上问了下列问题:
在 ext3 文件系统中, 标记的数量高于 i- nodes 的数量。 em>
我不得不用真或假的回答来解释
我的回答是:
这是虚假的, 因为标记是目录之间的链接, 而基本上一切都是一个 i- 节点( 甚至一个目录), 所以 # i- nodes & gt; # 标记 。 em>
然而,我还没有将ext3文件系统加起来。 是否我漏掉了什么,或者我的答案是正确的?
我在考试上问了下列问题:
在 ext3 文件系统中, 标记的数量高于 i- nodes 的数量。 em>
我不得不用真或假的回答来解释
我的回答是:
这是虚假的, 因为标记是目录之间的链接, 而基本上一切都是一个 i- 节点( 甚至一个目录), 所以 # i- nodes & gt; # 标记 。 em>
然而,我还没有将ext3文件系统加起来。 是否我漏掉了什么,或者我的答案是正确的?
由于下列原因,我们很可能有更多的凹痕:
但是,你可以有硬链接。所以你可以合理地有很多 凹痕指向同一个线条。
缩略语数量比干净未挂载的文件系统中的线条数量高ways 。
考虑 : 每一个信条( 不包括通过打开文件控件保存的未连接文件 - 这些文件在干净的卸载中清除, 或在不干净的卸载后恢复过程中清除) 至少有一个与此相关。 每个目录信条至少有两个链接 - 母目录( 或它自己的 < code>. code>, 根的链接) 和 < code>. code> 的链接。 此外, 其它目录对每个子目录 < code> 都有附加的通过。 code> dentry 。 code> 。
因此,在绝对最低水平上,比阴极多出一丁二分之一(对于只有根目录的金融服务而言)。额外的目录和硬链接使这一点进一步膨胀。
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