Michael Stowe wrote:
>> Another thing about BackupPC is that by my reading, new files are
>> first written to the PC area, then pool links are created by
>> BackupPC_link. This suggests that backing up the pool last might
>> improve performance, because it is likely to be more fragmented.
>
> Let me just say ... huh? What file system are you using that
> fragmentation is a significant issue?
With backuppc the issue is not so much fragmentation within a file as
the distance between the directory entry, the inode, and the file
content. When creating a new file, filesystems generally attempt to
allocate these close to each other, but when you link an existing file
into a new directory, that obviously can't be done so you end up with a
lot of long seeks when you try to traverse directories picking up the
inode info.
--
Les Mikesell
[email protected]
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