Re: [Dump-users] index file

[Stelian P. <st...@po...>]

On Tue, Mar 30, 2004 at 10:49:29PM +0200, Dick Visser wrote:

> Reading the previous message:
> 
> > Subject: [Dump-users] Dumping to another hard disk
> 
> I saw that the -A option is used. As a notorious no-doc-reader, I did not
> know about this option but it appears that this is to point to a TOC file.
> 
> Whenever I use restore to get files back from f.i. a DDS4 tape, the file
> is always found rather fast using the -i mode, but extracting the actual
> file from tape sometimes takes ages.
> I guess this is because restore does not have an index file.

Yes.

> Am I correct in assuming that using -A with both dump and restore will
> yield a faster restore of single files/dirs?

No.

-A creates a TOC, which is not a tape index, just merely a list of inodes which
are in the backup. This option can be used when you want to find quickly on
which tape you did save a given file, and you have the TOCs somewhere on the
disk. The only use of the TOC file is in 'restore -t' mode.

However, the index file you're searching for does exist, and it's called QFA (Quick
File Access). See the -Q option in dump and restore man pages.

Stelian.
-- 
Stelian Pop <st...@po...>