From: Olaf Titz (olaf@bigred.ka.sub.org)
Date: 03/21/93


From: olaf@bigred.ka.sub.org (Olaf Titz)
Subject: afio observations
Date: Sun, 21 Mar 1993 13:35:04 GMT

I'm switching from tar to afio for my backups, since I want better
support for compressed backups, and I've observed the following flaws:

afio (with -F) does buffer the entire disk before writing it out, no
matter which options I choose for -c and -f. This wastes a HUGE amount
of time, compared to tar where collecting the input files and writing
them out to disk is done simultaneously. Is there any way to get afio
into simultaneous writing?

The -K option is useless. Since Linux (provided enough memory) buffers
the entire disk, the afio disk buffer is compared against the Linux
disk buffer, instead of re-reading the disk.

afio appends the file names with .z instead of .Z although I'm using
compress, is this important/dangerous?

Olaf

-- 
        olaf titz     o       olaf@bigred.ka.sub.org      voice@49-721-60439
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karlsruhe germany   (_)<(_)      uknf@dkauni2.bitnet        happy linux user
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