Hello,

with a Backupprogram are intensively hardlinks used. These can be provided
however on NSS volumes not at will. here a small test:

for c in $(seq 1 9); do for a in a b c d e f g h i j k l m n o p q r s t u v
w x y z; do name1="$a$a$a$a$a$a$a$a$a$a$a$a"; name2=${name1:1:$c}; echo $a
$c; touch $name2; for b in $(seq -w 1 199); do ln $name2 $name2.$b; done;
done; done 2>error

Depending upon length of the file names only 19 to 43 hardlinks are
produced.

-rw-rw-rw- 43 root root 0 Dec 6 13:46 a.001
-rw-rw-rw- 41 root root 0 Dec 6 13:46 aa.001
-rw-rw-rw- 38 root root 0 Dec 6 13:46 aaa.001
-rw-rw-rw- 36 root root 0 Dec 6 13:47 aaaa.001
-rw-rw-rw- 35 root root 0 Dec 6 13:47 aaaaa.001
-rw-rw-rw- 33 root root 0 Dec 6 13:47 aaaaaa.001
-rw-rw-rw- 31 root root 0 Dec 6 13:47 aaaaaaa.001
-rw-rw-rw- 30 root root 0 Dec 6 13:47 aaaaaaaa.001
-rw-rw-rw- 19 root root 0 Dec 6 13:48 aaaaaaaaa.001