LinkCount On ODS-5 Volumes

[Robert Atkinson]

Anyone come across the LinkCount setting on ODS-5 files? :-

PARAMS.DAT;25 File ID: (12051,3,0)
Size: 15/69 Owner: [1,1]
Created: 8-FEB-2005 08:09:56.32
Revised: 8-FEB-2005 08:10:15.80 (2)
Expires:
Backup:
Effective:
Recording:
Accessed:
Attributes:
Modified:
Linkcount: 1

Anyone know what this is? There's also an undocumented DIR/LINKCOUNT qualifier as well!

Rob.

[Jan van den Ende]

Rob,

ODS-5 supports *UX-style links, so I am not surprised that there also is a way to keep track of them.

fwiw,

Proost.

Have one on me.

Jan

[Kris Clippeleyr]

Rob,

Me thinks it has someting to do with the (also new, and hardly documented) qualifier
/VOLUME_CHARACTERISTICS=[NO]HARDLINKS
for the INITIALIZE command.

Regards,
Kris (aka Qkcl)

[Ian Miller.]

http://h71000.www7.hp.com/doc/731FINAL/6657/6657pro_003.html#index_x_169

[Uwe Zessin]

Right, now it should be less likely to kill the primary entry when there are still alternate entries to the file. This has improved over time, but before links existed, there still were some holes:

$$ write sys$output f$getsyi("version")
V6.2-1H3
$$
$$ create a.tmp
*EXIT*
$$ set file/enter=b.tmp a.tmp
$$ directory/size a.tmp,b

Directory USER_x:[ZESSIN]

A.TMP;1 0
B.TMP;1 0

Total of 2 files, 0 blocks.
$$
$$ delete a.tmp;
$$ directory/size a.tmp,b

Directory USER_x:[ZESSIN]

B.TMP;1 no such file

Total of 1 file, 0 blocks.
$$

--
On a different system with a disk that has hard links enabled, I get:

$ delete a.tmp;
$ dir/size a.tmp,b

Directory USER_y:[ZESSIN]

B.TMP;1 0

Total of 1 file, 0 blocks.
$

[Robert Atkinson]

Closed