| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 412.1 | | TOLEDO::VENNER | | Mon Feb 23 1987 13:34 | 11 |
| a short while ago i was trying to find out the format of the INDEXF.SYS
file and found nothing in any of the manuals. Not even the VMS
Internals and Data Structures book helped. So i created and removed
files and kept dumping the INDEXF.SYS to see if i could recognize
what was happening.
i isolated a few fields in the file headers sections, such as where
the file ids and the directory file id's and the filenames were
stored, but i finally gave up. hope you have better luck!
- marty
|
| 412.2 | INDEXF.SYS=File headers | JON::MORONEY | Light the fuse and RUN! | Mon Feb 23 1987 16:07 | 7 |
| I can't help too much, but, except for the first few blocks, INDEXF.SYS
contains the file headers, one per block (though some files use more than one
block in INDEXF.SYS). The first few blocks contain the home block and the boot
block of the volume. This is in the documentation somewhere, I can't remember
where at the moment.
-Mike
|
| 412.3 | | CAFEIN::PFAU | You can't get there from here | Mon Feb 23 1987 16:58 | 9 |
| What you need is the ODS2 specification. This document describes the
structure of an ODS2 disk. It's on the net someplace but I forget
where.
There are macros in LIB.MLB which describe the file header blocks in
INDEXF.SYS. BITMAP.SYS contains one bit for each cluster on the
disk. A '1' means it is in use, a '0' means it is free.
tom_p
|
| 412.4 | ods2 spec on enet | PEANO::GLASER | Steve Glaser DTN 226-7646 LKG1-2/A19 | Mon Feb 23 1987 19:57 | 3 |
| vaxwrk::sys$public:ods2.mem
|
| 412.5 | Use rms/or $qio acp interface | IE0002::BEELER | | Fri Feb 27 1987 21:16 | 8 |
| Probably shouldnt write any utilities based on the format found
in the ODS doc as some of the {reserved for future use} fields are
in fact in use {this being the future as compared to 1976 when the
spec came out}
Also its hard to believe that there are NO changes to the file system
in V5 {however small} which would probably invalidate your utility
anyway.
|
| 412.6 | ODS-2 information available!! | MUNIHT::MEYER | | Wed Apr 08 1987 10:37 | 6 |
| Hi there,
if your problem is still in "unsolved" state,please contact
via ENET MUNIHT::MEYER.
Perhaps i do have the stuff you need?!
Klaus
|