🚀 go-pugleaf

In article <48CF425A18%news@joking.demon.com.uk> Darren Salt wrote:
> In message <48cf1524cbreghems@argonet.co.uk> Reg Hems wrote:
>> Jon Wright <jon@textor.com> wrote:

>>> .... my 2 GB drive is partitioned to 4, 512 MB partitions and 
>>> even these have about 100MB wasted space on each (checked using 
>>> RealCount).....
>> My guess is that your LFAU is 2K. Reinit to 499MB -> 1K LFAU.
> It will be at least that, with that partition size.

>> I used PackDisc 0.09 (Steve Lee 1996) and the wasted space
>> recovered was phenomenal. I could dig out my notes (or my posting) 
>> when I reinitialised the 500+500+42 Mb partitions on my SCSI 1 Gb 
>> HD to 499+499+44 Mb.
> Go on. You know that you want to. :-)

Oh, OK then. If you insist ;)

I have retrieved various postings over the last 8 months and
rearranged relevant bits in 'some' logical order:
                         o-o-o-o

Message-ID: <4838f44495reghems@argonet.co.uk> 19 Apr 1998 00:42
Message-ID: <483c0870e4reghems@argonet.co.uk> 25 Apr 1998 00:11

> Someone on one of the a.a.* groups was talking quite recently 
> about formatting hard drives to slightly below their actual 
> size, so that the size of a directory (LFAU) is changed from 
> 2048 => 1024, effectively saving 15 Mb on a 500 Mb HD.

I have a 420\1 with a Watford Electronis IDE interface and a 
504 Mb Maxtor (currently 528.482.304 bytes). LFAU 2K. If I could
reinitialise to below 500 MB, it would reduce my LFAU to 1K.

9 months ago my 'wasted sectors' was 20.8% (105,893,888 bytes).
I reduced it gradually to 9.4% with !PackDisc by Steve Lee.

!RealCount by Sergio Monesi gives:

 Files (11664):       459,806,441  (88.3%)
 Directories (2435):    4,986,880   (1.0%)
 Wasted sectors:       49,057,280   (9.4%)
 Sectors rounding:      7,090,967   (1.4%)
 Total:               520,941,568   (100%)

> .... has been working well until just recently. All of a sudden 
> I've been getting the message: "Internal error. No stack for trap
> handler: divide by zero:pc=000679C0:registers at 0009A70C"

My first course of action would be to run FSCK (by Sergio Monesi) to
check whether your map is corrupted. FSCK is something nobody should
be without. I use it daily because I am struggling with 'free' memory.
When my free HD space drops below say 5.5 Mb, deletes of any
significant size will corrupt my Free Space map.

FSCK tries to relink lost files in the directory $.lost+found. In one
extreme case, FSCK recovered around 1 MB and I retrieved some 250K of
files which I thought I had lost.

.....If I do a *verify it stops with a "Disc error 16 at 4" beyond 
&1F7EE000.

.....Last year (1997) I reported that my machine would freeze
relatively frequently ....All these hangups have now disappeared 
since about a month ago.

The only explanation I have is that since the beginning of this year 
I have been running Fsck at least twice daily (to repair corrupt free
space maps), regular *compact, major housekeeping by merging small 
files and frequently running a few directories, containing a lot of
textfiles, through Steve Lee's !PackDisc, which removes MEGA bytes 
of 'wasted sectors'. Highly recommended. 

Message-ID: <486e810906reghems@argonet.co.uk> 01 Aug 1998 00:19

.....About wasted sectors:

This was 20.8% (105,893,888 bytes) on 15 Jul 1997 
is now    8.8% ( 45,814,240 bytes) on 01 Aug 1998.

Message-ID: <48721ed328reghems@argonet.co.uk> 08 Aug 1998 00:51

.... Castle SCSI card for my 420/1 and... 1 Gb Quantum Fireball...
 
I created 500+500+42 Mb partitions on my SCSI HD, then MOVED all 
of my 504 Mb IDE HDisk and with Steve Lee's !PackDisc recovered 
9.5 Mb in wasted sectors :-))  

I found that the 500 Mb partitions had an LFAU of 2048 bytes.
So I reduced partition 1 by 1 Mb to 499 Mb (LFAU 1024 bytes).
Transferred partition 0 (500 Mb) to 1 (499 Mb) and *gained*
17,367,040 bytes :))) 

Then used Steve Lee's !PackDisc to save another 7.25 MB in wasted
sectors.
                          o-o-o-o

> Hmm... you might be interested to know of one PackDisc bug of 
> which I'm aware - it doesn't reset Compact%. Look for ":Compact " 
> (it should be in line 3700) and append to that line: Compact%=FALSE

Thank you :)

 3700: OSCLIFS$+":Compact "+Drive$:Compact%=FALSE

When I was chronically short of free space, PackDisc would 'compact'
almost every file. I just tried it on !Voyager (68,283,904 bytes)
and it saved 1,414,144 bytes, remaining wasted space 1,466,880 bytes,
but it did not 'compact' once. Presumably because I have 378 Mb free 
on a 499 Mb partition.
�

-- 
Reg Hems ZFC LXV2 \_
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      reghems@argonet.co.uk |