Re: [PEDA] Database Repair

2001-11-27 Thread HxEngr




Re: [PEDA] Database Repair

2001-11-26 Thread Clive . Broome



You could try increasing the size of the tracks and grid in your polygons to a
larger value - maybe 30 to 40 to 50 thou. If these primitives are too small it
increases the size of the database considerably and leads to unstable operation.
Another long term Protel bug. When is a primitive 'merge' for polygons going to
appear?






Jeff Adolphs [EMAIL PROTECTED] on 11/27/2001 08:52:52 AM

Please respond to Protel EDA Forum [EMAIL PROTECTED]

To:   Protel EDA Forum (E-mail) [EMAIL PROTECTED]
cc:(bcc: Clive Broome/sdc)

Subject:  [PEDA] Database Repair



Hello! I'm the one having Protel Crashes with the message 'Access
violation  I have read the Protel Knowledge Base and found I should
be doing Database Repair. Maybe the Protel Crashes are related to not
doing Database Repair.

On two large Database Files the Database Repair could not fix them. Does
Database Repair have problems repairing large designs?

Still working on why I get Protel Crashes, so far I have lowered Video
Acceleration, used Database Repair ( the design which has been crashing
was able to be fixed by Database Repair (although there is no way of
knowing if there was anything to fix), and gotten ALL the related Protel
Knowledge Base pages they had. Tomorrow I will look at the Main Board
and make sure the processor looks seated properly (kind of doubting the
processor is the problem since Microsoft Outlook ran good the last two
days, AutoCAD 2000 ran well also (didn't do much with AutoCAD 2000 today
though).

Jeff Adolphs
Lake Shore Cryotronics, Inc.
Westerville, Ohio






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Re: [PEDA] Database Repair

2001-11-26 Thread Abd ul-Rahman Lomax

At 05:52 PM 11/26/01 -0500, Jeff Adolphs wrote:
Hello! I'm the one having Protel Crashes with the message 'Access
violation  I have read the Protel Knowledge Base and found I should
be doing Database Repair. Maybe the Protel Crashes are related to not
doing Database Repair.

On two large Database Files the Database Repair could not fix them. Does
Database Repair have problems repairing large designs?

Well, obviously, the larger the database the more possibility of an 
unrepairable error. Other than that, I don't know. But if your memory is 
limited to 64K as mentioned before, perhaps this could be a problem.

Normally it is not necessary to repair databases, but if you have been 
having frequent crashes, this could certainly corrupt a database.

I've never seen a damaged .ddb, though.

Ddbs should not be allowed to grow to enormous sizes, in my opinion. 
Periodically delete unnecessary files (and empty the ddb recycle bin), and 
I recommend setting automatic compact on close. (an option under the Client 
menu, that mysterious down-arrow in the upper left corner of the screen. At 
least that is the default position, I don't know if it can be moved.

Files are not really deleted from the .ddb until the Recycle Bin is 
emptied, and even then the space allocated to them remains, thus the .ddb 
continues to grow. Compacting the database recovers this space.

Still working on why I get Protel Crashes, so far I have lowered Video
Acceleration, used Database Repair ( the design which has been crashing
was able to be fixed by Database Repair (although there is no way of
knowing if there was anything to fix), and gotten ALL the related Protel
Knowledge Base pages they had. Tomorrow I will look at the Main Board
and make sure the processor looks seated properly (kind of doubting the
processor is the problem since Microsoft Outlook ran good the last two
days, AutoCAD 2000 ran well also (didn't do much with AutoCAD 2000 today
though).

That some programs, or even all programs but one, is no proof that there is 
no hardware problem. Obviously, if all crashes happen with one program 
only, we will suspect the program rather strongly, but it is possible that 
a memory problem, for example, is pattern sensitive or that some other 
obscure interaction between the program and the hardware is bringing a 
fault to the fore.

But, once again, the most likely culprit is the video system, sorry to say. 
It's a shame if one can't run an $8000 piece of software because someone 
tried to save a much smaller sum of money by not using video RAM but 
instead sharing user RAM. It is a near certainty that these problems will 
go away if you install Protel on a better computer. It doesn't have to be 
an expensive one; I could probably buy something better than I am using now 
for a few hundred dollars, excluding stuff like the hard drives and other 
transferable peripherals. Hmmm...

So why am I putting up with my aging K6-450? Inertia. Not much else. Well, 
it's always a major interruption to install everything on a new system, get 
the network talking sense, etc




[EMAIL PROTECTED]
Abdulrahman Lomax
Easthampton, Massachusetts USA

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Re: [PEDA] Database Repair

2001-11-26 Thread Abd ul-Rahman Lomax

At 10:07 AM 11/27/01 +1000, [EMAIL PROTECTED] wrote:


You could try increasing the size of the tracks and grid in your polygons to a
larger value - maybe 30 to 40 to 50 thou. If these primitives are too small it
increases the size of the database considerably and leads to unstable 
operation.
Another long term Protel bug.

Well, by its nature, a polygon pour with fine track creates a whole huge 
pile of primitives. That's intrinsic to the pour concept, as long as it is 
purely positive (which makes it possible to use the same DRC routines, for 
example).

  When is a primitive 'merge' for polygons going to
appear?

Mr. Broome is referring, I think, to enabling Protel to do RS-274X 
positive/negative merges, which would greatly decrease database and plot 
size where pours are involved, and it would also solve certain other pour 
problems. I have detailed in other posts how this could be done *without* 
requiring negative checking, a rather complex process. At the same time, 
the same process would make inner planes as DRCable as positive copper pours.

[EMAIL PROTECTED]
Abdulrahman Lomax
Easthampton, Massachusetts USA

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Re: [PEDA] Database Repair

2001-11-26 Thread Bagotronix Tech Support

 So why am I putting up with my aging K6-450? Inertia. Not much else. Well,
 it's always a major interruption to install everything on a new system,
get
 the network talking sense, etc

True!  This is one on-going problem the PC industry has ignored.  As long as
they continue to ignore this problem, people will delay upgrading as long as
possible.  You would think they would realize they could double their sales
if they made transferring and upgrading easier.

My policy is to buy PCs that are sufficiently powerful and reliable that I
don't have to upgrade more often than every 4 years.  So far, this strategy
has worked:

1987:  first PC, a 10MHz 286
1992:  2nd PC, a 33MHz 486DX
1996:  3rd PC, a 200MHz Dell Pentium (my first use of Protel was on this PC)
2001:  4th PC, a 1GHz dual-PIII generic white box
2005:  who knows?

Of course, I don't count that lemon Compaq Presario 4640 I bought 3 years
ago.  That was for home use, and has long since been replaced by a 466MHz
Celeron generic white box.

If upgrading were easier, I might do it every 2 or 3 years.  My latest
upgrade (Dell to white box) took 1 week out of my work schedule to configure
network settings, load all my apps, transfer data files, and verify the
installs and transfers.  This seems like a lot of time, but I wanted to make
sure everything worked before I stopped using the old workstation.
Verifying this stuff takes lots of time!

Best regards,
Ivan Baggett
Bagotronix Inc.
website:  www.bagotronix.com


- Original Message -
From: Abd ul-Rahman Lomax [EMAIL PROTECTED]
To: Protel EDA Forum [EMAIL PROTECTED]
Sent: Monday, November 26, 2001 10:14 PM
Subject: Re: [PEDA] Database Repair


 At 05:52 PM 11/26/01 -0500, Jeff Adolphs wrote:
 Hello! I'm the one having Protel Crashes with the message 'Access
 violation  I have read the Protel Knowledge Base and found I should
 be doing Database Repair. Maybe the Protel Crashes are related to not
 doing Database Repair.
 
 On two large Database Files the Database Repair could not fix them. Does
 Database Repair have problems repairing large designs?

 Well, obviously, the larger the database the more possibility of an
 unrepairable error. Other than that, I don't know. But if your memory is
 limited to 64K as mentioned before, perhaps this could be a problem.

 Normally it is not necessary to repair databases, but if you have been
 having frequent crashes, this could certainly corrupt a database.

 I've never seen a damaged .ddb, though.

 Ddbs should not be allowed to grow to enormous sizes, in my opinion.
 Periodically delete unnecessary files (and empty the ddb recycle bin), and
 I recommend setting automatic compact on close. (an option under the
Client
 menu, that mysterious down-arrow in the upper left corner of the screen.
At
 least that is the default position, I don't know if it can be moved.

 Files are not really deleted from the .ddb until the Recycle Bin is
 emptied, and even then the space allocated to them remains, thus the .ddb
 continues to grow. Compacting the database recovers this space.

 Still working on why I get Protel Crashes, so far I have lowered Video
 Acceleration, used Database Repair ( the design which has been crashing
 was able to be fixed by Database Repair (although there is no way of
 knowing if there was anything to fix), and gotten ALL the related Protel
 Knowledge Base pages they had. Tomorrow I will look at the Main Board
 and make sure the processor looks seated properly (kind of doubting the
 processor is the problem since Microsoft Outlook ran good the last two
 days, AutoCAD 2000 ran well also (didn't do much with AutoCAD 2000 today
 though).

 That some programs, or even all programs but one, is no proof that there
is
 no hardware problem. Obviously, if all crashes happen with one program
 only, we will suspect the program rather strongly, but it is possible that
 a memory problem, for example, is pattern sensitive or that some other
 obscure interaction between the program and the hardware is bringing a
 fault to the fore.

 But, once again, the most likely culprit is the video system, sorry to
say.
 It's a shame if one can't run an $8000 piece of software because someone
 tried to save a much smaller sum of money by not using video RAM but
 instead sharing user RAM. It is a near certainty that these problems will
 go away if you install Protel on a better computer. It doesn't have to be
 an expensive one; I could probably buy something better than I am using
now
 for a few hundred dollars, excluding stuff like the hard drives and other
 transferable peripherals. Hmmm...

 So why am I putting up with my aging K6-450? Inertia. Not much else. Well,
 it's always a major interruption to install everything on a new system,
get
 the network talking sense, etc




 [EMAIL PROTECTED]
 Abdulrahman Lomax
 Easthampton, Massachusetts USA


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