Dbpause doesn't close files. It blocks updates by UniData processes to UniData 
files. This is via a flag in shared memory that all UniData processes access. 
We have no control as to how operating systems manage file system files.

Wally Terhune
Technical Support Engineer
Rocket Software
4600 South Ulster Street, Suite 1100 **Denver, CO 80237 **USA
t: +1 720 475 8055 **e: wterh...@rocketsoftware.com **w: rocketsoftware.com/u2




-----Original Message-----
From: u2-users-boun...@listserver.u2ug.org 
[mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of David Wolverton 
Sent: Thursday, August 09, 2012 7:35 AM
To: 'U2 Users List'
Subject: Re: [U2] dbpause/dbresume or stopud/startud

Has the issue on Windows been resolved?  Our customers reported that UniData 
maintained 'open files' at a dbpause, which still made the backup difficult 
with a dbpause.

-----Original Message-----
From: u2-users-boun...@listserver.u2ug.org
[mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Wally Terhune
Sent: Wednesday, August 08, 2012 5:27 PM
To: U2 Users List
Subject: Re: [U2] dbpause/dbresume or stopud/startud

RFS with TP has been available in UniData for 15-20 years too.
I understand your issues. I'm just saying you do have the ability in UniData to 
generate a consistent backup (physical and logical) using dbpause.

Wally Terhune
Technical Support Engineer
Rocket Software
4600 South Ulster Street, Suite 1100 **Denver, CO 80237 **USA
t: +1 720 475 8055 **e: wterh...@rocketsoftware.com **w:
rocketsoftware.com/u2





-----Original Message-----
From: u2-users-boun...@listserver.u2ug.org
[mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Wjhonson
Sent: Wednesday, August 08, 2012 3:53 PM
To: u2-users@listserver.u2ug.org
Subject: Re: [U2] dbpause/dbresume or stopud/startud


That's the rub isn't it?

We have a few thousand programs written over 30 years, and only a limited 
staff, and users always want more.
Users don't see the need to go back and *fix* code that's working, and/or are 
not willing to pay you to do it.

It's a cost-benefit issue.  For a site that doesn't *have* to be 24-7 but can 
be say 22-7, it's safer to shutdown, then backup.
You can't always control every piece of code someone has written.



-----Original Message-----
From: Wally Terhune <wterh...@rocketsoftware.com>
To: U2 Users List <u2-users@listserver.u2ug.org>
Sent: Wed, Aug 8, 2012 2:18 pm
Subject: Re: [U2] dbpause/dbresume or stopud/startud


If you have put transaction processing semantics in your code you will have 
logical consistency with dbpause. For RFS enabled systems, dbpause forces a 
checkpoint.

Wally Terhune
Technical Support Engineer
Rocket Software
4600 South Ulster Street, Suite 1100 **Denver, CO 80237 **USA
t: +1 720 475 8055 **e: wterh...@rocketsoftware.com **w:
rocketsoftware.com/u2




-----Original Message-----
From: u2-users-boun...@listserver.u2ug.org
[mailto:u2-users-boun...@listserver.u2ug.org]
On Behalf Of Wjhonson
Sent: Wednesday, August 08, 2012 10:08 AM
To: u2-users@listserver.u2ug.org
Subject: Re: [U2] dbpause/dbresume or stopud/startud


You get an extra benefit from stopud and startud in that your database will be 
consistent.
dbpause does not enforce consistency

Personally I would never suggest using dbpause to take a snapshot because of 
that issue.
You're never guarenteed that you have a clean consistent copy.


-----Original Message-----
From: John Jenkins <u2g...@btinternet.com>
To: 'U2 Users List' <u2-users@listserver.u2ug.org>
Sent: Wed, Aug 8, 2012 6:02 am
Subject: Re: [U2] dbpause/dbresume or stopud/startud


"dbpause" and "dbresume" allow any background processes (e.g. PHANTOM or WebDE
(Redback)) to continue running. You do not have to have a restart procedure.
Additionally, as long as your backup methodology is brief - a SAN "snap" or a 
mirrored drive split - then anyone using Telnet, UniObjects or ODBC not even

notice and can continue uninterrupted. Stopping UniData menas terminating those 
sessions

I'd look at what is blocking your dbpause - there is a Tech Tip in the U2
knowledgebase.- search on "dbpause" - you should find SFMA-13082.

Regards

JayJay

-----Original Message-----
From: u2-users-boun...@listserver.u2ug.org
[mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of 
thomas.bo...@firstgroup.com
Sent: 26 July 2012 10:34
To: u2-users@listserver.u2ug.org
Subject: [U2] dbpause/dbresume or stopud/startud
Importance: High

U2users,

Will I get the same benefits by using stopud and startud as oppose to dbpause 
and dbresume? The reason for my question is that my server is running unidata
7.2 but 50% of the time cannot resume and stays in dbpause state long after 
backup?

Regards,

Thomas Boadu | IS Systems Manager


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