Hi, To Bhaskar's point, there are many types of "journaling" that can be going on... usually not duplication of effort. The "journal" filesystems do NOT journal the "user data", but rather the information necessary to ensure that the file systems integrity is retained. That is what ext3 journals do. It is the job of GT.m to journal the data changes, so that if the file system is intact, it (GT.m) can recover the integrity of the database... However, since a "data base" is potentially made up of several globals (or global nodes), it is up to the application to ensure that all of the pieces needed to represent the application state is valid.
Cheers, --ldl ---------- Forwarded message ---------- From: K.S. Bhaskar <[EMAIL PROTECTED]> Date: May 27, 2005 11:25 AM Subject: Re: [Hardhats-members] Backup/journaling for OpenVista To: "Landis, Larry" <[EMAIL PROTECTED]> Larry -- I am traveling and can't post to Hardhats from my Blackberry. Would you please post it for me? Thank you very much. Journaling can occur at multiple levels, and the higher levels build on and require journaling at the lower levels. For example, file systems like ext3 implement journaling in order to be able to recover files after a crash. GT.M journaling requires the file system to be able to recover database and journal files in order to be able to recover the state of the database. I don't know what VistA journaling does, but I imagine that journaling at the application level might be used to restore and activate workflows, and would in turn require journaling at the MUMPS level to recover the state of the database. -- Bhaskar -----Original Message----- From: "LD \"Gus\" Landis" <[EMAIL PROTECTED]> Date: Fri, 27 May 2005 09:52:58 To:[email protected] Subject: Re: [Hardhats-members] Backup/journaling for OpenVista Hi, I can't speak to what journalling VistA does for the application view, but GT.m journalling records the SETs and KILLs of global values. Very likely conceptually different and independent. Cheers, --ldl On 5/27/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > If VistA does journaling, does this mitigate GTM journaling? I need to > learn more about GTM journaling and backup so I'm going through the GTM > docs. I guess I was also looking for other's input on things to consider in > this environment and any suggestions. Though I understand each configuration > will have different requirements or strategies for maintaining integrity. > > John > > > ----- Original Message ----- > From: "Kevin Toppenberg" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Friday, May 27, 2005 8:17 AM > Subject: Re: [Hardhats-members] Backup/journaling for OpenVista > > > > There are two levels of journaling. First, VistA > > itself offers some "journaling". Then there is GT.M > > journaling. Which are you interested in? > > > > Kevin > > > > --- [EMAIL PROTECTED] wrote: > > > > > Hello, > > > > > > Does anyone know if there is a document on > > > journaling and backup for > > > OpenVista (either generic issues or specifically for > > > GTM platforms?) > > > > > > Thanks > > > John > > > > > > ----- Original Message ----- > > > From: "Greg Woodhouse" > > > <[EMAIL PROTECTED]> > > > To: <[email protected]> > > > Sent: Thursday, May 26, 2005 3:09 PM > > > Subject: Re: [Hardhats-members] On Linux > > > distributions (was Re: How do I > > > start?) > > > > > > > > > > So am I. Wasn't Unix revolutionary, among other > > > things, becausre of the > > > > small size of its kernel? I'm as big a fan as > > > anyone of the "Do one > > > > thing and do it well" concept. > > > > > > > > --- Mark Street <[EMAIL PROTECTED]> wrote: > > > > > > > > > > And I for one am glad they are NOT part of the > > > kernel. Think of the > > > > > whole > > > > > thing as a model of a distant universe with the > > > kernel in the middle. > > > > > It is > > > > > the nature of things. > > > > > > > > > > This is the reason why some in the community > > > refer to Linux as > > > > > GNU/Linux. > > > > > > > > > > > > > > > > > A practical man is a man who practices the errors > > > of his > > > forefathers. --Benjamin Disraeli > > > > ==== > > > > Greg Woodhouse > > > > [EMAIL PROTECTED] > > > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------- > > > > This SF.Net email is sponsored by Yahoo. > > > > Introducing Yahoo! Search Developer Network - > > > Create apps using Yahoo! > > > > Search APIs Find out how you can build Yahoo! > > > directly into your own > > > > Applications - visit > > > > > http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 > > > >_______________________________________________ > > > > Hardhats-members mailing list > > > > [email protected] > > > > > > > > > https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------- > > > This SF.Net email is sponsored by Yahoo. > > > Introducing Yahoo! Search Developer Network - Create > > > apps using Yahoo! > > > Search APIs Find out how you can build Yahoo! > > > directly into your own > > > Applications - visit > > > > > http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 > > >_______________________________________________ > > > Hardhats-members mailing list > > > [email protected] > > > > > https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > > > > > > > > > > > > >__________________________________ > > Do you Yahoo!? > > Yahoo! Mail - You care about security. So do we. > > http://promotions.yahoo.com/new_mail > > > > > > ------------------------------------------------------- > > This SF.Net email is sponsored by Yahoo. > > Introducing Yahoo! Search Developer Network - Create apps using Yahoo! > > Search APIs Find out how you can build Yahoo! directly into your own > > Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 > >_______________________________________________ > > Hardhats-members mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by Yahoo. > Introducing Yahoo! Search Developer Network - Create apps using Yahoo! > Search APIs Find out how you can build Yahoo! directly into your own > Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 >_______________________________________________ > Hardhats-members mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/hardhats-members > -- LD Landis - N0YRQ - from the St Paul side of Minneapolis ------------------------------------------------------- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 _______________________________________________ Hardhats-members mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/hardhats-members Sent via Cingular Xpress Mail with Blackberry -- LD Landis - N0YRQ - from the St Paul side of Minneapolis ------------------------------------------------------- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 _______________________________________________ Hardhats-members mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/hardhats-members
