kumar wrote: > Hi, I am using jbase5.0.6 and T24 R07. At the time of user login if my > server shutdown due to power failer or other reason (without logout > the user) the jbase files which is using by my user has got curruted > after reboot the server. Same problem i am facing in ERM Mirroring > data of AIX server. Please any body can give me idia about this > problem. > > --~--~---------~--~----~------------~-------~--~----~ > Please read the posting guidelines at: > http://groups.google.com/group/jBASE/web/Posting%20Guidelines 1) You cannot use ERM mirroring with jBASE databases, all you are doing is mirroring the file system updates, so if the file is corrupted on the master it will be faithfully corrupted on the remote copy. Basically all you are doing is wasting computing power and money on a useless backup system (as you have just discovered). You can search this forum (as the posting guidelines suggest) for information on corrupt files - there are lots of posts about why you cannot use things like disk mirroring, tar, etc. This should really have been explained to you before you tried to implement such a solution.
2) If your files are getting corrupted without having a power-failure, make sure that you are not issuing commands like 'kill -9' on processes. Again there are lots of past posts on this subject - use the group search facility. Next, if you are having to reboot because of power failure, immediately go out and buy a UPS. This will be a lot better investment than the money spent on ERM. Finally, you have two machines so implement Transaction Journaling replication, which will give you a reliable duplication of your database. Such things have to be done with the application (jBASE in this case) because otherwise you cannot guarantee that transactions are only marked complete once they are duplicated on the remote system; when you cannot do this, your data duplication is pretty much worthless even if you can do it without duplicating file corruption. Jim --~--~---------~--~----~------------~-------~--~----~ Please read the posting guidelines at: http://groups.google.com/group/jBASE/web/Posting%20Guidelines IMPORTANT: Type T24: at the start of the subject line for questions specific to Globus/T24 To post, send email to [email protected] To unsubscribe, send email to [email protected] For more options, visit this group at http://groups.google.com/group/jBASE?hl=en -~----------~----~----~----~------~----~------~--~---
