<[EMAIL PROTECTED]> wrote: > Hi, > big question: > > What dump do you use to backup that raw device? > linux-dump? > and this device is used by infomix as a raw data-device without an > ext2 filesystem on it? > yes? >
Yes, I'm using linux "dump". I tried to mke2fs on the filesystem /dev/sda13 before I build the informix raw file on it, therefore I still can use "dumpe2fs" on that partition after the informix raw file build. > You won't be able to restore something meaningfull from this dumps at all. > > Linux dump is designed only for dumping ext2 filesystems. > What you are trying is plainly asking for trouble at restore-time. > To get a valid backup of your database backing up the raw device > you will have to shut down the database-server-process before > saving the data. (If you don't do that you will miss lots of data > stored in the internal buffers of the process.) Yap, in this case I will always bring down the informix database process before I run "amdump". > And then you need to take a raw image of the partition with a tool > like dd. > Neither any version of dump nor tar will give you > a correct backup of this data. > A much safer way will be to let informix make a database-export/ > dump to another disk and then backup this dump. I'll consider ur suggestion. > Paul Bijnens <paul.bijnens@x> wrote: > > I'm not an Informix user, but DUMP is meant for Unix-filesystems IIRC, > not Informix databases. Are you sure the backups contain useful > data? Did DUMP never complain? Is the size of the backupimage of the > device what you would expect (uncompressed - compressed)? > I'm not sure whether the backups contain useful data or not. That's the reason why I need to restore back and verify. DUMP never complain(with the condition that AMANDA user belongs to group "disk" and "informix" as the supplementary group). > The way to backup a raw device with amanda is using a GNUTAR-wrapper > script that does a "dd" instead of gnutar when given the device... > (I assume, you could just as wel use DUMP wrapper script and rename > your dump program and replace it with this script.) > May I know where can I find "GNUTAR-wrapper" and what should I change in my amanda.conf in order to use the script. I prefer not to rename linux "dump" command to other name. Any other solutions ? Thank Christoph & Paul __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com