John Cassidy wrote: We crashed last Friday, 02/13/04 (it would be on Friday the 13th!), and a subsequent series of `guide`s (wufa) indicated that I had 22 damaged UniData files. I was able to `fixfile` about half of them; the other half had group errors, such as: "Group 65056, block 65057 has incorrect group number 0". This indicates that the OS has layed a block of ascii 0s into the middle of your UniData file. There isn't anything there for any UniData utility to recover (in that group). The group structure has been destroyed as well as the data. Starting in UniData 6.0, you can use a single command to restore the group structure to that group - (no data, of course) - and then access the rest of the file normally - assuming all of the other groups are intact. $UDTBIN/fileview -g65056 -zv STUDENT.ACAD.LEVELS (in this example) -g group number -z zero/zap -v verify (prompt - are you sure you want to zero the group) Prior to 6.0, you could use a series of fileview commands to poke a number of bits into the block to make the group OK. This is documented in the white paper that Colin refers to (subsequent email on this thread). This paper has been around for a couple of years - included on prior versions of the survival kit cd. I've lectured on this at the last two (or three) IBM/Informix technical conferences also. Wally Terhune Manager - U2 Advanced Technical Support IBM Data Management Solutions Tel: 303.294.4866 Fax: 303.294.4832 [EMAIL PROTECTED] www.ibm.com/software/data/u2/support - Open, Query, Update, Search - Online!-- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
