Hello Arno, > >> I was poking around the manual and it looks like VolWrite is incremented > >> each time the maximum file size is reached. From the manual it says that > >> the default is 1GB, although I did see a message that stated the default > >> was 2GB. It appears that all of my volumes have volwrites > 3999999. I > >> have one tape that has over 30,000,000 VolWrites. > > > > I believe it is 1GB -- not sure where you found the other thing. > > > >> What should sensible values be for VolWrites and VolMounts be for LTO-2 > >> tapes? > > > > Don't know... you'd have to check your media for information on that, or > > perhaps someplace online that has recommendations for this. These values > > are fairly easily changed. I, for example, changed that query to exclude > > disk volumes, as it's pointless to be checking for volumes that do not > > wear out. > > Difficult... depending on the customers needs, I have used values for > VolMounts between 10 and 2000 :-) > VolWrites is more or less easily calculated: Say, we increment VolWrites > once per GB. LTO tapes might have a typical compressed capacity of 280 > GB. That makes 280 VolWrites for a full tape, 20 full writes seeam > reasonable for the customers needs, so I'd use 5600 as the limit here.
16: List Volumes likely to need replacement from age or errors Choose a query (1-16): 16 +-----------------+--------+--------+------------+--------+ | Volume | Mounts | Errors | Writes | Status | +-----------------+--------+--------+------------+--------+ | Weekly02-Vol003 | 22 | 0 | 30,412,916 | Full | | Weekly02-Vol002 | 23 | 0 | 28,649,104 | Used | | Weekly02-Vol004 | 24 | 0 | 28,657,428 | Used | +-----------------+--------+--------+------------+--------+ * Something doesn't look right here. It looks like I have on average 1.38 MILLION writes per mount. The Weekly02 tapes are used once a week, on Sunday for Weekly differential backups and on the first Sunday of the month for a Full backup. What is causing the disparity between the number of mounts and volume writes? I am really asking where should I look to see what is causing the huge number of VolWrites? I have checked my config files and I don't set maximum file size anywhere. > > >> How can I check to see what the default value is for VolWrites? > > > > What do you mean? The default "too many" value? All of this is in > > query.sql which is somewhere in the Bacula tree (should be pretty easy > > to dig up). I was asking where to find the default value for Maximum File Size, which I found in src/stored/stored_conf.c. maximumfilesize is set to 1000000000 which appears to be exactly what the manual states. Thank you, Tom. ---- Thomas Boyda Consultant, Proxicom, Inc. 276-739-2314 (Desk) ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
