Hi Jon, > > 1. you are writing to a dds2 tape, 3.8GB max size, and /dev/sdc2 is more > than 4 GB, even compressed.
it's a dds4 tape, you know, 20Gb and 40Gb compressed. My backups aren't greater than 6Gb totally ( when full dump ). these indications aren't normal , the tape must to have more than 3.8 Gb > > 2. you have no holding disk available for /dev/sdc2 so it is writing > directly to tape. for some reason this is too slow and some timeout > is kicking in. I add below notifications from my Debian ( log check). You can see many strange errors, specially "Jun 24 03:06:06 xaloc kernel: st0: Error on write filemark." repeatedly. I don't understand what happens ... > > 3. you have holding disk space available but have not set a chunk size > below the maximum file size limit of your holding disk. --- LOG CHECK --- Unusual System Events =-=-=-=-=-=-=-=-=-=-= Jun 24 03:06:06 xaloc kernel: st0: Error with sense data: Current st09:00: sense key Medium Error Jun 24 03:06:06 xaloc kernel: Additional sense indicates Excessive write errors Jun 24 03:06:06 xaloc kernel: st0: Error with sense data: Current st09:00: sense key Medium Error Jun 24 03:06:06 xaloc kernel: Additional sense indicates Excessive write errors Jun 24 03:06:06 xaloc kernel: st0: Error on write filemark. Jun 24 03:06:06 xaloc kernel: st0: Error with sense data: Current st09:00: sense key Medium Error Jun 24 03:06:06 xaloc kernel: Additional sense indicates Excessive write errors Jun 24 03:06:06 xaloc kernel: st0: Error with sense data: Current st09:00: sense key Medium Error Jun 24 03:06:06 xaloc kernel: Additional sense indicates Excessive write errors Jun 24 03:06:06 xaloc sendbackup[20682]: index tee cannot write [Broken pipe] Jun 24 03:06:06 xaloc kernel: st0: Error with sense data: Current st09:00: sense key Medium Error Jun 24 03:06:06 xaloc kernel: Additional sense indicates Excessive write errors Jun 24 03:06:06 xaloc kernel: st0: Error with sense data: Current st09:00: sense key Medium Error Jun 24 03:06:06 xaloc kernel: Additional sense indicates Excessive write errors Jun 24 03:06:06 xaloc kernel: st0: Error on write filemark.
