On Wed, Nov 28, 2018 at 11:17 AM Austin S. Hemmelgarn <[email protected]> wrote:
> Based on your configuration, your tapes are configured to store just > short of 800GB of data. > > The relevant lines then are these two: > > flush-threshold-scheduled 50 > flush-threshold-dumped 50 > > I misunderstood the man pages there and for some reason thought that volume referred to the holding disk. Probably because I was reading way too fast.... > In your case, I'd suggest figuring out the average amount of data you > dump each run, and then configuring things to start flushing when about > half that much data has been dumped. That will still have the taping > run in parallel with the dumping, but will give you enough of a buffer > that the taper should never have to wait for dumps to finish. > So over the last 13 runs, the: -- smallest volume size has been 152G (19% tape capacity) -- average volume size has been 254G (32% tape capacity) -- largest volume size has been 612G (76% tape capacity) So do the following values look "reasonable" based on those numbers: flush-threshold-scheduled 25 flush-threshold-dumped 0 That should target the larger sizes which are the ones which tend to lap into the next business day. Kind regards, Chris
