On Fri, Oct 08, 2010 at 11:06:40AM -0500, Dustin J. Mitchell wrote: > On Fri, Oct 8, 2010 at 10:24 AM, Brian Cuttler <[email protected]> wrote: > > Feature request (?) - There are checks for DLE > tape, seems almost > > ? ? ? ? ? ? ? ? ? ? ?silly but a check for > > ? ? ? ? ? ? ? ? ? ? ? ? SUM(DLEs) > (tape_capacity * runtapes) > > One DLE with a full size larger than available tape is always a > problem: there's no way to set up a dump run that will get that DLE on > tape. So we warn about it.
> However, it's not a bug for the sum of the full size of each DLE to be > greater than tape length, because the planner can conceivably > rearrange fulls and partials to fit everything on tape anyway. When > the planner *fails* to pull this off, it will warn. No, not a bug, I was thinking 'feature' size of DLE-s as calculated this run exceeds total tape capacity. I am not at all surprised that forcing all DLE to level 0 exceeded capacity - I just didn't think. Totally on me. Rather, what I meant was that the Typically sum(DLE_calulated_today) is a fraction of total DLE usage, there are days though, as you begin to run out of capacity, when the mix of full and non-full dumps exceeds tape size, no - not size, capacity, and you can sort of know that pretty early in the run. get estimates = sum them, check that sum against tape capacity which is (tape_size * runtapes). I realize that there IS NO Solution within amanda. This is a capacity planning issue for the humans to solve, but amanda can warn via the amdump report, that problems are imminent and that human capacity planning is required. > Dustin > > -- > Open Source Storage Engineer > http://www.zmanda.com --- Brian R Cuttler [email protected] Computer Systems Support (v) 518 486-1697 Wadsworth Center (f) 518 473-6384 NYS Department of Health Help Desk 518 473-0773 IMPORTANT NOTICE: This e-mail and any attachments may contain confidential or sensitive information which is, or may be, legally privileged or otherwise protected by law from further disclosure. It is intended only for the addressee. If you received this in error or from someone who was not authorized to send it to you, please do not distribute, copy or use it or any attachments. Please notify the sender immediately by reply e-mail and delete this from your system. Thank you for your cooperation.
