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Time Growth Simulation breaks yearly rentention in BCJ #7

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marcohorstmann opened this Issue Jun 27, 2018 · 3 comments

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@marcohorstmann

marcohorstmann commented Jun 27, 2018

Hi Timo,

it seems that when you activate the Time Growth Simulation in Backup Copy Job Style
the yearly retention doesn't work anymore. Needs to be fixed.

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tdewin Jun 27, 2018

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Could it be that you made a simulation for 1 year? Making a time simulation runs the simulation for today + x year you entered. if you have a high normal retention policy, you might not run into yearlies in that time frame

e.g
http://rps.dewin.me/?m=3&s=1000&r=14&c=50&d=10&i=D&dgr=10&dgy=1&dg=1&gaf=0&g=6,12,8,3&e

vs
http://rps.dewin.me/?m=3&s=1000&r=14&c=50&d=10&i=D&dgr=10&dgy=3&dg=1&gaf=0&g=6,12,8,3&e

Owner

tdewin commented Jun 27, 2018

Could it be that you made a simulation for 1 year? Making a time simulation runs the simulation for today + x year you entered. if you have a high normal retention policy, you might not run into yearlies in that time frame

e.g
http://rps.dewin.me/?m=3&s=1000&r=14&c=50&d=10&i=D&dgr=10&dgy=1&dg=1&gaf=0&g=6,12,8,3&e

vs
http://rps.dewin.me/?m=3&s=1000&r=14&c=50&d=10&i=D&dgr=10&dgy=3&dg=1&gaf=0&g=6,12,8,3&e

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marcohorstmann Jun 30, 2018

Sorry for the delay. Yes this is correct. 3 years of retention but only 1 year growth simulation.
Problem is when someone using this for sizing and without noticing the 2nd and 3rd year of retention is not calculated in the space requirement he can run out of space. In my opinion it needs to be changed that even the growth simulation is only for a year calculation is needed for e.g. 3 years. Other option could be to override the no. of years in growth simulation and calculate it for the whole yearly retention points.

marcohorstmann commented Jun 30, 2018

Sorry for the delay. Yes this is correct. 3 years of retention but only 1 year growth simulation.
Problem is when someone using this for sizing and without noticing the 2nd and 3rd year of retention is not calculated in the space requirement he can run out of space. In my opinion it needs to be changed that even the growth simulation is only for a year calculation is needed for e.g. 3 years. Other option could be to override the no. of years in growth simulation and calculate it for the whole yearly retention points.

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tdewin Jul 4, 2018

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At best I could make a warning message. But RPS simulates the time frame. If you simulate 1 year, you will get the result after one year :)

But yeah I could make a minimal time jump warning (e.g you have select 18 months of backup, consider 2 year simulation or something like that)

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tdewin commented Jul 4, 2018

At best I could make a warning message. But RPS simulates the time frame. If you simulate 1 year, you will get the result after one year :)

But yeah I could make a minimal time jump warning (e.g you have select 18 months of backup, consider 2 year simulation or something like that)

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