Non-Disruptive Upgrade why is disruptive upgrade MDS9124 o my god!

Last DAY i have needed upgrade my MDS9124 from 5.0.4(d) to 5.2.8(e).

When i started the upgrade i recaived this message:


disruptive upgrade



O my god!!!! is not possible.


I found the solution... i have resolved with reload the switch (this is siwtch is up from 5 years and the memory is 90% busy).

After reload the upgrade is Non-disruptive