So, on a weekend like mine, you'd have (at a minimum) two tapes. One
would be the full system save before the PTF's and one just a SAVSYS after
Now, multiply that by 10 lpars and that's 10 extra tapes tied up. We do
this four times a year and retain them for a full year so that's 40 tapes
tied up in extra SAVSYS. Plus the extra IPL (or two). Granted, it
doesn't take an IPL to come out of restricted state - a STRSBS of your
controlling system would do it.