System variables - HW resources - SB question

System variables - HW resources - SB question

Hello support team.
I try to add System variables from HW Resources group and meet strange thing.
No matter if I choose, for example,
Free memory[KB]
or
Free memory[KB] - SB,
in variables property on the System driver variable tab I see Type = Free memory[KB] in both cases.
This is true for all xxx <> xxx - SB system variables pairs.
In same time Type combobox has -SB values, but even if i select -SB type manually after I go out from this variable and then return again Type field restores non-SB selection.
When I try to see values of this variables values are different on main server, but on standby they has same values.
1. It is correct that -SB variables has non-SB type?
2. Why values of -SB and non-SB on main and standby servers are different?
Checked on 6.51B14 and 7.10B7700 versions.

This is a migrated post! Originally posted on 30.01.2014 by user stolyarov_as. Please be aware that information can be outdated.