guitar chord
G♭sus2
The third replaced by the second. Nothing in it decides between major and minor.
Written the other way round it is F♯sus2 — the same twelve keys on a piano, a different piece of notation.
Every fingering that fits a hand
xx4122
hard
xx4124
hard
2441xx
hard
x9bb99
moderate · barre
xx4674
moderate · barre
What is true of it
G♭sus2 is G♭, A♭ and D♭ — 1, 2 and 5 counted from G♭.
These are also the notes of D♭sus4/G♭ and C♯sus4/G♭. Which name is right depends on what is underneath and what came before — the notes alone do not decide.
The easiest of the 5 fingerings below is xx4122: 4 fingers, held at the 1st fret.
None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.
2 of the 5 need a barre.
2 strings stay silent.
Where its notes are on the neck
The brass dots are G♭, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
G♭sus2/A♭
444674
G♭sus2/D♭
99bb99
An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.