Data Areas • Track Zero This section describes the data areas used by the IBCDASDI Virtual Disk Initialization
Program. The data areas are:• Unit Control Block
TRACKZERO >
HARO Rl R2 R3 R4 1< > L--V V V V V V Home Track IPt Record 1Pt Standard Additional
Address Description or Dummy BootstrapVolume Volume Label
Label(Optional) Figure 1-3. IBCDASDI Track Zero
12IBM VM/370 Service Routines Program Logic
>
<Rl0 > V J
Additional
Vclume Label(Cptional)
Program. The data areas are:
TRACK
HA
Address Description or Dummy Bootstrap
Label
12
>
<
Additional
Vclume Label