The Cuddletech Veritas Volume Manager Series: Volume Kreation: VxAssist & Ways to spend more time cuddling
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2. Volume Lessons Background

Let's take a quick look at the equipment we'll be using for our examples below. I'm using a Sun Ultra1 200E with 128M of memeory. For our test disks we'll be using a Sun A5100 Fibre Channel disk array with 14 9G disks. This will provide enough disks to build some much larger structures than we did in the vxMake course using only 4 disks. We'll be using the UFS file system, VERITAS Volume Manger version 3.0.3 on Solaris8. Here a quick peek at our disks and system for your reference: 
# uname -a
SunOS gaff 5.8 Generic_108528-15 sun4u sparc SUNW,Ultra-1
# format
Searching for disks...done


AVAILABLE DISK SELECTIONS:
       0. c0t0d0 <SUN4.2G cyl 3880 alt 2 hd 16 sec 135>
          /sbus@1f,0/SUNW,fas@e,8800000/sd@0,0
       1. c0t1d0 <SUN4.2G cyl 3880 alt 2 hd 16 sec 135>
          /sbus@1f,0/SUNW,fas@e,8800000/sd@1,0
       2. c1t0d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w2200002037096efd,0
       3. c1t1d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020372d0f69,0
       4. c1t2d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370971e8,0
       5. c1t3d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w2200002037097752,0
       6. c1t4d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370970f3,0
       7. c1t5d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370d44c8,0
       8. c1t6d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370d3926,0
       9. c1t16d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370e0b08,0
      10. c1t17d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370e85f8,0
      11. c1t18d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370d3bef,0
      12. c1t19d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370d44ee,0
      13. c1t20d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w220000203714322b,0
      14. c1t21d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370971df,0
      15. c1t22d0 <SUN9.0G cyl 4924 alt 2 hd 27 sec 133>
          /sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w22000020370d44d2,0
Specify disk (enter its number): ^D
#
You'll notice that SCSI controller 0 (c0) is the onboard SCSI controller for our internal 4.2G disks and SCSI controller 1 (c1) is our disks in the A5100. The split in the number of targets (c1t6 then we skip to c1t16) is due to the way A5100's dish out SCSI target numbers. Let's take another look at how we can add these disks into Volume Manager (VM) control, but using a diffrent method than we used in the VxMake course.
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Introduction   The Pregame Show: Disk Groups and vxdiskadd