Confused c#t#d#s#

UNIX Solaris
1

I am confused c#t#d#s# once I learn the following :
slice 0 ...... 0 to 2520
slice 1....... 2521 to 2840
slice 6........2841 to 8891
slice 2........0 to 8891
really really confused. Please explain.

2

That is the cylinder count for each slice. Slice 2 is a special device the system uses to reference the whole drive at once thus it shows up using the entire range of cylinders.

3

Still not clear about cylinder and the following :
c#t#d#s#

4

c = controller id
t = target id
d = lun id
s = slice

5

Hi,

c0 = controler number

t0 = SCSI Target Number

D0 = Disk Number

S0 = Slice or Partition Number.

Hope you understand now.

Thanks & Regards

Vijay..:b:

6

eg:
c0t0d0s0 will be the first disk
c0t1d0s0 will be the second disk

7

1) vijay told D0 (D zero) is disk number.
2) incredible told : c0t0d0s0 will be the first disk
c0t1d0s0 will be the second.
Then how come in 1) dis number and in 2) t1 second ????
Please clarify

8

1) If there is one dis how to make partition?
2) if there is two disk how to make partition?
3) How effects as per the below details in single disk and two disk?

  /           /dev/dsk/c0t0d0s0   256MB
swap        /dev/dsk/c0t0d0s1   1050MB
disk        /dev/dsk/c0t0d0s2   \(entire disk\)
unassigned  /dev/dsk/c0t0d0s3   10MB
/usr        /dev/dsk/c0t0d0s4   2500MB
/var        /dev/dsk/c0t0d0s5   2500MB
/opt        /dev/dsk/c0t0d0s6   \(optional, maybe 500MB\)
/data       /dev/dsk/c0t0d0s7   \(rest of disk\)
9

pls search the forum bro... partitioning info is asked about much in this forum. check it out first.
And also see my sample (output truncated)

# format
Searching for disks...done

c2t20d0: configured with capacity of 0.94MB
c2t20d247: configured with capacity of 0.94MB
c3t21d0: configured with capacity of 0.94MB
c3t21d250: configured with capacity of 0.94MB
emcpower27a: configured with capacity of 0.94MB
emcpower28a: configured with capacity of 0.94MB


AVAILABLE DISK SELECTIONS:
       0. c1t0d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
          /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w21000000878d69d6,0
       1. c1t1d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
          /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w21000000878d0bfc,0
       2. c2t20d0 <EMC-SYMMETRIX-5771 cyl 1 alt 2 hd 15 sec 128>
          /pci@8,700000/lpfc@3/sd@14,0
       3. c2t20d54 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,36
       4. c2t20d55 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,37
       5. c2t20d56 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,38
       6. c2t20d57 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,39
       7. c2t20d58 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,3a
       8. c2t20d59 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,3b
       9. c2t20d60 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,3c
      10. c2t20d61 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,3d
      11. c2t20d62 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,3e
      12. c2t20d63 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,3f
      13. c2t20d64 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,40
      14. c2t20d65 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,41
      15. c2t20d66 <EMC-SYMMETRIX-5771 cyl 37178 alt 2 hd 30 sec 64>
          /pci@8,700000/lpfc@3/sd@14,42

The above bolded are the 2 internal disks of the system. 1st and 2nd disk... In our case, these OS disks are mirrored to each other..
The rest below them are SAN storage disks