Hello,
What is the difference between slice and partition on Solaris world?

Regards

On a Sparc, a disk is divided into slices and the term "partition" is not used. On a PC, a disk is cut into "partitions" so this is the fundamental division of a disk. You often have multiple OS's on a PC with each getting its own partition. Solaris will take its partition and again divide it into slices. On either a Sparc or a PC, a slice is what gets mounted. (This assumes no volume manager is in use.)

In normal parlance there isn't one, and in Solaris the devisions of a disk are called slices.

The real difference is more subtle. A slice is what in the windows world would be called a "primary partition", ie it is a physically bounded area of disk. A partition is actually a logically, not physically, bounded area of disk which resides within a slice again you don't normally see any difference in Solaris, but in the windows world the "secondary partitions" all reside within one slice on disk.

Hello,
I've a Solaris10 which is installed on 1 disk drive and can understand the structure. c0d0s0 / c0d0s7 terminology.

I've an assumption for a different structure...
Let's suppose that I've 10 disks and grouped as RAID5.

Additionally I want to add 4 more disks as RAID5 to store my new Oracle database and some other files. I mean that I want to divide my new RAID5 logical drive to 2 slices.

How does Solaris name to my disks and logical structure?

Thanks

If you were using a logical volume manager it would depend on which logical manager you were using. If the RAID was done in hardware it would be presented as another disk.

For example if you created a SVM volume you would have 4 disks visible in /dev/dsk from which you would create a riad5 metadevice (md), lest say it is called md100 you would then treat /dev/md/(r)dsk/md100 as a disk in the same way as a /dev/(r)dsk/cXtY device.

In veritas you would have disks, you would add these to a diskgroup and create volumes. The devices you would mount would be located in /dev/vx/dsk/<diskgroup name>/<volume name>

If the RAID5 is done in hardware you would just see an extra disk in /dev/dsk.