What are the /dev/dsk/ disk naming conventions for x86 disks?
• p0 whole physical disk • p1 – p4 Four primary fdisk partitions • p5 – p30 26 logical drives in extended DOS partition (not implemented by Solaris) • s0 – s15 16 slices in the Solaris FDISK partition (SPARC has only 8) On Solaris, by convention, s2 is the whole Solaris partition. For the first part of the name, e.g. c0t0d2: • “c” is the disk controller number as seen by the operating system • “t” is the target number on the controller. That is, SCSI ID for SCSI. Omitted for ATAPI. controllers • “d” is the disk on that target. That is, LUN for SCSI, Master (d0) or Slave (d1) for ATAPI. The precise naming for IDE disks and ATAPI cdroms has varied through Solaris x86 releases, and is different on SPARC. On x86, the ‘t’ part is often missing for IDE disks as IDE doesn’t support multiple targets (the Master is the single target and it drives the Slave too, so these look more like SCSI LUNs). However, the IDE ATAPI interface looks more like SCSI, so you can find the Master disk has an IDE t
