Sun Solaris (OS) Question: Download Questions PDF
What is the big difference between /dev/dsk and /dev/rdsk
Answer:
In Solaris whenever you create a new slice using format command a raw physical slice or a Raw Device will be created which is addressed as /dev/rdsk/c#d#s# where # is the number for slice.
After formatting it with newfs command the slice will be addressed as /dev/dsk/c#d#s# which can now be used for mounting.
eg. newfs /dev/rdsk/c0d0s4
mkdir /oracle
mount /dev/dsk/c0d0s4 /oracle
After mounting /dev/dsk/c#d#s# is called as Block Device
/dev actually contains logical device names which are links (Shortcuts in windows terminology) to actual physical devices in /devices directory.
After formatting it with newfs command the slice will be addressed as /dev/dsk/c#d#s# which can now be used for mounting.
eg. newfs /dev/rdsk/c0d0s4
mkdir /oracle
mount /dev/dsk/c0d0s4 /oracle
After mounting /dev/dsk/c#d#s# is called as Block Device
/dev actually contains logical device names which are links (Shortcuts in windows terminology) to actual physical devices in /devices directory.
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