LINUX & UNIX

Basic details about sun solaris(Partitions & File system)

Partitions:

In SUN SOLARIS there are total 8 partitions. Maximum 7 partitions can be created and one partition is reserved. The partitions are named from 0-7. The default layout of sun solaris are as follows:

0-> /
1-> swap
2-> Entire Disk Information stored
3->
4->
5->
6->
7-> /export/home

Note: In Windows & Linux maximum 65 partitions can be created.


Filesystem: The default filesystem for sun solaris is UFS(Unix File System). For storage management, the default file system for sunsolaris is ZFS(Zeta File System)

Note: In  Linux, the default  file system for storage management is GFS(Global File System)

Difference between NFS version 3 NFS version 4

NFS version3:

* Version 3 is stateful  i.e; In this version NFS service must be restarted

* Daemons: There are total 5 daemons in NFS version 3

NFS version 4:

* Version 4 is stateless i.e; In this version there is no need to restart the service

* Daemons: There are total 6 daemons in NFS version 4

Difference between Hard Link & Soft Link

Hard link:

* Hard link is created on same hard disk

* Inode number always remains same in the hard link

* Original file is not shown in hard link

*Size  is same as original file


Soft link:

* Softlink can be created on same disk as well as on secondary disk

* In softlink, inode number changes

* It shows the link of original file

* It shows in bytes similar to file character