Is Solaris from Oracle free?

I have had recommendations to use solaris as an inexpensive NAS solution. Does Oracle have a free version. From what I see it costs thousands of dollars. is there a link to a free version?

What are thelimits of this version if there is a free version.

I'm trying to create a NAS to store files using ZFS file system but for business use not HOME otherwise i would try FREENAS. I need something more reliable and secure.
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sorry, it doesn't seem that this OS  has any free versions suitable for You but You can find plenty at:

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Randy DownsOWNERCommented:
It looks like it's open source

Oracle Technology Network Developer License Terms
Oracle Solaris, Oracle Solaris Cluster and Oracle Solaris Express


Open Source Software
"Open Source" software - software available without charge for use, modification and distribution - is often licensed under terms that require the user to make the user's modifications to the Open Source software or any software that the user 'combines' with the Open Source software freely available in source code form. If you use Open Source software in conjunction with the Programs (or if you plan on licensing your own application under an Open Source license), you must ensure that your use does not: (i) create, or purport to create, obligations with respect to the Oracle Programs; or (ii) grant, or purport to grant, to any third party any rights to or immunities under our intellectual property or proprietary rights in the Oracle Programs.
For more on projects forked from OpenSolaris (after Oracle killed it)
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