Likelihood to Recommend
FreeNAS is well suited for most storage serving scenarios, whether it be for an office file server, backup destinations, data replication across the internet, or as backend storage for virtual machines. It can serve various types of clients via a plethora of standard protocols and can easily integrate with existing infrastructure using LDAP authentication and so on. It's pretty simple to use (it helps to have at least a basic understanding of the underlying technologies) and almost maintenance-free. One scenario that springs to mind that it may not be appropriate for (yet) is as S3 storage. However, S3 functionality was added in a recent release and may have improved greatly since then. I'm sure it will eventually work very well for this.
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RHEV is well suited for organizations that need a cost-effective and flexible solution for their environment. As its vendor-independent software, easily install on any type of hardware. RHEV provides a GUI interface to manage the software, which makes the management of the software easier for the end-user. RHEV is best for non-production or less critical applications. RHEV can be easily integrated with other REDHAT software.
Read full review Pros The FreeNAS web interface is modern looking. It makes tasks like provisioning drives into raid volumes easy. The ZFS raid option allows you to add in an SSD as a cache drive to increase performance. Read full review RHV issues/bugs can be reported via Bugzilla to RH support. The service is great and typically responds soon. Red Hat distribution integration is seamless as it is integrated into the kernel. OpenStack support enables more customized VM templates and network configuration control. Read full review Cons Not good for beginners as it requires deep understanding of networking and storage. Most of the good and required features are not available in free version. Read full review 1- RHVM API is pretty slow, especially after creating a VM it is not possible to retrieve the VM details (i.e VM's MAC Address) fast enough, where we need to place a pause in our Ansible Playbook, make the automation process slow. 2- RHV is still using collected to monitor the hypervisors which is deviating from Red Hat policy for other RHEL based applications to use PCP to monitor, which is richer in features. 3- It will be great if it is possible to patch the hypervisors using other tools such as satellite and not only via RHVM. 4- In the past Red Hat used to present patches in the z release (i.e. 4.3.z), and features in the y release (i.e 4. y), but starting from 4.4 that is mixed together wherein the Z release you get both patches and features, that is not good because that requires a lot of time to test when we patch as it includes features as well. 5- Engineering team has to be more reactive when new feature is requested. Read full review Support Rating
There were some things that can be found by other users on forums and Google and some things that were not.
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FreeNAS effectively uses all resources really well and it is highly recommended for in premises NAS. It has unlimited ROI as it is really free and open-source. The only payment we need to pay is when we need any support from those guys. FreeNAS helps us to effectively do our work with the legacy systems as it manages all the components really well. FreeNAS although rebranded to TrueNAS will still be there until our legacy systems run.
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RHEV is an excellent product, includes more features, is less expensive, and has rock solid reliability and is backed with the best Red Hat Support in the industry. RHEV uses KVM under the hood which is used by all the big players in the industry (AWS, Rackspace, etc) to lower their overall costs and improve efficiency and profits and that's why RHEV is an excellent solution!
Read full review Return on Investment Low-Cost Network Attached Storage Provides additional network storage to support client & business operations FreeNAS secures our data using custom encryption keys Read full review RHEV has provided a positive ROI as our customers are not experiencing as many outages during maintenances. We have not experienced any catastrophic failures as a result of vsphere losing connection to the ntp. There has been a level of stability in our environment that was not previously experienced with our previous vendor. Read full review ScreenShots