I am having a bit of split in thought.
I am looking at getting a NAS for my company, we need it for our VMware server.
Originally the idea was to buy a NAS (a Netgear ReadyNAS)
But then I got some recommendations from the community (ServerFault) to build a NAS from a server and use something like NextentaStor, Openfiler or FreeNAS.
I have eliminated Openfiler for several reasons and I am now left between Nexentastor and FreeNAS.
The problem I am having is whether FreeNAS can be counted on for a production environment.
Is FreeNAS good enough to be an iSCSI back end to VMware? The last time I used FreeNAS it was version 0.7.
We would be using Nexentastor community not the paid version.
Any insight would be great.
We were recently in the same situation, and no, unfortunately FreeNAS is not ready for the enterprise. With 8.0.1, we had tons of issues with Active Directory integration working intermittently, as well as periodic lockups. All you need to look at are the change logs for recent beta releases to see that there are still major bugs being addressed in the 8.0 series.
Unfortunately, you get what you pay for when it comes to storage. We were just going to use FreeNAS as a backup target, but it wasn't stable enough for that task, much less stable enough as primary VMware storage.
I would concur. FreeNAS has greatly evolved since version 7 but the current version 8.0.1 doesn't support automatic failover to a spare drive (FreeBSD ZFS bug) and still has a number of major bugs.
FreeNAS as a backup target is debatable, but as a production iSCSI target for your VMs it isn't production ready in my opinion.
Nexenta - if you can pay for it - is the better option. Nexentastor isn't bad, but you might have to check the licensing terms if commercial production use is allowed. They also changed the terms to be 18TB of RAW disk rather than USED space.
"Enterprise" means different things to different people. I would feel comfortable using FreeNAS in a small office networking environment, particularly as a non mission critical machine such as a secondary backup target. Many folks here seem to consider it reliable.
However I think the final nail in the coffin for using it as serious "enterprise-grade" storage presentation is simply that FreeNAS just isn't designed to do that. The bulk of FreeNAS' target market is on SuperUser.
This is from an interview with the FreeNAS project manager Josh Paetzel:
@Soliginis: I have read of several instances where hardware raid (raid specific) data was present on drives while zRAID was setup. Such setup is not recommended since it will cause a lot of grief with zRAID especially since you will be having two RAID systems compete for the disks. As @StrangeWill: stated above will also limit the functionality of your zRAID thus causing possible data integrity issues.