XRAID-2 vs SFH-2 any real difference in space/performance & dual NAS Backup question

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kevinfor2014 wrote:

I wanted to know is there any real difference between Netgear XRAID2 (RAID6)  and Synology SFH2 (RAID6) \

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I don't know much about Synology, but I am not seeing SFH2 on their web site.  Did you mean SHR-2? If so, it looks pretty similar, and likely both use mdadm underneath.  

Overall, you'd lose the option of using ReadyDR to back up your NAS if you go with Synology.  So you wouldn't be able to back up snapshots, and backing up iSCSI Luns would be much less efficient.

The ReadyNAS hardware warranty isn't transferable, so it doesn't cover used equipment.  Also, Netgear doesn't support used NAS (and wouldn't support an OS-6 conversion either).  So you'd lose support if you go with a used product.  The RN3220 is an OS-6 NAS, so no conversion would be needed. The older RN3200 is OS-4.2.x.  If you go with that, make sure you get a v2, as the v1 has a 2 TB drive limit in slots 5-12.