Pros: Just a few comments to RAID configuration. I have this system in the mail and will load with four 3TB enterprise drives. Research indicates that RAID 5 should ONLY be used if storage space is your absolute highest performance. Read/Write suffers due to the parity overhead. The gurus I read it from say RAID 10 is the only way to go if performance and fault tolerance overshadow space.
Cons: I've only read about firmware issues with MAC's AFP. I will test and review as I have a mixed network.
Summary: The 4.0.5 (current) firmware has a bug where files being copied to the server via AFP (at least from 10.9) or even just accessed (probably due to metadata update) will get silently corrupted occasionally--somewhere between 0.1% and 1% of the time. There is no indication this has happened--the file is just toast when you go to open it later. If I hadn't done a diff after copying 100K files, I never would have known some of them were corrupt.
Pros: Populated with 4x Seagate NAS 4TB drives in a RAID5 configuration, it's relatively fast (able to more or less saturate a gigabit link for large-file transfers--up in the ~80MB/s range). The 4.x firmware has a GREAT web interface--it looks and functions like a windowed desktop, and is almost shockingly fast taking that into account. Relatively easy to configure. A decent selection of add-on services like Transmission (BitTorrent), Plex, media servers, and a variety of ...
Cons: SEVERE known but undocumented firmware bugs with AFP. I got it to use as a fileserver for my Macs, Time Machine server for my Mac backups, and iTunes media server to host my iTunes library, all of which I had previously been doing with a Mac Mini, and due mostly to firmware bugs it currently fails somewhat or completely at all of those tasks.
Summary: It was fairly easy to set up. Upgraded from a Netgear ReadyNAS NV+. Few things aren't working properly. I have attached an HP printer (HP 1200) to it and no problem printing from a PC but doesn't work properly with Mac. Also time machine works on the first backup but fails to recognize disk on the second and further backups.
Pros: Fast NAS. I have it in a RAID 5 setup. Extensive feature set.
Cons: Issues with Time Machine backup for Mac OS. Currently its broken but hopefully a firmware fix will resolve it.
Summary: Would have been nice to have 4 ports for ethernet because I saturate the 2 with 5 people and 20 connected devices. It's not noticeable unless we all are doing large file transfers at the same time.
Pros: First and foremost, I will say that if you want a great NAS, this is it. For home, I couldn't be happier except for one or two things. I bought this on Black Friday from a competitor for $150 off what Newegg offered (wasn't on sale), but it's the same price now more or less everywhere. I would have preferred NE if I had the choice.
Cons: My only complaint is not so much the NAS's fault. You simply can't transcode 1080P or 720P video in Plex. It just won't happen. The CPU maxes out on ffmpeg process. I also can't figure out how to kill a process other than to SSH or full restart. They need to add that option or make it more apparent. The CPU is not enough for transcode. I am using redundant Plex servers through the house instead on traditional desktop hardware.
Summary: Have had this for about a week now. It was a very simple set up; basically a plug and play. RAID 0 on 4x3TB WD REDs was created in a matter of a few minutes. Copying files were a bit slow over the network with an average of about 35MB/s (I was only using 1 ethernet port). Have to look more into the configuration of the dual ethernet ports and see how to best manage transfer of large volumes of data.
Pros: - easy to set up, - tons of options including dlna server, iSCSI, access rights management (including LDAP or AD authentication), other standard NAS stuff such as NFS, FTP, SSH
Pros: I bought this device to run an internal VMWare VSphere environment and to handle some misc storage needs. This thing has so many bells and whistles it's unreal. It has a bunch of apps that can be used to eliminate deploying multiple machines to handle small tasks. Some examples are a built in SMTP server, SFTP server, Web Server, Open SSL VPN server, remote file manager, and more. Some of these features aren't full products but they get the job done
Cons: One annoying thing I found is that the NAS comes with two NICs and they can be trunked and teamed for HA/Performance but can only contain 1 IP address per interface. You cannot subinterface and create multiple IP addresses if you want the device directly accessible.