- Brand Name: QNAP
- Model Number: TS-879U-RP-US
- Manufacturer Warranty Description: 2 years
- Hard Disk Description: None
- Item Display Weight: 45.00 pounds
QNAP TS-879U-RP 8-Bay NAS, 2U, SATA III. USB 3.0
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- NAS, iSCSI, IP-SAN storage solution
- Scale up Storage Over 400TB Raw Capacities
- VMware, Citrix and Hyper-V ready
- High performance, secure, reliable, and simple
- 10 GbE ready reaching over 1,000 MB/s and 100,000 IOPS
- SSD cache acceleration
- Multi-core processor, DDR3, SATA 6Gb/s, and USB 3.0
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Top Customer Reviews
The first crash was an iSCSI firmware/driver issue. I had about 10TB of data on it, and it was unrecoverable. QNAP support's suggestion was to restore it to factory default and restore my data from a backup - which is a little bit inconvenient in the middle of a workday.
The second crash was an NFS process that died, and for some reason the QNAP was unable to recover it. It would constantly try however, and the loop of start/stop on the process essentially locked out any GUI changes I could make to the unit. I couldn't kill the process from the console, couldn't shut it down gracefully - nothing would work at all. QNAP support's suggestion? Restore it to factory default and restore my data from a backup... I had to hard power cycle the unit each time it would go down, and it would only remain up for 2-3 hours before the same cycle happened again. After too many cycles, the RAID was (as you might expect) too corrupted to continue.
The third crash happened during a firmware update. Knowing that these are "delicate" to say the least, I shut down all of my ESXi hosts talking to it and made sure that there was almost no I/O at all going on to the unit. I went through the web UI for the firmware update, it indicated that the process completed, and then just sat there. No reboot, no prompts, nothing. I consoled into it, and could see that the commands were queued but in a wait state because of (once again, and this time a totally different unit) the NFS process being locked up in a loop.Read more ›
I bought the 10GbE adapter with it but for the first year I didn't have anything that supported 10GbE to connect it to. I finally got a server with a 10GbE adapter and just hooked it up today and although it shows a connection at 10Gbps the performance is not much difference than over GbE which is disappointing. I had expected I would be able to see throughput of at least 200MBps with 8 SATA drives in RAID5 but the most I ever see is about 110MBps.
Don't get me wrong, for the price it's a good unit and it works well, but the performance leaves a bit to be desired.
I am writing to update this review in May 2013. The issues are not solved. In addition, what I had believed to be a VMWARE VMOTION issue, VMWARE has been able to reproduce and has communicated the problem is with QNAP firmware issue that isn't solved.
QNAP is just an extremely poor choice for supporting VMWARE.
More about the lacking redundancy features ...
On the failure of a single drive in a 8 drive RAID 6 configuration, all the virtual machines on the two connected Dell servers failed. During the failure the console did not operate correctly, for example would not perform a soft reset, requiring us ultimately to have to pull the power cords to reset. We also found an anomaly between the logs and the console display. We faced anomalies during the drive rebuild process as well.
Contacting QNAP for support has yielded no progress on these issues. All we have from 2 weeks of seeking assistance, is affirmation that we needed to replace a failed drive. Pao from customer support refuses to respond to our complaint that QNAP doesn't continue to operate on a failed drive, a basic feature. We also could not get a response to why the rebuild process of a drive was starting back at 0% a couple of times during the rebuild process on a new drive.
I escalated the problem to customer support, and have no response in a full week.
See the ridiculous email thread below. Wei is our director of IT, Pao is the support employee of QNAP.Read more ›
The quality of the unit seems to be good. Setup took about an hour and was easy. It automatically updated firmware the first time I booted it. I have the entire space setup as a single volume and have a single LUN presented via iSCSI to Windows 2008 R2. The biggest thing I was concerned with was throughput. Due to my server (HP blade), I have to connect through a switch and can't connect directly via a crossover cable, but I seem to be getting great throughput. At least it seems like I am maxing out the bandwidth through the switch as I am getting about 100-110MBps which is what I would expect on a 1Gbps link.
I purchased the 10Gbps addon module for the NAS so I'm ready if I upgrade switching to 10Gbps, but in my application (backup) I'm not moving that much data so it's kind of a non-issue for me.
Overall, the setup was really easy, it does what I wanted it to and the price is right so I would recommend it to anyone looking for low cost tier 2 storage. If I was looking for tier 1 storage for a production vmware environment or similar I would probably do additional stress testing before recommending it, but for tier 2 it's exactly what I wanted.
Most Recent Customer Reviews
Big, Powerful, and a little loud when loaded with 8 4Tb drives. I maxed mine out with 32gb of ram (4x8g). Works great. Read morePublished 11 months ago by Amazon Customer
This NAS is very productive and reliable! But it seems like some functions which were available on other models like Download Station are not supported on this device. Read morePublished on July 29, 2013 by Vagan Martirosyan
I recently replaced my current failing nas with this QNAP and so far I am very pleased! The web interface is fast and aside from some minor networking issues it has been very... Read morePublished on May 1, 2013 by Dude
This is a great NAS if you don't have the budget for a true enterprise model. I wish it had more gigabit NIC ports but it does support some 10 GB cards which is great.Published on January 4, 2013 by VA Beach