Multi-Client Performance - CIFS

We put the Synology RS10613xs+ through some IOMeter tests with a CIFS share being accessed from up to 25 VMs simultaneously. The following four graphs show the total available bandwidth and the average response time while being subject to different types of workloads through IOMeter. IOMeter also reports various other metrics of interest such as maximum response time, read and write IOPS, separate read and write bandwidth figures etc. 

We put the NAS through this evaluation in two modes. In one, we just teamed up two 1Gb ports and used the others as redundant links (with the 10G ports disconnected). In the second mode, we teamed everything together to provide a link theoretically capable of providing up to 24 Gbps. The graphs below present the results.

Synology RS10613xs+ Multi-Client CIFS Performance - 100% Sequential Reads

Synology RS10613xs+ Multi-Client CIFS Performance - Max Throughput - 50% Reads

Synology RS10613xs+ Multi-Client CIFS Performance - Random 8K - 70% Reads

Synology RS10613xs+ Multi-Client CIFS Performance - Real Life - 65% Reads

Readers interested in the actual values can refer to our evaluation metrics table available here (with teaming of two of the 1 Gbps ports together and the others were left unconnected), here (with teaming of two of the 10 Gbps ports together and the others left unconnected) and here (with a 24 Gbps uplink - teaming all available network ports together).

The graphs for the QNAP TS-EC1279U-RP as well as the Synology DS1812+ are also presented as reference, but do remember that the QNAP unit had twelve drives in RAID-5 compared to ten here. The DS1812+ was also evaluated with hard drives in RAID-5 in its eight bays. In addition, none of the other units were equipped with 10 Gb links. With speeds reaching up to 800 MBps in RAID-5 for certain access patters,  the RS10613xs+ is, by far, the fastest NAS we have evaluated in our labs as yet. Synology claims speeds of up to 2000 MBps, and this is definitely possible in other RAID configurations with specific access patterns.

Single Client Performance - CIFS and NFS on Linux Miscellaneous Factors and Final Words
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  • JayJ - Friday, December 27, 2013 - link

    In at least 2 of the links it is stated that when a RAID 5 rebuild is in process and a URE is encountered, all data is lost.

    I'm not sure what crap hardware that author has been using. When a URE is encountered during a rebuild the rebuild halts and you're back where you started - with a degraded array.

    Now I'm not saying "RAID 5 is the BEST!" but the "facts" presented are false.

    FYI I've rebuilt several hundred RAID 5 arrays over the last 15 years and have experienced a URE during rebuild exactly 2 times. You can cut down on UREs by performing a scheduled "Patrol Read" or functional equivalent. There is no way to know if the data is readable unless you read it. You can have a (fictional) "SUPER DUPER RAID 3000" with a ridiculous amount of redundancy but it's still theoretically possible to lose your data due to URE unless it's read and verified.
  • Computer Bottleneck - Saturday, December 28, 2013 - link

    How do you feel about drives like the Western Digital Re which has a URE spec of 10^15 compared to other drives with a URE spec of 10^14 in RAID 5?
  • 802.11at - Friday, December 27, 2013 - link

    Given the choice, I'll take RAID 10 all day in my enterprise environment.
  • 802.11at - Friday, December 27, 2013 - link

    But FWIW, our HP LeftHand SAN is comprised of 6 nodes with 8 HDDs each in RAID 5 with the volumes actually running on a networked RAID 10.
  • theangryintern - Monday, December 30, 2013 - link

    Nice try, guy who writes for smbitjournal
  • Brutalizer - Wednesday, January 1, 2014 - link

    The second link is quite wrong in the premises. It says that filesystems are really reliable today, well, they are not. There are lot of research showing how all filesystems are flawed today (except ZFS) with respect to data corruption protection. Only ZFS protects the data against data corruption. Read the research papers you will find here:
    http://en.wikipedia.org/wiki/ZFS#Data_integrity
    http://en.wikipedia.org/wiki/Hard_disk_error_rates...
  • tomdb - Thursday, December 26, 2013 - link

    How much are consumer grade (if any exist) 10 GbE NAS's, switches and PCIe cards?
  • bobbozzo - Thursday, December 26, 2013 - link

    $3000 for a 6-bay Netgear w 10gigE
    http://www.anandtech.com/show/7523/netgear-launche...
  • bobbozzo - Thursday, December 26, 2013 - link

    I don't think there are any 'consumer' 10gb switches yet.
  • Master_shake_ - Saturday, December 28, 2013 - link

    infiniband is getting cheaper in price

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