Arduino Dust Sensor (0)


    May 16th, 2015 | Tags: , , , , , | Posted in Guides, Life, Tech

    Put together a dust sensor using Arduino Mega 2560, Shinyei PPD42NS dust sensor and LCD shield.

    Put together a dust sensor using Arduino Mega 2560, Shinyei PPD42NS dust sensor and LCD shield.

    Put together a Arduino-based dust sensor over the weekend using the following components:

    The codes and wiring instructions for Arduino Mega 2560 and Shinyei PPD42NS is as follow. However, I did include Serial output so you can view the sampling results using Arduino IDE’s Serial Monitor (9600 bauds).

     

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    Docker – A highly Portable and Lightweight software container (0)


    May 9th, 2015 | Tags: , , , , | Posted in Tech

    Docker, a lightweight Software Container Virtualization

    Docker, a lightweight Software Container Virtualization

    Coming from a background that dabbles with application, desktop and server virtualization technologies (e.g. Citrix XenApp/ XenDesktop, XenServer, VMware ESXi), the Docker technology seems new and yet familiar at the same time.

    Docker is somewhat similar to Java Virtual Machine (JVM) whereby it supports application stack portability across platforms (Linux, Mac, Windows, etc.). The difference is that you are not restricted a particular programming language (like Java in the case of JVM).

    You can basically package (any) applications or platforms (e.g. WordPress, Node.js, Git Server) or disk images (e.g OSes like Ubuntu, Centos, Fedora) and run it on the Docker Engine. Best of all, Docker Engine runs on Linux, Mac, Windows, Amazon EC2, Google Cloud Platform, Microsoft Azure, Synology, and the list goes on and on. Basically, you get Application Stack Portability.

     

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    Synology DiskStation DS1515+ Review – A look at DSM 5.2 (0)


    May 4th, 2015 | Tags: , , , , , , | Posted in Guides, Reviews, Tech

    An overview of containers running on Docker Engine.

    An overview of containers running on Docker Engine.

     

    I bit the bullet and upgraded to DiskStation Manager 5.2 (DSM 5.2) beta for Docker. Docker aside, Synology also introduced the following in this new release:

    Additional features in DSM 5.2
    Docker Lightweight software containerization solution that allows you to create, deploy and run applications on Synology NAS.
    Single Sign-on Register multiple DSM and access them using one set of credentials.
    Note Station Your own cloud note taking solution now features Synology Web Clipper that captures any webpage directly in a Chrome window.
    Cloud Station & Cloud Sync Cloud Station supports smart polling and customizable file versioning for each shared folder.
    Cloud Sync now offers one-way synchronization.
    Backup & Replication The file browser feature allows you to locate and selectively restore specific files. Not only that, new rotation setting makes backup versioning more space efficient.
    DS Photo+ It now supports casting to big screens through Chromecast and DLNA-compatible devices.
    File Station It can now browse and download remote data stored in different storage solutions (FTP server, public cloud, etc.).
    Link Aggregation It now supports Active-standby, 802.11ad dynamic, Balanced XOR, and Adaptive Load Balancing.
    SSD Cache The memory usage has been optimized. It now requires lesser amount for RAM for higher capacity SSD

     

    Among the list of new features, I feel particularly excited about Docker and the new Link Aggregation modes. Let me cover more on Docker as it is an exciting new technology.

     

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    Synology DiskStation DS1515+ Review – Adding new Hard Drive to Expand Storage Capacity (0)


    May 3rd, 2015 | Tags: , , , , , | Posted in Guides, Reviews, Tech

    The volume expansion process completed after almost 2 days. Storage capacity grew from 8.05TB to 10.73TB.

    The volume expansion process completed after almost 2 days. Storage capacity grew from 8.05TB to 10.73TB.

     

    There is an empty drive bay in my Synology DS1515+ and there are three choices:

    1. Leave it empty
    2. Populate it with an identical hard drive as hot spare
    3. Populate it with an identical hard drive and expand the storage capacity

    No prize for guessing which one I chose as it is pretty obvious.

     

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    Synology DiskStation DS1515+ Review – Migration between DiskStations (DSM 5.2) (1)


    April 30th, 2015 | Tags: , , , , , , | Posted in Guides, Reviews, Tech

    Extracted the hard disks from the DS412+ and installed in the same disk order.

    Extracted the hard disks from the DS412+ and installed in the same disk order.

     

     

    Recently, I upgraded to a new Synology DiskStation DS1515+ (from DS412+). Instead of getting brand new hard disks, I decided to reuse the existing four hard disks. The perfect S.M.A.R.T test results for the existing three year old Western Digital Red 3TB NAS drives cemented my decision to migrate them over to the new NAS. In this post, I will be documenting my experience of migrating hard disk from one Synology NAS to another.  I hope this will help you in your current/ future migration.

    Considering that I have important data on the existing Synology DS412+, I decided that I should do up a proper migration plan:

    1. Upgrading to the same version of Synology DiskStation Manager (DSM)
    2. Backing up the data on Synology DS412+
    3. Verifying the backed up data
    4. Migrating the hard disks from Synology DS412+ to DS1515+
    5. Setting up the Synology DS1515+ with migration option
    6. Verifying the migrated hard disks and data
    7. Upgrading the apps and rebuilding media indexes

     

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    Synology DiskStation DS1515+ Review – Introduction (1)


    April 29th, 2015 | Tags: , , , , , , | Posted in Reviews, Tech

    Synology DS1515+ 5-bay powerhouse NAS to meet your most-demanding needs.

    Synology DS1515+ 5-bay powerhouse NAS to meet your most-demanding needs.

    Review At A Glance
    Product Synology DiskStation DS1515+ [product link]
    Summary An ultra-performance NAS designed with reliability and versatility in mind to meet the demanding needs of SMB, photo enthusiast or someone (e.g. me) who values immortalised (digital) medias of his family.
    Pros + Quad-core Atom 2.4GHz processor
    + Hardware AES-NI accelerated data encryption
    + Easily scalable to 15 disks with 2 Synology DX513 units
    + Upgradable to 6GB RAM
    Cons – Cannot really seem to find one. Price? Actually I do find the price reasonable for such performance. But again, who doesn't mind cheaper products?
    + Doesn't run virtual machines directly on NAS like QNAP's Virtualisation Station.
    SRP S$1153.00 (at time of post)

     

    The Synology DiskStation DS1515+ was released back in November 2014 to meet the demanding needs of small and medium-sized businesses. It is a powerhouse 5-bay NAS that is designed to be reliable, powerful and versatile.

    In today’s digital age, memories are often captured in digital forms. Hence, it is worthwhile to invest in a reliable storage solution. My choice is the Synology DiskStation DS1515+ to safe keep my family’s pictures and videos. At the same time, the DS1515+ is versatile enough to meet my multimedia needs – streaming videos and music to my Chromecast and iTunes and yet sufficiently powerful enough to address my tinkering needs by running application platforms on Docker.

     

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