Tuesday, July 23, 2013

Virtual and traditional storage environments

SSD will continue to coexist with HDD, either as separate or converged HHDDs. Where, where and how they are used will also continue to evolve. High IO (IOPS) or low latency activity will continue to move to some form of nand flash SSD (PCM around the corner), while storage capacity including some of which has been on tape stays on disk. Instead of more HDD capacity in a server, it moves to a SAN or NAS or to a cloud or service provider. This includes for backup/restore, BC, DR, archive and online reference or what some call active archives.

The generic idea with SMR is to increase areal density (how many bits can be safely stored per square inch) of data placed on spinning disk platter media. In the above image on the left is a representative example of how traditional magnetic disk media lays down tracks next to each other. With traditional magnetic recording approaches, the tracks are placed as close together as possible for the write heads to safely write data.

With new recording formats such as SMR along with improvements to read/write heads, the tracks can be more closely grouped together in an overlapping way. This overlapping way (used in a generic sense) is like how the shingles on a roof overlap, hence Shingled Magnetic Recording. Other magnetic recording or storage enhancements in the works include Heat Assisted Magnetic Recording (HAMR) and Helium filed drives. Thus, there is still plenty of bits and bytes room for growth in HDDs well into the next decade to co-exist and complement SSDs.

Another evolving storage feature that ties into HDDs is Data Integrity Feature (DIF) that has a couple of different types. Depending on which type of DIF (0, 1,This vertical Cable Organizer can be mounted to either. 2, and 3) is used; there can be added data integrity checks from the application to the storage medium or drive beyond normal functionality. Here is something to keep in mind, as there are different types or levels of DIF, when somebody says they support or need DIF, ask them which type or level as well as why.

Are you familiar with Advanced Format (AF)? If not you should be. Traditionally outside of special formats for some operating systems or controllers, that standard open system data storage block, page or sector has been 512 bytes. This has served well in the past however; with the advent of TByte and larger sized drives, a new mechanism is needed. The need is to support both larger average data allocation sizes from operating systems and storage systems, as well as to cut the overhead of managing all the small sectors. Operating systems and file systems have added new partitioning features such as GUID Partition Table (GPT) to support 1TB and larger SSD, HDD and storage system LUNs.

These enhancements are enabling larger devices to be used in place of traditional Master Boot Record (MBR) or other operating system partition and allocation schemes. The next step however is to teach the operating systems, file systems and hypervisors along with their associated tools or drives how to work with 4,096 byte or 4 Kbyte sectors. The advantage will be to cut the overhead of tracking all of those smaller sectors or file system extents and clusters. Today many HDDs support AF however by default may have 512-byte emulation mode enabled due to lack of operating system or other support.

Intelligent Power Management (IPM) is a collection of techniques that can be applied to vary the amount of energy consumed by a drive, controller or processor to do its work. These include in the case of a HDD slowing the spin rate of platters, however keep in mind that mass in motion tends to stay in motion. This means that HDDs once up and spinning do not need as much relative power as they function like a flywheel. Where their power draw comes in is during reading and write, in part to the movement of read/write heads, however also for running the processors and electronics that control the device. Another big power consumer is when drives spin up, thus if they can be kept moving, however at a lower rate, along with disabling energy used by read/write heads and their electronics, you can see a drop in power consumption. Btw, a current generation 3.5 4TB 6Gbs SATA HDD consumes about 6-7 watts of power while in active use, or less when in idle mode. Likewise a current generation high performance 2.5 1.2TB HDD consumes about 4.8 watts of energy, a far cry from the 12-16 plus watts of energy some use as HDD fud.

WatchApps are applications that can be synced with specific shows and are overlaid on top of the broadcasted stream as per the viewer's request. The Apps are available on Android or iOS-based tablets and smartphones, as well as on the TV screen (by using Comigo's STB middleware). They enable viewers to watch TV shows and interact with the viewed content and their friends, all at the same time.

Comigo's WatchApps platform transforms every show into an exciting experience and opens up new revenue generating opportunities for operators. Comigo has already been approached with numerous ideas for WatchApps, and believes firmly that a wider community of developers should develop future apps. As a result they provide a Software Development Kit (SDK) and Application Programming interfaces (APIs) that allow anyone to develop WatchApps. In addition to the SDK, Comigo provides operators with an advanced management system that allows them to review and assign WatchApps to specific programs,Winbo photo frames TV channels or timeslots.I was looking for an option to Customizable Ear Caps to wear with my half.

The WatchApps can be played on the TV set itself, so users do not have to move their eyes off the main screen. Additionally, they can operate the WatchApps on a tablet or smartphone that has been synced with the TV set, so as not to disturb the viewing of others that are watching with them.

WatchApps also opens many opportunities for a shared experience with friends. For example, if the user decides to buy merchandise, the platform enables them to invite his or her friends to buy the same product. This type of group buying can even lead to a lower price. The user can also choose to send a virtual champagne glass to friends, and can see Facebook or Twitter messages that relate to the show that the user is watching.

"Market reaction to our WatchApps platform has been fantastic," commented Dov Moran, founder and CEO of Comigo. "Not only does it enhance the viewer's overall experience, but it enables the operator to increase viewer engagement and monetize beyond the content. Using the WatchApps platform the operator can deliver services, information and capabilities which are relevant to the show".

The platform already includes a wide range of contextual applications such as: delivering real-time information on sporting events, displaying player stats, ordering related merchandise, linking to a show's Facebook page, Twitter feed and more. In addition, there are more general WatchApps such as news, weather, stock price tickers, and even a pizza-ordering App.
Read the full products at http://www.winbogifts.com/products/usb-flash-drive.html.

No comments:

Post a Comment