Cd Storage Jukebox

[Jessica Wilson]

Anoptical jukebox is a robotic data storage device that can automatically load and unload optical discs, such as Compact Disc, DVD, Ultra Density Optical or Blu-ray and can provide terabytes (TB) or petabytes (PB) of tertiary storage. The devices are often called optical disk libraries, "optical storage archives", robotic drives, or autochangers. Jukebox devices may have up to 2,000 slots for disks, and usually have a picking device that traverses the slots and drives. Zerras Inc. provides a removeable capsule that holds up to 200 discs per library which can be scaled-out to manage 1600 discs per 42U rack unit.[1] The arrangement of the slots and picking devices affects performance and maintenance costs, depending on the robotics design, the space between a disk and the picking device. Seek times and transfer rates vary depending upon the optical technology used.

One of the first examples of an optical jukebox was the unit designed and built at the Royal Aerospace Establishment at Farnborough, England. The unit had twin read/write heads, 12" WORM disks and the carousels were pneumatically driven. It was produced to replace the 1/2 inch magnetic tape devices that were being used to store satellite data.

Jukeboxes are used in high-capacity archive storage environments such data centers and on-premise server rooms to store long-term data such as imaging, medical, compliance records, video and other high-value data assets, objects, and files. Hierarchical storage management is a strategy that moves little-used or unused files from fast magnetic storage to optical jukebox devices in a process called migration. If the files are needed, they are migrated back to magnetic disk. Optical disc libraries are also useful for making backups and in disaster recovery situations. Today one of the most important uses for jukeboxes is to archive data. Archiving data is different from backups in that the data is stored on media designed to last up to 100 years. The data is usually permanently written on Write Once Read Many (WORM)-type discs[2] so it cannot be erased or changed.[3]

Jukeboxes typically contain internal SCSI- or SATA-based recordable drives (CD-ROM, CD-R, DVD-ROM, DVD-R, DVD-RAM, UDO or Blu-ray) that connect directly to a file server and are managed by a third-party jukebox management software. This software controls the movement of media within the jukebox, and the pre-mastering of data prior to the recording process.

Before the advent of the modern SAN and much cheaper hard disks, high-volume storage on DVD was more cost-effective than magnetic media. Jukebox capacities have greatly increased with the release of the 128 gigabyte (GB) quad layer Blu-ray (BD) format,[4] with a road-map to increase to eight layers and 200 GB per disc. The current format, used in the DISC ArXtor7000 library, allows 89 TB of storage from a single 700-disc jukebox. Optical disc libraries like the TeraStack Solution can store up to 142 TB of online and nearline data with a nominal power draw of 425 watts.[5] These two units show the wide variance of product attributes. The optical storage archive library from Zerras allows up to 25TB of removeable optical storage in a single unit library with a power draw of 60 watts per unit and scale to 200TB in a 42U rack cluster. The Zerras Icebox differs from Sony Optical Data Archive libraries is it uses approved standard dual, tri, and quad layer blu-ray discs rather than proprietary Archival Disc standard format which is not backward compatible to standard blu-ray drives and discs in the market.[6]

All optical libraries comply with the standard SCSI command set. These commands are used for control and library geometry querying. When the management software is run, it will send inquiry requests to the optical library for the status of its contents. Number and type of drives, number and status of slots and other essential information is gathered. Following this, the management software may request data off of a particular piece of media or it may wish to perform some write operations on it. Any of these actions would require specific move commands sent from the management application to the optical library. An example of this would be to move a media from slot 50 to the drive number 3.

Optical library management software handles all of the writing and reading of the filesystem content on the optical media. Once a media has been placed in a drive from its home slot, many operations can be taken. For example: The creation of a UDF filesystem on a blank media, the writing of a single file, or the reading of some data off of the filesystem on the media.Filesystem types available for optical media range from ISO standard technologies like UDF to proprietary formats.

Optical library management software will often track the files and folders extant on a piece of optical media[7] by means of a database. Any filesystem data pertaining to an individual media would be available in this database. For example: paths and names of files and folders, file sizes, and all of the metadata that a modern filesystem may keep.

Optical library management software makes itself available to the OS in an assortment of ways. One of these ways in a Windows environment, is by way of virtual drive letters.[8] Essentially, the whole of an optical library can be viewed, read to and written to via a virtual filesystem while the management software handles all of the media movement and I/O requests invisibly in the background.

Kintronics has a wide selection of optical BluRay jukeboxes and libraries available, as well as all the software or network attached storage manager necessary to attach them to your computer and network. They range in size from 35 to over 600 discs capacity. The Blu-ray Jukeboxes also support DVD media. If you need to just archive to disc and have infrequent access, take a look at our Archiving Appliance. BluRay archiving systems provide the latest technology for assuring your data is there when you need it.

The software performs policy-based file tiering and archiving from primary storage systems to any compatible hosted cloud storage service and keeps all data transparently accessible from links created at the original location.

The latest discs are called blu-ray type discs because they use the blue laser to read and write the data. Today the discs can hold up 100G Bytes and next year are expected to double to 200 GB. Here is a summary of the libraries available.

Description: This complete family of optical jukebox libraries provides a range of flexible libraries with 45 to 690 Blu-ray discs. Total capacity varies depending on the number of drives required.

Note the term jukebox and library are sometimes used interchangeably. We usually use the term jukebox when we are talking about devices that handle DVD and CD discs. The term Library is usually used when the device handles optical media such as UDO or Blu-ray optical media. Today the most popular media uses the Blu-ray technology.

A jukebox or optical library is excellent for archiving data to optical discs. Optical media has evolved over the years. Optical media includes DVD, UDO, MO and Bluray discs. Today Blu-ray is the most popular optical disc media because it is also used in consumer video. If you have a library with any of the older media, contact us for help in migrating to the latest media. The current Blu-ray discs hold up to 100GB/disc, and the new 200GB discs are becoming available.

Jukeboxes connect to a Windows, UNIX or Linux server using special software. Users on the network can copy or drag and drop data to the server which automatically transfers the data to an optical disc in the jukebox.

All the jukeboxes work best when only a few users need to access the discs at the same time. Small jukeboxes have only one or two optical drives, so only one or two users can share the jukebox at the same time. If additional users want to use a new disc, they have to wait for the disc to be swapped by the robotics in the jukebox. This takes from 4 to 9 seconds. Larger jukeboxes have six or more readers, so more users can simultaneously access the different discs at the same time.

Point Software connects many different jukebox systems to Windows servers. Optical recording is integrated to fulfill all archiving, mastering and duplication requirements. The automated recording feature simplifies the overall recording process dramatically. Due to its multi-threaded implementation PoINT Jukebox Manager allows multiple users to access the jukebox simultaneously and to record different data streams to different media in parallel. Disc caching to hard disk improves performance dramatically.

How Blu-ray optical discs work

You may know about Blu-ray discs which are used for holding high quality movies, but do you know how they are used by computers for holding lots of data.

Our blog describes how the technology works, includes educational notes, describes how to do your own calculations, and how to select the right equipment. We also included examples about how the technology is used.

Kintronics provides everything you need to create a complete surveillance and security system. We are an engineering and consultation company that sells complete IP security solutions at the very best prices.

I have found a way round this issue. Firstly as you have Google Play Music I presume you also have Google Drive ( free online storage). In this drive create a folder called music, then in this folder create a folder for each artist, say Adele. then in this folder upload mp3 songs of hers you own. You cannot just upload the album it must just be the mp3s.

Personal Jukebox no longer plays mp3 files from Google Drive. However it does play mp3 files from Dropbox. So create a free Dropbox account, create a folder called Music and in that create a folder for each artist. As Personal Jukebox shuffles files what I do is merge my music files from a single album to create one mp3 file. I use a free tool called mp3merge, ( ), very easy and quick to use. Then when enabling skill Personal Jukebox in Alexa direct it to Dropbox.

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