Looping Thunderbolt versus endpointĪs you may recall from some of my prior Thunderbolt articles and reviews, some Thunderbolt devices are endpoint, meaning they can’t be looped (daisy chained) with other Thunderbolt devices. Ahead in this article, I’ll be testing the actual speeds and actual performance with my own equipment. Not only is this more than enough for multiple layers of realtime uncompressed 1080p, mathematically it is also enough for multiple layers of true 4K (4096 x 2160) using ProRes 422 HQ. The capital B indicates that these are megabytes per second, not megabits per second. OWC states that the ThunderBay IV 4-bay 12TB Thunderbolt system offers sustained reading speeds of 894MB/s (using software RAID) and writing speeds of 863MB/s. There are electronics in the enclosure that convert the SATA ports on the removable drives to Thunderbolt on the back. There is a locking faceplate to keep the drives secure. ![]() OWC says that the enclosure protects the four internal drives while keeping them cool thanks to its “superior heat dissipation”. The ThunderBay IV has an aluminum enclosure. Which drives is OWC bundling with this unit? They are Toshiba DT01ACA300 7200 rpm 3.5 inch hard disk drives, with a SATA interface. Since the ThunderBay IV 4-bay 12TB Thunderbolt system comes with four drives, a very quick mental calculation indicates that each drive must be 3TB each, and that’s how the total capacity (when unformatted) is 12TB. modification of some iMacs to offer eSATA before Apple added Thunderbolt) here in ProVideo Coalition magazine and once interviewed the CEO in one of my podcasts. The company has been providing quality hardware products and support to the computer industry since 1988, and I have covered some of its products and services (i.e. Ahead I review the various available configuration options (JBOD, RAID 0, RAID 0+1, RAID 4, RAID 5) and compare their performance versus redundancy, logistical benefits of each one, and more.įor those unfamiliar, OWC is the short name for Other World Computing, sometimes referred to via its URL (). OWC offers other configurations too, with smaller or larger capacity, and now even some with Thunderbolt 2. The phrase ‘Jack of all trades, master of none’, has a valid meaning when dealing with a dual purposed RAID handler.Back in June, I published my first look article on the ThunderBay IV 4-bay 12TB Thunderbolt system with the palindromic price -in this configuration- of US$979, which has since been lowered to US$959. It is always better to have one tool for one job. It is clear that software RAIDs offer a unique set of problems to safeguarding ones data. In addition, ‘rollback’ technology, or ‘uninstall’ functions can remove vital data necessary for proper functioning of a software RAID. New software installations wreak havoc on an operating system’s set of RAID drivers and causes irreversible data loss. ![]() All operating system updates are not necessarily in tune with the current RAID drivers and can cause an incompatibility with the current RAID handler, causing data loss to occur, and then a need for RAID data recovery would arise. This can in effect render a RAID useless and corrupt data being written to the RAID, or data currently being stored on the RAID. A software RAID by virtue of the fact that it is under control of the operating system is susceptible to all things that can cause problems for the operating system.Īs an example, all viruses, malware, and outside invaders which take control of the operating system now have access to the low level RAID handlers of the operating system. What this basically means is, anything wrong that can happen to the operating system now has an avenue for affecting the RAID. In other words, along with all the responsibilities of the operating system it also handles the configuration, integrity and data disposition of the RAID. ![]() A software RAID allows the operating system to negotiate any and all transactions between the configured RAID and the drives in the RAID. In essence a software RAID does not use separate hardware, separate firmware or even a separate handler. One such ‘technological advance’ is the ‘software RAID’. However, there are those who try and circumvent the obvious by introducing methodology that, although less expensive, leaves great chasms between prudent data safety and outright irresponsible data loss. With that being said, it is clear that a dedicated hardware setup must be used in order to help ensure the integrity of the RAID as well as safeguarding a client’s data. This technology has catapulted the information technology storage capabilities to include the bleeding edge cloud offsite data housing. ![]() RAID technology in and of itself is an extremely complicated set of programming algorithms that allow for multiple drives to be presented as one entity.
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