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2 months ago | 
techtarget.com | Paul Kirvan |Stacey Peterson |Kim Hefner
By Paul Kirvan Stacey Peterson, Senior Managing Editor Kim Hefner, Managing Editor Personal cloud storage (PCS) is a local network-attached storage (NAS) device that lets users store data, photos, music, videos and other files, and is optimized for media streaming.
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Jul 25, 2024 | 
techtarget.com | Rahul Awati |Kim Hefner
Bit rot is the slow deterioration in the performance and integrity of data stored on storage media. It is also known by the names bit decay, data rot, data decay and silent corruption. When bit rot occurs, it causes the corruption of data, which can adversely affect its accessibility or usefulness. Impact of bit rotBit rot is typically a slow process that happens over several years. It can happen with almost any form of storage media, including the following:Hard disk drives (HDDs).
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Jun 20, 2024 | 
techtarget.com | Paul Kirvan |Rodney Brown |Kim Hefner
What is SATA Express? SATA Express (Serial Advanced Technology Attachment Express or SATAe) is a bus interface that connects storage devices to a computer motherboard, supporting the Serial ATA and Peripheral Component Interconnect Express protocols concurrently. It was first defined in a section of the SATA v3.2 specification released in 2013. The host connector supports up to two SATA ports or two PCI Express (PCIe) lanes.
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Jun 18, 2024 | 
techtarget.com | Stephen J. Bigelow |Stacey Peterson |Kim Hefner
ByStephen J. Bigelow,Senior Technology EditorStacey Peterson,Senior Managing EditorKim Hefner,Managing Editor What is a bad block? A bad block is an area of storage media that is no longer reliable for storing and retrieving data because it has been physically damaged or corrupted. Bad blocks are also referred to as bad sectors. There are two types of bad blocks: A physical, or hard, bad block comes from damage to the storage medium.
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May 30, 2024 | 
techtarget.com | Paul Kirvan |Stacey Peterson |Kim Hefner
ByPaul KirvanStacey Peterson,Senior Managing EditorKim Hefner,Managing Editor What is Advanced Host Controller Interface? Advanced Host Controller Interface, or AHCI, is a technical standard for an interface that enables software to communicate with Serial ATA (SATA) devices. These peripheral component interconnect (PCI)-class devices move data between system memory and SATA storage media. AHCI also supports redundant array of independent devices (RAID).
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May 28, 2024 | 
techtarget.com | Robert Sheldon |Brien Posey |Kim Hefner
What is a bare-metal hypervisor (Type 1 hypervisor)? A bare-metal hypervisor, also known as a Type 1 hypervisor, is virtualization software that has been installed directly onto the computing hardware. This type of hypervisor controls not only the hardware but also one or more guest operating systems (guest OSes). In comparison, a hosted hypervisor, or Type 2 hypervisor, runs on the host OS. The hypervisor communicates with the host OS, which communicates with the underlying hardware.
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Apr 22, 2024 | 
techtarget.com | Stephen J. Bigelow |Kim Hefner
ByStephen J. Bigelow,Senior Technology EditorKim Hefner,Managing Editor What is data destruction? Data destruction is the process of destroying data stored on tapes, hard disks and other forms of electronic media so that it's completely unreadable and can't be accessed or used for unauthorized purposes. When data is deleted, it's no longer readily accessible by the operating system, the application that created it or any other software tool capable of accessing data storage media.
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Mar 27, 2024 | 
techtarget.com | Paul Kirvan |Kim Hefner
What is RAID 3 (redundant array of independent disks 3)? RAID 3 (redundant array of independent disks 3) is a RAID configuration that uses a parity disk to store the information generated by a RAID controller and uses striping for storing the data. Because the parity information is on a separate disk, RAID 3 does not perform well when tasked with numerous small data requests.
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Mar 19, 2024 | 
techtarget.com | Paul Kirvan |Kim Hefner
What is RAID 50 (RAID 5+0)? RAID 50, also known as RAID 5+0, combines distributed parity (RAID 5) with striping (RAID 0). It requires a minimum of six drives. This RAID level offers better write performance, increased data protection and faster rebuilds than RAID 5. Performance does not degrade as much as in a RAID 5 array because a single failure only affects one array. Up to four drive failures can be overcome as long as each failed drive occurs in a different RAID 5 array.
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Oct 2, 2023 | 
techtarget.com | Rich Castagna |Kim Hefner
Software RAID controllers A RAID controller may also be software-only, using the hardware resources of the host system, particularly the host's central processing unit and dynamic RAM. Software-based RAID generally provides similar functionality to hardware-based RAID, but its performance is typically less than that of the hardware versions. The main advantages of using a software RAID controller are flexibility and low cost because special hardware isn't required.
