2009

Striping

The main performance-limiting issues with disk storage relate to the slow mechanical components that are used for positioning and transferring…

Duplexing is an extension of mirroring

Duplexing is an extension of mirroring that is based on the same principle as that technique. Like in mirroring, all…

Mirroring is one of the two data redundancy techniques used in RAID

Mirroring is one of the two data redundancy techniques used in RAID (the other being parity). In a RAID system…

Physical and Logical Arrays and Drives

The fundamental structure of RAID is the array. An array is a collection of drives that is configured, formatted and…

Toshiba mSATA SSDs

The SATA-IO working group has recently announced a new standard called mini-SATA or mSATA in an effort to standardize the…

Samsung 64GB mini-SATA solid state drive

Samsung told Computerworld US at the Storage Networking World show that its new SSD conforms to the new mini-SATA (mSATA)…

Three-phase voltage, frequency and number of wires

Three-phase electricity is rarely used for domestic purposes, the table below is only relevant to electricians, electrical engineers and other…

Look-up table for worldwide single-phase voltage, frequency and plug/sockets

Look-up table (single-phase voltage, frequency and plug/sockets) There are 214 countries listed below. 175 of the countries mentioned use 220-240…

TYPE M plugs used almost exclusively in South Africa, Swaziland and Lesotho

TYPE M plugs used almost exclusively in South Africa, Swaziland and Lesotho This plug resembles the Indian type D plug,…

Virtual Machine Disk vs. Virtual Hard Drive

Traditional non-virtualized servers and desktops will load and execute hundreds, even thousands, of individual files such as operating-system kernel files,…