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Mirroring (RAID 1) was well established in the 1970s including, for example, Tandem NonStop Systems.Īlthough not yet using that terminology, the technologies of the five levels of RAID named in the June 1988 paper were used in various products prior to the paper's publication, including the following: Although failures would rise in proportion to the number of drives, by configuring for redundancy, the reliability of an array could far exceed that of any large single drive. In their June 1988 paper 'A Case for Redundant Arrays of Inexpensive Disks (RAID)', presented at the SIGMOD Conference, they argued that the top-performing mainframe disk drives of the time could be beaten on performance by an array of the inexpensive drives that had been developed for the growing personal computer market. Gibson, and Randy Katz at the University of California, Berkeley in 1987. The term 'RAID' was invented by David Patterson, Garth A. RAID levels greater than RAID 0 provide protection against unrecoverable sector read errors, as well as against failures of whole physical drives. Each scheme, or RAID level, provides a different balance among the key goals: reliability, availability, performance, and capacity.

The different schemes, or data distribution layouts, are named by the word 'RAID' followed by a number, for example RAID 0 or RAID 1. ĭata is distributed across the drives in one of several ways, referred to as RAID levels, depending on the required level of redundancy and performance. This is in contrast to the previous concept of highly reliable mainframe disk drives referred to as 'single large expensive disk' (SLED). RAID ( / r eɪ d/ ' redundant array of inexpensive disks' or ' redundant array of independent disks' ) is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both. For other uses, see Raid (disambiguation).

For the police unit, see RAID (French Police unit). The goods generally reach all addresses by 10:30am, noon, or the end of day.This article is about the data storage technology. FedEx and UPS provide fastest delivery to all 50 states.Customers requiring urgent deliveries on these days can make a phone call and our staff would help fulfill their request.No normal delivery services from FedEx and UPS on holidays/weekends.Good news is that there is no extra charges for Saturday deliveries.

Reaches anywhere in contiguous states within 2-4 business days.

Economical choice for small quantities of light-weight items, especially the backup tapes.

Ground Shipments generally take 2 to 5 business days to deliver.

UPS or FEDEX ground is a low-cost, fast and reliable option for all routine shipments in the contiguous states.

The total cost can be viewed before placing the order, and it depends on.

The company has the right to ship the order through any other carrier service that we think will be a better choice.

Our efficient staff will do its best to fulfill your specific demands. Please make sure that you mention it in the section of “special instruction”.

You can also request a specific carrier.

Customers can also provide us theirFedEx/UPS account for “ Freight Collect”.

However, there are rare chances that you may receive multiple packages as they would be delivered from different locations.

We ensure that all customer orders are safely delivered within the shortest time frame.

Products would be shipped from your nearest warehouse. In addition, we have 6 other regional warehouses located across the contiguous states.

Most of the products are shipped from our San Ramon, CA warehouse.

Orders placed on national holiday/weekend will be shipped on the following business day.

Not every product can be shipped on the same day, as they might require special packaging.

For priority mail, orders must be placed by 2:00pm PST.

Our dedicated staff ships most orders the same day, unless the order is placed after 4 pm PST OR it is out–of-stock.

Applicable to ground shipping within Continental U.S.

SOFTRAID 7 FREE

We offer Free Ground Shipping to the 48 continental US States on orders over $500.We ship internationally to wherever UPS, FEDEX and DHL delivers.We ship to APO/FPO Military addresses also.

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