![]() ![]() ![]() ![]() 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 was 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 drives I will be using are 10TB HGST He10.This article is about the data storage technology. On the plus side ARECA appears to be very heavy enterprise level equipment and is well respected.Īt Lloyd Chambers recommendation I am now also looking at the OWC ThunderBay 6, Also a six bay box which uses SoftRaid as a RAID controller and can set it up for RAID 6. This being a hardware RAID I have been advised that all of the drives have to match. I have also looked at the Areca 8050U3-6, a 6 bay Thunderbolt 3 box which is a hardware RAID solution. So far I have been considering a Drobo 5D3 (I know the horror stories some people have had with Drobo's "bricking", but I haven't had any of those problems and am currently using a 5 year old 5D and I am not getting the speed I'd like even though i have 128gb MSATA in the cache bay and 7200rpm drives.) I like that like the 5D I can set up the 5D3 with dual drive redundancy (Drobo's version of RAID 6) and swap out smaller capacity driives for larger ones as the need arises. Preface: I am deep into my search for a new DAS (not NAS) mass storage unit. ![]()
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