MCRAID ARCHTTP MANAGEMENT CONSOLE
The sheer amount of configuration options that are capable using this controller can be a bit daunting at first. Areca provides the user many in-depth controls not available on some controllers, but the trick is presenting them in an easy to use manner.
First is your pre-boot GUI, the McBIOS RAID manager, which is accessible during boot of the controller. Then there is the Web browser-based McRAID storage manager, accessible via the ArcHttp proxy server. The ARCHTTP, in layman’s terms, it is a control program accessed through your web browser. Once the program is initiated a list of the available controller(s) will be presented. With the example below we have three controllers available for configuring, two of the 1882x, and an 1880IX-12.
The lowest device listed is the cfg assistant, which allows the user to configure a number of settings relating to the configuration of the user interface itself. Email notifications of events that occur with the device can be sent automatically to the administrator/user. SNMP trap configurations and general configurations are also located in the same browser pane.
The screens we will focus on primarily are entered by selecting the Controller ID then selecting the “launch Browser” selection. Your preferred browser will then open with the management utility running inside. Here we are using Firefox. There are three tabs along the top of this browser pane, as we have opened all three controllers simultaneously. Selecting each pane will present the user with all of the configuration options for each controller separately. Down the right had side is a long list of options that the user can utilize for controller and array management.
The pane below shows the basic system configuration options. The user has a great amount of control over many parameters. For instance Volume Data Read Ahead will allow the selection of many varying levels of read ahead functionality. With ‘Conservative’, ‘Aggressive’, ‘Normal’ and ‘Disable’, there is a lot of room for adjustments to the amount of read ahead one would like to use.
This is just but one example of many areas that Areca affords the administrator a high degree of granularity over the controls of the controller. Many manufacturers simply provide you with the option to either enable or disable read ahead.
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With the advanced configuration screen the administrator can again control some aspects of the controller down to a much tighter performance margin. These types of modifications can allow the end user to experience an extremely high level of “tweaked” performance for the workload that is specific to their application.
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Bear in mind that these are but a few screens in a very long list along the left. While at first it can be a bit intimidating to a new user, but the great thing about these controls are that they can be as simple, or as advanced, as the user requires. The default settings on many of the more involved settings are adequate for a large range of workloads.
It is easy to see why users who seek a very high level of customization and performance tweaking seek out Areca RAID solutions for many specialized applications.