Simple .NET/ASP.NET PDF document editor web control SDK

The scripts provided by Apple are meant to offer a starting point. You can easily tweak the settings according to the Xsan-specifc configuration parameters and by following the instructions published at the http://support.apple.com/kb/HT1200 Web page. If you use Apple s scripts to configure Promise RAID systems, make sure that the metadata LUN has a Read Policy of ReadCache, and a write policy of WriteThru. This ensures that any pending writes to a metadata LUN get written to disk immediately. Data storage LUNs, on the other hand, should have a Read Policy of ReadAhead, and a Write Policy of WriteBack. These settings ensure data that buffering during read operations is more aggressive, and that write buffers have filled before they re written to disk. Promise RAID hardware that has the latest firmware ships with Bonjour enabled. When you plug the device into your Ethernet network, it pulls an IP from DHCP and becomes accessible through Safari using Bonjour (from the Safari History, click the Bonjour entry under COLLECTIONS). Once you ve connected, you ll be able to upload the Vtrak scripts you ve downloaded from the Apple site. Click the Administrative Tools icon and select Import. Change the drop-down list for Type: to Configuration Script and then click the Browse button and choose the script you want to upload, clicking on Submit when you re ready. When the RAID system finishes formatting, you can label the LUNs (a process we ll get to later in this chapter).

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To set up the Xserve RAID (a legacy device employed prior to the Apple-Promise relationship), you use the RAID Admin utility, which lets you configure Multiple LUNs or RAIDs in each RAID device. Use the program when specifying the drives to put in each array as well as RAID levels and also when configuring RAID settings and notifications. Before you can do anything, you have to add a RAID to administer, so select Applications, click on Server, open RAID Admin, and you ll see the dialog box shown in Figure 4-7. Click the Add System button, and from the list of available Xserve RAIDS, choose the one you d like to configure. Enter the password (the default is public) to view the RAID system s setting, then click Add and you should see your choice appear in the utility s RAID list.

Figure 8-4. Client posts and navigates to the next HTML page. In Figure 8-4, the client posts the data to the server and then navigates to the next HTML page. Notice that this way of sending data to the server is similar to how a traditional application is built, in that you send data to the server and then decide which user interface to load next. The following points sum up the advantage to using this approach: The data is sent to the server only once, and only if the user presses the Form Submit button. The server side stores an application state that you can use HTTP GET to call whenever a particular HTML page is called. Therefore, you can use the Browser Back and Browser Forth buttons to move between pages without corrupting the server-side state or the client-side HTML page.

Once you ve added all of the Xserve RAIDs, you ll want to make the settings of each conform to the Apple standards To do that, click Settings in the Raid Admin utility toolbar, enter the management password for the Xserve RAID you re customizing, and then, under the System tab, make the following adjustments to the settings: Enter the Name for the Xserve RAID in the System Name field Select a Time Synchronization Method (hopefully you ll just be able to use an NTP server), and if appropriate, enter an NTP server to use for clock synchronization Use the Change button in the Passwords section to change the monitoring password, the management password, (or both) for the Xserve RAID to something other than the default settings The monitoring password allows for access to the main window UI to view stats, configurations, and logs.

ApplicationPermissions contains information about the permissions set on an application. ApplicationPermissionsManager allows you to retrieve the current permissions, query the setting of a particular permission, or ask for more permissions.

The management password lets you access the advanced configuration options presented in the toolbar Check the box for Restart automatically after a power failure to have the Xserve RAID reboot on its own after a loss of power Each controller on the Xserve RAID has its own network controller By default these receive DHCP addresses We suggest that you give each network controller a static IP address or use Static Mappings in your DHCP pool to give controllers IP addresses If the addresses change, controllers become unavailable in RAID Admin, and you must readd them, which generally isn t a good idea Xserve RAIDs do support Bonjour discovery in case you forget the configured IP address You can modify network settings from the Network Tab You ll find the FC settings under the Fibre Channel tab.