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Admin. Guide Vol. 2 - NC State Remedy Implementation

Admin. Guide Vol. 2 - NC State Remedy Implementation

The FTS index for a

The FTS index for a field is automatically updated and does not requiremanual administration when you create, delete, or modify requests.Note:The Index For FTS check box does not appear for servers that donot support the FTS option.Estimating the Size of the FTS IndexPlace the FTS index in a directory that has sufficient disk space. The directorymust be large enough to accommodate approximately 1 to 1.5 times theamount of data that is indexed for FTS. For example, if the total amount ofdata in all fields you want to be indexed for FTS in all forms is 100 MB, thenbetween 100 and 150 MB of disk space is required for the indexes. Thisexample of determining the size of an FTS index is an approximation only.Note:Create indexes on local partitions in your system, not NFSmountedpartitions. Indexing and searchingNFS-mounted directories takes significantly longer than localdirectories.➤Estimating the Size of the FTS IndexUse this procedure to determine approximately how much disk space isoccupied by the FTS index.1. Estimate the size of text in your database.For example, take a small sample of requests and calculate the averagesize of data in the field. Then multiply this average by the number ofAR System requests to derive the size of text in your database.2. Use a number between 1.0 and 1.5 as a multiplier.The ratio of the size of the FTS index to source text can differ widely basedon, for example, the size of your Ignore Words List.If the estimated size of text is 100 MB, the FTS index occupies between100 and 150 MB of disk space: 100 MB * 1.0 = 100 MB as the lowerboundary of the FTS index and 100 MB * 1.5 = 150 MB as the upperboundary.4-30 Action Request System Administrator’s Guide, Volume 2

Moving the FTS IndexMoving the FTS IndexThere might be situations when you need to move the FTS index, especially ifit becomes quite large. You can choose to move the index manually and thenspecify the new location in Remedy Administrator, or you can move the indexby rebuilding the index at the new location. See “Rebuilding the FTS Index” onpage 4-28 for information about rebuilding the FTS index at a new location.➤Moving the FTS Index Manually1. Estimate how much space you need in the new directory location.2. Ensure the number of pending AR System requests in the/db/arftp.lst file reaches 0.3. Open the Server Information dialog box, and disable FTS by clearing theEnable Full Text Search check box.4. Copy the contents of the FTS index directory to its new location.5. Type the new location of the index in the FTS Index Directory field.6. Select the Enable Full Text Search check box.7. Click OK (UNIX) or Save (Windows).8. Remove the old FTS index.Displaying FTS Weight in a Results ListIn the Results List Fields tab of the Form Properties dialog box, you canconfigure results lists to display the FTS weight for all requests retrieved.➤Displaying FTS Weight in a Results List1. Open the form for which you want to define the results list format.2. Choose Form → Form Properties.The Form Properties dialog box appears, as shown in Figure 4-7.Full Text Search 4-31

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