When changing the location of the index cache directory, note the following requirements.
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Use a file system dedicated to index data, so that non-index data does not consume index capacity.
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Estimate your index cache space requirements with a sufficient margin of safety by allocating more space rather than less. If you are maintaining backward-compatible content indexes generated by a previous software version, the index cache directory may require more space. For more information, see Indexing System and Hardware Requirements.
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For best performance, locate the index cache directory on a solid state drive (SSD).
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Do not locate the index cache directory on a compressed drive.
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For Windows, note the following:
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Do not place the index cache directory directly under the root directory of the drive.
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Do not place the index cache directory directly under the software_installation_directory.
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For UNIX, do not specify root as the index cache directory.
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When entering the index cache directory path, note the following:
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The path may not exceed a total of 50 characters.
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The path may not contain special characters.
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The path may not contain Unicode characters.
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The path may not contain the word "temp" (for example, c:\Indexcache_temp)
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Do not locate the index cache directory on the CommServe computer, unless you only have one MediaAgent and that MediaAgent is located on that computer.