# enaio® documentviewer

enaio® • 11.0 »

You can determine the size of the cache area required by enaio® documentviewer using the following formula:

"Expected document volume per month" (converted into GB) x "expected previews available immediately in the client in age in months" x 2 = recommendation for the minimum HDD size for cache to be reserved for enaio® documentviewer.

Or simply: Volume(GB/month) * Preview age(no. of months) * 2 = Cache size(GB)

According to the system requirements, 1 MB is required per document (eight pages) in the enaio® documentviewer cache. This makes it possible to make a projection based on the number of documents or pages.

## Recommendation

enaio® documentviewer should be allocated to a separate host. You also need to check that the document volume per hour/day/week can be handled with the given specifications (1 CPU/512 MB RAM). This is not the case in most instances where periodic imports are run and users do not expect to receive the previews immediately. It is possible to deploy an additional enaio® documentviewer that generates and supplies previews ad hoc for users in such cases.

All databases, temp directories, and converters are always local and therefore run a large number of read and write operations on the hard drive. If several enaio® documentviewer are in use, the cache is shared by them all and can be located in the network (on a \\UNC\path).

Navigation | Navigate through the help pages using the table of contents on the left. If it is not displayed when the window width is small, you can temporarily show it via the hamburger menu on the right. Use the arrows on the toolbar to navigate to the next/previous page. You can show hidden areas. Use the toolbar to show all hidden areas at once:
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Clicking the product icon in the header returns you to the beginning of the current area. Use the toolbar to access the initial page:

Full-text Search | The search does not feature case sensitivity. A search term is also found as part of a string. Multiple search terms in the exact order as entered will be found if they are enclosed in quotation marks (").
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Boolean Operators | You can use the following Boolean operators:
AND | Finds the pages that contain all search terms. Spaces, '+', and '&' function the same.
OR | Finds the pages that contain at least one of the search terms. The pipe character (|) functions the same.
You can combine search terms and Boolean operators using parentheses. Example: Paul AND (Peter OR Meyer)
The current portal area is used for the search. You can use Google to search through all portal areas. Example: follow-ups site:help.optimal-systems.com

Please contact the OPTIMAL SYSTEMS technical editorial staff for questions and comments regarding the documention at dokumentation(at)optimal-systems.de.