The configuration information is broken down by the platter (copy) type. The button that is selected will indicate which platter type applies to this copy. If you make any changes in this dialog box, you must click Apply to permanently store your changes before selecting a different copy or closing the dialog box.
Mass Storage indicates that the platter is on a type of media that remains mounted and available at any time. The Mass Storage fields allow you to set several configuration choices for a mass storage platter copy. The mass storage copies use the same mounted folder for the next volume of documents as the last volume.
The Copy 1 mass storage platter cannot have its type altered; it must always be a Mass Storage copy. An error message is displayed if you attempt to change the copy type.
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Mass Storage Platter Characteristics |
Description |
|---|---|
|
Uncommitted |
Indicates that this copy will receive all documents before they are committed into the Disk Group. This option should only be available for selection for Copy 1 and not available for any other mass storage copies in the Disk Group. |
|
Infinite Number of Volumes |
Allows the mass storage copy to continuously promote, regardless of how much space is available on the physical drive where the copy is stored. Volumes with this setting are not added to the Delete queue. When creating a new Disk Group, this option is selected by default. Note:
If you set the copy to allow an infinite number of volumes, you must maintain a proper schedule of platter administration to ensure that you do not run out of space in the middle of your daily document processing. |
|
Finite Number of Volumes |
Helps maintain available space for mass storage volumes. Setting finite volumes allows entry of Minimum # of Volumes and Maximum # of Volumes for the Disk Group. |
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Minimum # of Volumes |
Available only if Finite Number of Volumes is enabled. Minimum # of Volumes sets a low watermark for how many volumes must be kept online for a Disk Group copy. Ideally an installation would relate the minimum number of volumes to the time in days, weeks, or months worth of data that should be kept on the storage device associated with this Disk Group copy. The system will not allow volumes to be deleted if the result of that deletion causes less than the Minimum # of Volumes to exist online. The Minimum # of Volumes thus protects an organization against excessive delete behavior that could cause retrievals from the next Disk Group copy that is possibly on slower media. |
|
Maximum # of Volumes |
Note:
The Minimum # of Volumes cannot be equal to the Maximum # of Volumes. Available only if Finite Number of Volumes is enabled. Maximum # of Volumes sets the high watermark for how many volumes can be kept online for a Disk Group copy. Ideally the Maximum # of Volumes is set to a sufficient number of volumes greater than the Minimum # of Volumes to allow a predictable window of time for an administrator to perform routine delete operations. The closer the Maximum # of Volumes is set to the Minimum # of Volumes, the more frequently an administrator will need to delete older volumes. The Maximum # of Volumes must be at least one volume less than the actual maximum quantity of filled volumes that will fit into the space allocated on the device for this Disk Group copy. Note:
This setting is not considered during ad hoc importing. If the number of volumes exceeds the maximum number of volumes specified during an ad hoc import, the setting is not respected and a new volume is created. |
Example: Assume that the Mass Storage drive has been designated to store 4 gigabytes of documents and you have configured your volume size to 500000 kilobytes. The largest maximum value you should configure is 7, because the most you could store is 8 volumes and you should enter 1 less than the maximum.
The reason for using one less is that if you process documents into your system using COLD, DIP or any other batch process, then it is possible to begin a batch with the maximum number of volumes on line and will need to promote in the middle of the job. If this occurs, the system will promote the last volume and complete the job on the next volume. At this point, you will have more than your configured maximum number of volumes on line. After this job is completed, however, you cannot add more documents to the Disk Group until the oldest volume is deleted.
A copy selected for Removable Media indicates that a platter can be mounted or dismounted at any time. If a platter is not mounted when a document on that platter is accessed, then the Mount Disk dialog box is displayed, which prompts you for the location of the platter.
You can change a removable copy type to either a Mass Storage or Backup copy.
After the first copy of a volume has been committed, the removable copy will have documents added to it. The system does not promote removable copies and will use the same folder as the previous volume. Instead, the system will automatically ask for the new path for the documents when a volume is promoted.
It is best to pre-configure the paths for each volume before the volume is created. You can enter the paths to each new volume for this copy by selecting the Activate Platter Paths box. By default, this option is selected when the copy is of the Removable Media type. It will activate the Platter Paths button. Click Platter Paths to open the Platter Paths dialog box and type the paths for each new volume.
Backup platters are specifically created during a Platter Administration backup process. The backup copy is created, but will not appear in the backup queue until the volume is full. No documents are written to the backup copy until the backup process has been completed.
You can change a backup copy to either a Mass Storage or Removable copy type.
Only created backup copies can be changed to a Mass Storage copy type.
Import copies only exist in an Import Disk Group, which is automatically created when an Import process is initiated via Import Manager. When data is imported into the Import Disk Group, the files remain on their original distribution media, usually a CD.
Import copies cannot be changed to any other type and no copy can be changed to be an Import type. It is important that only imported platters be identified as import copies.
A Foreign copy references files in a storage area that was not created by OnBase. Instead of processing these files and moving them into a Disk Group, only the index information and a simple reference to the file location is stored. This allows access to the files without actually having to move them to a Disk Group location. Foreign Disk Groups are populated by a Self Configuring DIP Process.
An Externally Filled copy is a valid logical placeholder in the Disk Group that is recognized by the database. The data management system will not place any data in that copy. The responsibility of copying data into the Externally Filled copy is the responsibility of the system administrator.