Hypercache
Introduction
IMS/21 Hypercache is used when documents are uploaded into cache or copied from optical cartridges and stored on a NAS device (such as the Adaptec Snap Server) for rapid retrieval. The IMS/21 Hypercache Module must be purchased and a new license code will be issued.
The advantage to this feature is rapid restoration of the image from storage because using a network drive is faster than using an optical device. The optical jukebox has to switch cartridges in and out of the read/write drive, while IMS/21 Hypercache does not need to do this. When using IMS/21 Hypercache, users will rarely need to wait while older images are retrieved, the image would immediately be displayed.
Now you can utilize network storage devices to provide virtually unlimited, low cost storage alternatives and multi-tasking capabilities that will give you fast access to old documents. IMS/21 Hypercache Storage can be used with Optical jukeboxes or as a low cost storage alternative.
IMS/21 Hypercache - Multi-Level Storage Document Cache (pre-requisite - Librarian & IMS/21 Server
The IMS/21 Hypercache module provides unlimited network hard disk storage, which works in conjunction with IMS/21 Librarian and the IMS/21 Server modules. Documents are copied from optical cartridges and stored in cache on a dedicated network for rapid retrieval of documents. This feature reduces the amount of near line storage and greatly improves response time to display any document. This will virtually eliminate any Optical, CD or DVD performance degradation when accessing old documents stored on an optical device.
When the user requests to view a document, IMS/21 checks the document availability by first checking the IFS (PACCACHE), then IMS/21 Hypercache, and then Optical. If the document is in cache it will be displayed. If the document is not on the IFS and IMS/21 Hypercache is not used, a request to upload from optical is made. IMS/21 then displays the document to the user by using a PC Client, in a browser or by using ActiveX. The IMS/21 Storage Subsystem running on your system automatically manages these documents. IMS/21 Hypercache provides 100% secure access as no user can gain access to the IMS/21 Hypercache directly.If the document which the user has requested is not found in IMS/21 Hypercache or the IMS/21 Hypercache Server is not active, the document will automatically be retrieved from the optical device.
IMS/21 Hypercache Configured as Server for Primary Write
The IMS/21 Hypercache configured as a Server for Primary Write can utilize network storage devices to provide virtually unlimited, low cost storage alternatives and multi-tasking capabilities that will give you fast access to old documents. This can be used as a stand-alone storage system with IMS/21 as a low cost storage alternative. The IMS/21 configuration as Server for Primary Write writes primary items directly to the NAS device (such as an Adaptec Snap Server), in addition to the original copy of the document in the PACCACHE directory in the IFS. Consequently, working the same way as writing items to the optical device (i.e., 3995 or Plasmon), acting as an optical server.
IMS/21 Hypercache Configured as Server for Primary Write (pre-requisite IMS/21 Librarian and IMS/21 Server)
The NAS device works in conjunction with the IMS/21 Librarian and IMS/21 Server modules. Migrate all of your existing documents off the cumbersome, slow and expensive optical cartridges and onto the NAS device for ease in retrieval. IMS/21 configured as Server for Primary Write includes everything you need to migrate the documents and eliminate optical jukeboxes and their expense. IMS/21 configured as Server for Optical Write provides 100% secure access as no user can gain access to the IMS/21 configured as Server for Primary Write directly. See our Sales Department for more information on a High Performance Block and File Storage Snap Server.