Feature Specification
Host Operating System
OpenVMS Alpha
OpenVMS VAX
Required Software
DECram for OpenVMS
Optional Software
None
License
No separate license is required
Description
===========
DECram for OpenVMS is a disk device driver that improves I/O performance by
allowing an OpenVMS system manager to create pseudo disks (RAMdisks), which
reside in main memory. Frequently accessed data can be accessed much faster
from a DECram device than from a physical disk device. In Version 3.0,
DECram's capability is extended to use OpenVMS Galaxy shared memory to
create an OpenVMS shared memory disk. This takes advantage of OpenVMS Galaxy
shared memory with no modifications to any applications.
Features
========
Increases compatibility by taking advantage of OpenVMS Galaxy
shared memory with no modifications to applications
Increases flexibility by enabling all instances in an OpenVMS
Galaxy configuration to access the RAMdisk in shared memory
Increases performance so applications have faster access to data
on the RAMdisk in shared memory
New user interface simplifies management of RAMdisk
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