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White Papers

At Calsoft, we encourage our teams to dedicate time to research activities.
We have worked with some of the leading research laboratories in the USA, and have published technical papers in international conferences hosted by IEEE and NASA. Some of our papers on technology presented at global gatherings and seminars are available here for download.

Cloud Integration - New Vistas of Revenue
This white paper also discusses how Calsoft can resolve the technical challenges of integrating storage in the cloud with various approaches, backed by understanding of both cloud requirements and the capabilities of large class of enterprise storage products.


Application Aware Snapshot Management
This document provides a high level overview of Calsoft’s capability to design and develop unified AASM solution to backup, restore and recover application specific data using snapshot technologies on different storage systems.

mSAN

In this paper, issues related to Mobile Storage Area Network are included.This paper deals with the demand of storage of personal files and data retention capability of mSAN .


File Virtualization with the Direct NFS Protocol

This paper discusses a SANergy-like file system that works on UNIX clients against UNIX servers using NFS, and provides the performance of a SAN, and the manageability of NAS. This paper was published at the NASA/IEEE Symposium on Mass Storage Systems, Maryland.


NextGenNAS File System
This document talks about a CalSoft product, NextGenNAS which provides capacity management and scalability for NFS servers. It is a file virtualization solution for NFS servers on Linux, and allows horizontal scaling of capacity by adding NFS servers inside a single file name tree.


A highly available Network File Server
This paper describes the original design and implementation of the Highly Available Network File Server.


Implicit replication in a Network File Server
This paper discusses the conditions that replication strategies in network file servers need to meet in order to gain widespread acceptance. The paper also describes how these considerations were taken into account in the design of HA-NFS.


A comparison of two approaches to build reliable Distributed File Servers 
This paper compares the two approaches of providing reliable distributed servers. The first method being server replication and the other is the HA-NFS like approach in which dual ported disks connected to both the server and the backup are used. The paper further also discusses the advantages of the 2 approaches for various scenarios using a variety of parameters.


An analysis of three Transaction Processing Architectures
In this paper, issues involved in using multiprocessors for high performance transactions processing applications are investigated. A comparison is made between the best "Shared Disks" with "Shared Nothing" and "Shared Everything" architectures.


Parallel NFS 
Parallel NFS is a modification to NFSv4 with distributed and parallel storage. This paper discusses the Calsoft's implementation of parallel NFS.

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