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Altair Accelerator Administrator Guide
Configure and manage the use of Accelerator after it is installed.
Storage Aware Scheduling
This daemon vovfilerd replaces older daemons like vovisilond, vovnetappd and vovregulatord. Also the utility vovfiler_setup is no longer needed. The visualization of the filer information is now done either via the vovfilerd.cgi page or via the utility vovfilerdgui.
Storage Aware Grid Acceleration (SAGA) with vovfilerd
vovfilerd is used to make Accelerator aware of the status of the filers.

Welcome
What's New
View new features for Accelerator 2025.1.0.
Accelerator Overview
Discover the available Altair Accelerator guides.
Accelerator Tutorials
Discover Accelerator functionality with interactive tutorials.
Altair Accelerator User Guide
Basic tasks in Accelerator, including submitting jobs, tracking job information, and analyzing and solving common problems.
Altair Accelerator Administrator Guide
Configure and manage the use of Accelerator after it is installed.
- Use Accelerator Help
  Accelerator documentation is available in HTML and PDF format.
- Accelerator Quick Start
  Accelerator has two main commands, nc and ncmgr.
- Command Line Interface
- Quick Reference
- Accelerator Server and System Customization
- Start and Stop Accelerator
- Job Management
- Log Files
- Database
  Accelerator stores historical information about jobs in a relational database. As of version 2015.09, the database is fully integrated and managed as part of Accelerator. This section provides an overview of the components that run and manage the database.
- FairShare
- Jobclasses
- Preemption
  Preemption is the process of reserving or revoking resources from other jobs in order to help "important jobs" finish quickly.
- Resource Management
  Altair Accelerator includes a subsystem for managing computing resources. This allows the design team to factor in various constraints regarding hardware and software resources, as well as site policy constraints.
- Resource Management with RDS
  This is a usage guide for the Resource Data Service (RDS), an alternative service for managing License resources and License-first scheduling in Accelerator.
- Configure Container Integration
- Streaming Data Service
  The Streaming Data Service (SDS) publishes a time series data stream that can be consumed by existing Kafka systems and compatible reporting tools to monitor VOV projects.
- Environment Management
  To ensure the correct and repeatable behavior of the tools, the environment must be controlled. This chapter explains how VOV supports multiple reusable environments.
- Directories and Files
- Alerts and Notifications
- System Tasks
- Upgrade Accelerator
  This section provides instructions to change the software version on which Accelerator runs.
- Storage Aware Scheduling
  This daemon vovfilerd replaces older daemons like vovisilond, vovnetappd and vovregulatord. Also the utility vovfiler_setup is no longer needed. The visualization of the filer information is now done either via the vovfilerd.cgi page or via the utility vovfilerdgui.
  - Storage Aware Grid Acceleration (SAGA) with vovfilerd
    vovfilerd is used to make Accelerator aware of the status of the filers.
  - Start and Configure the Daemon
  - vovfilerd Behavior
  - Tuning vovfilerd
    You may need to refine the tuning of the L1,L2,L3 limits that define the behavior of vovfilerd for each specific filer. We suggest a simple experiment that will help you see the effect of storage-aware-scheduling and also may help you decide on the tuning.
- Frequently Asked Questions and Troubleshooting Tips
- Backwards Compatibility and Migrating from Previous Versions
  This chapter provides information about deprecated features that are still supported. This information is provided should you see older commands in use after a software upgrade or migrating to a newer Accelerator.

Storage Aware Grid Acceleration (SAGA) with vovfilerd

vovfilerd is used to make Accelerator aware of the status of the filers.

These filers can be of any type, but special treatment is done for Isilon filers (https://www.dellemc.com/en-us/storage/isilon/index.htm), NetApp filers, and ElastiFile filers.

For this daemon to work, you need:

Access to the curl binary
A user/password pair on each filer to be able to use the RestAPI (ask your Admin to help you with this)