(This is post #4 of our multi-part series: “IBM i Cyber Resilience: Backup That Works”)
The Performance Bottleneck of Physical Tape
IBM i backup jobs are often scheduled within tight batch windows, especially in environments running nightly processing or high transaction volumes. Commands like SAVLIB and SAVOBJ must complete within defined timeframes to avoid impacting production workloads.
Physical tape introduces constraints that make this increasingly difficult to manage.
Organizations evaluating performance improvements often begin exploring solutions such as LaserVault ViTL when backup jobs begin overlapping with operational processing.
Where Tape Slows IBM i Backups
Technical limitations include:
- Sequential write constraints of tape devices
- Device contention when multiple jobs target the same tape resource
- Delays caused by tape mounting and volume switching
- Limited ability to parallelize save operations
Even with BRMS optimization, these constraints persist.
Operational Cost of Slow Backups
From a system perspective:
- Extended backup windows reduce available batch time
- Jobs may need to be rescheduled or split
- Operator intervention increases during long-running saves
Virtual Tape Performance Gains
Virtual tape improves performance by:
- Writing to disk instead of sequential tape media
- Supporting higher throughput rates
- Allowing multiple virtual devices for parallel saves
Midway through evaluation, teams often find that LaserVault ViTL significantly reduces backup duration while maintaining compatibility with existing commands.
Integration Benefits
With integration into deduplication and replication workflows:
- Backup data is optimized post-write
- Data movement becomes automated
- Retention policies can be applied consistently
Efficiency as a Resilience Factor
Shorter backup windows enable:
- More frequent save operations
- Reduced data exposure between backups
- Better alignment with recovery objectives
What Comes Next
With performance addressed, organizations turn to the broader question of cyber resilience.
If backup windows are impacting your IBM i operations, it is time to evaluate alternatives.
Explore your options. Book a demo or request a quote.
Next in the series: Building a cyber resilient IBM i backup strategy.
Get caught-up! Read the previous posts in this series:
Part 1: “Eliminating Manual Tape Risk in Modern IBM i Environments”
Part 2: “Improving Recovery Confidence in IBM i Backup Strategies”
Part 3: “Modernizing IBM i Backup Without Disruption”
For organizations modernizing IBM i backup and recovery, LaserVault ViTL provides a purpose-built virtual tape architecture designed for IBM Power Systems. It delivers high-performance tape emulation, sustained throughput for large save operations, fast object and system-level restores, and automated replication for disaster recovery, all while maintaining compatibility with native IBM i commands and existing workflows. By removing the limitations of physical tape, IT teams gain faster backup windows, more reliable recovery, and reduced operational overhead, resulting in a simpler and more resilient backup strategy.
If you are evaluating ways to strengthen IBM i resilience and streamline daily operations, explore your options at LaserVault or reach out to ax@laservault.com.
About LaserVault
For over 35 years, LaserVault (Electronic Storage Corporation) has been building reliable software solutions for IBM Power Systems. Our team combines deep technical experience with responsive support to help businesses and resellers get exactly what they need—fast.
We also partner with IBM, Cohesity, Rubrik, ExaGrid, Pure Storage and other technical experts to deliver trusted, modern solutions.
Visit laservault.com or email info@laservault.com to request a quote, schedule a demo, or ask about our reseller program.
