Providing scalable, reliable storage
and access management for the lifetime of enterprise-wide data - page
2
Keeping Data Available and Accessible
StorHouse/SM provides file management features to ensure high availability
and accessibility for all StorHouse data. For user data, these features
include the capability to:
Create backup copies of files automatically on any
StorHouse-managed media to provide data redundancy
Group files in logical collections called file sets
to enhance performance, use space more efficiently, and set storage
limits
Migrate data from the performance buffer to other
storage layers as access requirements diminish to keep storage costs
aligned with the value of data
Relocate a file or all files stored on one or more
volumes to ensure availability if a volume becomes degraded
Retain files by application so that each type of enterprise
data remains available to satisfy industry-based compliance and regulatory
rules
Stage file extents, or units, on demand from alternative
storage media (for example, tape) back to the performance buffer for
faster access (see Figure 2)
Replicate selected data electronically between StorHouse
systems for additional backup options and enhanced business continuance
Access a duplex, or second copy, of data for reading
or for load balancing requests across multiple libraries if the primary
copy becomes unavailable.
Figure 2: Data Staging and Migration
StorHouse/SM protects critical system files by shadowing
directory information on a second magnetic disk. In the unlikely event
that primary and shadowed directories become corrupted, the software re-creates
them from checkpoint files, directory extraction files, or information
physically stored on data cartridges.
