Many enterprises are failing adequately to back up virtualised and web-based computing systems, according to Symantec.
The security firm's 2010 Disaster Recovery Study found that just one in five businesses use failover or replication tools with virtual systems, and that up to 44 per cent of all data on virtual systems is not being backed up.
Resource constraints are the principal reason, according to the survey. Some 59 per cent of respondents cited shortfalls in personnel, budget or physical space as hampering virtual backup plans.
Symantec said that the results indicate the need to adapt backup and recovery systems that integrate with virtual environments as well as physical systems.
"Organisations are adopting new technologies such as virtualisation and the cloud to reduce costs and enhance disaster recovery efforts," said Dan Lamorena, storage and availability management group director at Symantec.
"But they are currently adding more complexity to their environments and leaving mission-critical applications and data unprotected.
"Datacentre managers should simplify and standardise so they can focus on fundamental best practices that help reduce downtime."
Around 72 per cent of businesses reported that system upgrades are the leading cause of outages, followed by power failures (70 per cent) and cyber attacks (63 per cent).
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