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Server Consolidation and Virtual Server Solutions VMware GSX Software Microsoft Virtual Server Virtual server-based computing, by definition, has multiple virtual servers leveraging the same hardware platforms and therefore they centralize multiple loads of I/O data retrieval, disk storage and processing on a single physical server. While this method improves hardware utilization and cost-effectiveness, it also places a larger demand on disk I/O resources that can degrade guest OS (virtual servers) performance. The performance of storage intensive user applications is especially sensitive to this model of computing. Pressure is on to consolidate servers in the wake of a massive buildup of server clusters and server farms. The key is to consolidate servers without losing application performance. Disk caching technology promotes server consolidation by getting more out of your existing infrastructure. Reinvigorate servers that are currently waiting for data from slow hard disk based storage system by adding DataCore UpTempo disk caching software. Unleash Your Virtual Servers Performance with DataCore UpTempo Disk Caching Virtual servers often are bottlenecked by disk I/O - Many virtual servers trying to do disk I/O at the same time and the collective I/O loads of the many guest OS can slow down a complex of virtual servers. Heavy loads can result in unacceptable client performance Even under moderate server loads, users of VMware software and Microsoft Virtual Server may experience poor and sluggish response times. During very heavy load periods, application startup times can increase to minutes instead of seconds, SQL queries and other compute- and data-intensive operations can lengthen to the point where processes must be killed for lack of responsiveness. As increased demands are placed on system resources - particularly storage resources - context switching rates can quickly rise above healthy levels. At very high rates, the system is actually realizing less work. This is because threads and processes are increasingly unable to access the resources they require, so the operating system must switch many times from one waiting thread or process to another until it finds one with available resources. This condition is frequently accompanied with high levels of disk thrashing. Use DataCore's UpTempo to boost Disk I/O performance When disk I/O bottlenecks limit system performance, other system resources wait idly by. By putting these resources to work, system performance is improved. UpTempo's powerful disk cache help optimize system resource utilization by applying processor and memory resources to the I/O bottleneck problem. The UpTempo block-level cache assesses your workload I/O patterns and optimizes the flow of I/O traffic between memory and disk locations. Inserted into the path of the I/O subsystem, it learns to cache the most active read/write disk I/O. With UpTempo enabled the cache technology reduces context switching, enhances server response and results in a much more satisfying and productive user experience. Is your disk light blinking? Try UpTempo Now! 
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