Frequently asked questions

Get answers to the most commonly asked questions about this product.

Effective capacity is the amount of storage allocated to applications. Using thin-provisioning, the effective capacity is virtually larger than the array usable capacity. When compression is applied, the space saving is predictable, thus eliminating the need to monitor against over-provisioning.

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2 PB is the maximum effective capacity of XIV model 314. This capacity is reached when all the soft capacity has been allocated to applications.

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Very reliable. IBM Real-time Compression uses patented IBM Random Access Compression Engine (RACE) technology, achieving field-proven compression ratios and performance with compressible data. The RACE compression technology has been successfully used in XIV as well as in other IBM storage products.

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XIV 314, like other former models, delivers better than five 9s of availability.

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Compression reduces TCO by increasing effective capacity while providing cost savings on physical space, power consumption and related administrative costs. Actual TCO reduction depends on hard capacity and compression ratio. A major part of the TCO is the purchase cost, typically compared per GB.

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Yes. With real time compression and temporal locality optimization, IBM RtC provides the only practical data reduction solution in the hybrid storage arrays market by allowing compression to be applied in real time to all the I/O, including active primary data at enterprise level performance.

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No changes to the existing environment are required. IBM Real-time Compression, which is part of the storage system, was designed to be implemented without changes to applications, hosts, networks, fabrics or other external storage systems.

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Yes, XIV provides the following performance benefits when using RtC: Better cache hit ratio, efficient remote replication and faster data movement.

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