IBM to unveil new version of high-end XIV storage system
The XIV Gen.3 array is priced at about $2M and arrives in September
Computerworld - On Wednesday, IBM is expected to announce the third generation of its high-end, grid-based XIV Storage System, which offers improved performance for virtualized server environments, analytics and cloud computing.
IBM claims the new IBM XIV Storage System is up to four times faster than the previous Gen.2 model and features improved management software that makes it easier to use, allowing XIV to support more workloads for a broader set of enterprises.
With this release, IBM moves from Intel Nehalem processors to the latest Westmere chips. It also upgraded from a gigabit Ethernet backbone to an InfiniBand interconnect and moved from 4Gbit/sec Fibre Channel to 8Gbit/sec Fibre Channel (FC) front-end ports.
Each XIV Gen.3 system has two InfiniBand switches with redundant inter-module connectivity for 600Gbit/sec total internal bandwidth.
IBM also increased the number of iSCSI ports from six to 22.
"We're starting to see demand pick up for IP connectivity, though I'd still say it's slower than what we in the industry predicted it would be by this point in time," said Bob Cancilla, vice president of enterprise disk storage at IBM. "But this will help [customers] get prepared for that future transition into greater workload for IP connectivity."
IBM also added more memory on the XIV, moving from 256GB to 360GB of DRAM. IBM also changed the drives in the enclosure from serial ATA (SATA) drives to higher performance serial SCSI (SAS) drives. The enclosure can hold up to 180 drives, the same as Gen. 2.
Gen.3 of the XIV also can handle centralized administration of multiple XIV systems through a plug-in for vCenter Server, VMware's cloud management software that is available as a free download.
In the first quarter of 2012, IBM plans to offer an option that allows XIV users to add an autonomic solid-state drive (SSD) caching layer. The SSD would add 7.5TB of cache for high-level workloads, such as relational databases and online transactional processing.
"We'll put an SSD into every [disk drive] drawer and it will act as a caching layer, sitting between the controller and the spinning disk. This...will have all the performance benefits of SSD but it doesn't complicate management from a data tiering standpoint," Cancilla said.
IBM is pitching the XIV as an ideal storage solution for virtualized server environments.
Cancilla referred to the recently announced vSphere 5 cloud management software from VMware as one application that would increase I/O requirements on storage arrays.
IBM acquired the new array technology when it purchased Israeli storage start-up XIV in January 2008.
XIV's storage system, Nextra, was based on a grid of standard hardware components. Nextra's self-healing, self-tuning and dynamic scaling capabilities gave IBM new technology to address the growing requirements for high-performance storage for digital archives, digital media and Web 2.0 applications.
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