A fundamental strength of z/VM is the ability for virtual machines to share system resources with high levels of resource utilization. z/VM V6.4 provides even greater levels of scalability, security, and efficiency to create opportunities for cost savings, while providing a robust foundation for cloud computing on z Systems servers.
z/VM V6.4 provides support for simultaneous multithreading (SMT) technology that extends per-processor, core capacity growth beyond single-thread performance for Linux on z Systems running on an IBM Integrated Facility for Linux (IFL) specialty engine on a z13 or z13s server. z/VM multithreading technology support can enable additional price/performance benefits over previous hardware generations and can meet workload requirements transparently. Improvements made in the areas of reliability, availability, and serviceability allow low-end devices such as IBM Storwize V7000, V840, and V9000 to be attached to a z/VM host removing the need for a SAN Volume Controller.
z/VM V6.4 is a supported environment using IBM Dynamic Partition Manager for Linux-only systems with SCSI storage. This simplifies system administration tasks for a more positive experience by those with limited mainframe skills. IBM Wave Version 1 Release 2 (V1.2) is now included in z/VM V6.4 as a priced feature. It can greatly simplify the task of administering a z/VM environment.
z/VM V6.4 can help you extend the business value of IBM z Systems technology across the enterprise by integrating applications and data, while providing exceptional levels of availability, security, and operational ease. World-class virtualization technology offered by z/VM 6.4 can provide the ability to host a large number of virtual servers running different operating systems on a z Systems server.
IBM z/VM V6.4 delivers:
- Support for up to 2 TB of memory that enables:
- Higher levels of workload consolidation
- Considerable growth in memory-intensive applications
- Superior levels of elasticity for workload spikes
- Increased efficiency with HyperPAV paging that takes advantage of IBM DS8000 features to increase the bandwidth for paging and allow for more efficient memory management of over-committed workloads
- Easier migration with enhanced upgrade-in-place infrastructure that provides an improved migration path from previous z/VM releases
- Improved operations with ease-of-use enhancements requested by clients that include:
- Querying service applied to the running hypervisor
- Providing environment variables to allow programming automation, based on systems characteristics and client settings
- Improved query capabilities for system shutdown
- Improved Small Computer System Interface (SCSI) support for guest attachment of disk and other peripherals, and hypervisor attachment of disk drives to z Systems to:
- Increase efficiency by allowing an IBM FlashSystem to be attached to z/VM for system use without the need for an IBM System Storage SAN Volume Controller (SVC).
- Enable ease of use with enhanced management for SCSI devices to provide information needed about device configuration characteristics.
- Concurrent code loads on the SVC, and devices incorporating SVC technology, is now supported without quiescing EDEVICE I/O.
- Increased scalability by exploiting Guest Enhanced DAT to allow virtual machines to take advantage of large (1 MB) pages, decreasing the memory and overhead required to perform address translation
- Integration of new CMS Pipelines functionality, not previously formally incorporated within z/VM, that allows a much more inclusive set of tools for application developers
- Availability of IBM Wave for z/VM as an optional, priced feature
For additional information, visit the z/VM website or contact your IBM representative.