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IBM Flex System V7000 Storage Node Introduction and Implementation Guide
A compression evaluation tool called the IBM Comprestimator can be used to determine
the value of using compression on a specific workload for your environment. More details
can be found at the following website:
http://www-304.ibm.com/support/customercare/sas/f/comprestimator/home.html
There are compression performance enhancements included in IBM Flex System V7000
Storage Node version 7.1.x or later, which result in improvements on performance and
cache destage latency utilization. The most notable improvement is when the
compression software detects a block which is unlikely to achieve reasonable
compression ratio, it will write the block to the back-end storage without compressing it to
avoid unnecessary overhead.
External Storage Virtualization (Licensed per enclosure of the external storage
subsystem):
With this feature, an external storage subsystem can be attached through the Fibre
Channel or by FCoE to IBM Flex System V7000 Storage Node. These devices cannot be
presented through an iSCSI connection. The devices presented are treated as mdisks and
can be mapped to storage pools for volume creation and management. After the storage
from the external system is integrated into IBM Flex System V7000 Storage Node and
added to a storage pool, it is available to be virtualized and used by any of the features
and functions of IBM Flex System V7000 Storage Node.
2.4 IBM Flex System V7000 Storage Node licensing
IBM Flex System V7000 Storage Node has both optional and mandatory licenses.
2.4.1 Mandatory licensing
The following IBM Flex System V7000 Storage Node mandatory licenses are included.
Base Enclosure Licensing
Each IBM Flex System V7000 Control Enclosure and each IBM Flex System V7000 Disk
Expansion Enclosure uses the IBM Storwize Family Software for Flex System V7000. A
quantity of one IBM Storwize Family Software for Flex System V7000 license is required for
each enclosure, whether control or expansion enclosure.
For example, an IBM Flex System V7000 Storage Node order consisting of one control
enclosure and two IBM Flex System V7000 Disk Expansion enclosures requires three IBM
Storwize Family Software for Flex System V7000 licenses, one license for each enclosure.
IBM Storwize Family Software for IBM Flex System V7000 Storage Node includes the
following features and capabilities:
Simplified management with an intuitive GUI to aid rapid implementation and deployment.
Easy Tier technology for increased storage performance.
FlashCopy and snapshot functions help to support the creation of instant copies of data to
help avoid data loss and improve space utilization.
Thin provisioning to help capacity planning.
External virtualization: External Storage Virtualization is supported only on FC and
FCoE but
not
iSCSI.
Содержание Storwize V7000
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