IBM Storwize V7000, Введение и руководство по внедрению

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© Copyright IBM Corp. 2013. All rights reserved.
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Summary of changes
This section describes the technical changes made in this edition of the book and in previous
editions. This edition might also include minor corrections and editorial changes that are not
identified.
Summary of Changes
for SG24-8068-01
for IBM Flex System V7000 Storage Node Introduction and Implementation Guide
as created or updated on March 12, 2014.
September 2013, Second Edition
This revision reflects the addition, deletion, or modification of new and changed information
described below.
IBM Storwize Family Software for Storwize V7000 V7.1.x is now available on IBM Flex
System V7000 Storage Node for upgrade to and new purchases.
New hardware
Larger drives increase the maximum internal capacity by up to 33% using 1.2 TB 2.5 inch 10K
RPM SAS drives instead of 900 GB 10K RPM SAS drives. Or, the capacity can be increased
by up to 20% using 1.2 TB 2.5 inch10K RPM SAS drives instead of 1 TB 7.2K RPM NL SAS
drives, which was formerly the maximum size drive available.
Changed information
Scalability enhancements enable the Storwize Software family to handle larger configurations
with more hosts using more volumes with more virtual machines:
򐂰
Increases the number of hosts per I/O group from 256 to 512.
򐂰 For a cluster, increases the host limit from 1024 to 2048.
򐂰 Increases the number of volumes or LUNs per host from 512 to 2048. This increase is
applicable to any host type subject to host type limitations. The increase is applicable to
FC and FCoE host attachment types (subject to host limitations), but not for iSCSI.
򐂰 Increases the number of host WWPNS per I/O group to 2048 and per cluster to 8192.
This increase applies equally to native FC and FCoE WWPNs.
Ability to use IBM Real-time Compression and EasyTier together enables users to get high
performance and high efficiency at the same time.
Copy services now has a new function that permits to switch from Metro Mirror to Global
Mirror (with or without change volumes) without the need to re-synchronize.