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IBM XIV User Manual

IBM XIV
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Parameters:
Name Type Description Mandatory Default
vol Object name Master volume
name.
N N/A
cg Object name Master CG name. N N/A
new_
designatio
n
Enumeration The new
designation of the
peer
If not specified, the
command will act
as a toggle -
changing the
designation of the
peers between
Primary and
Secondary.
N none
This command changes the designation of the mirroring peers - from Primary to
Secondary, and from Secondary to Primary. The command is issued on the Master
peer and affects both peers. The coupling has to be operational.
The designation change implied by this command reflects a decision to reset the
designation of the mirroring peers, in contrast with the operational role - which is
denoted by the Master/Slave title.
There is no obligation to issue the command with a specification of the new
designation. In case that the new designation is not specified, the command will
switch the designations of both peers from their current value. The Primary will
change to a Secondary, and the Secondary will change to a Primary.
Example:
mirror_change_designation cg=reggie13_cg new_designation=Secondary
Output:
Command executed successfully.
Access Control:
User Category Permission
Storage administrator Allowed
Storage integration administrator Allowed
Application administrator Disallowed
Security administrator Disallowed
Read-only users Disallowed
Technicians Disallowed
Completion Codes:
v VOLUME_BAD_NAME
Volume name does not exist
v VOLUME_NO_MIRROR
Chapter 11. Remote Mirroring 207

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IBM XIV Specifications

General IconGeneral
Power SupplyRedundant power supplies
Drive TypeSATA
RedundancyFully redundant components
ConnectivityFibre Channel, iSCSI
Form FactorRack-mounted
CacheDistributed cache across modules
Data ProtectionSnapshots, remote mirroring
PerformanceHigh throughput and low latency
ScalabilityModular, scale-out architecture
CoolingRedundant cooling
ArchitectureGrid-based, distributed architecture

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