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US 8,433,869 B1Granted
Virtualized consistency group using an enhanced splitter
AssigneeEMC International Company
InventorsAssaf Natanzon, Yuval Aharoni
Life of this patent
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Abstract
In one aspect, a method includes forming a virtualized grid consistency group to replicate a logical unit, running a first grid copy on a first data protection appliance (DPA) replicating a first portion of the logical unit, running a second grid copy on a second DPA replicating a second portion of the logical unit, sending IOs to the first DPA if the IOs are to a first set of offsets and sending IOs to the second DPA if the IOs are to a second set of offsets.
Claims20
A method, comprising:
- forming a virtualized grid consistency group to replicate a logical unit;
- running a first grid copy on a first data protection appliance (DPA) replicating a first portion of the logical unit;
- running a second grid copy on a second DPA replicating a second portion of the logical unit;
- sending IOs to the first DPA if the IOs are to a first set of offsets;
- and
- sending IOs to the second DPA if the IOs are to a second set of offsets.
3 more elements
An article comprising:
- a non-transitory machine-readable medium that stores executable instructions, the instructions causing a machine to:
- form a virtualized grid consistency group to replicate a logical unit;
- run a first grid copy on a first data protection appliance (DPA) replicating a first portion of the logical unit;
- run a second grid copy on a second DPA replicating a second portion of the logical unit;
- send IOs to the first DPA if the IOs are to a first set of offsets;
- and
- send IOs to the second DPA if the IOs are to a second set of offsets.
4 more elements
An apparatus, comprising:
- circuitry to:
- form a virtualized grid consistency group to replicate a logical unit;
- run a first grid copy on a first data protection appliance (DPA) replicating a first portion of the logical unit;
- wherein the circuitry comprises at least one of a processor, a memory, programmable logic and logic gates;
- run a second grid copy on a second DPA replicating a second portion of the logical unit;
- send IOs to the first DPA if the IOs are to a first set of offsets;
- and
- send IOs to the second DPA if the IOs are to a second set of offsets,
- wherein the circuitry comprises at least one of a processor, a memory, programmable logic or logic gates.
6 more elements
Dependencies are inferred from the claim text.