Storage unit, installation method thereof and installation program therefore
First Claim
1. A storage unit installation method for newly installing a second storage unit having one or more storage devices into a computer system comprising a first storage unit having one or more storage devices and a host computer accessing said first storage unit, wherein:
- said second storage unit is connected with said host computer and said first storage unit in such a way that input and output of information are possible;
access right setting of said first storage unit is changed such that the second storage unit can access the first storage unit;
a logical device (hereinafter, referred to as a first logical device) relating to said one or more storage devices of the first storage unit is assigned to a logical device (hereinafter, referred to as a second logical device) of the second storage unit;
path definition with respect to said second logical device and device recognition in said host computer are performed such that the host computer can access the second logical device of the second storage unit; and
input-output setting of said host computer is changed such that said second storage unit is requested to processing of input-output from said host computer to said one or more storage devices of said first storage unit.
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Accused Products
Abstract
A new storage unit is installed such that installation costs are suppressed and functions of the new storage unit can be utilized sufficiently. An access right is changed such that the new storage unit (second storage unit) can access an existing first storage unit (S502). A logical device relating to a storage device of the first storage unit is assigned to a logical device of the second storage unit (S503). Path definition and device recognition in a host computer are performed such that the host computer can access the assigned logical device of the second storage unit (S504, 505). Input-output setting of the host computer is changed such that processing of an input-output from the host computer to the device of the first storage unit is requested to the second storage unit (S506).
54 Citations
1 Claim
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1. A storage unit installation method for newly installing a second storage unit having one or more storage devices into a computer system comprising a first storage unit having one or more storage devices and a host computer accessing said first storage unit, wherein:
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said second storage unit is connected with said host computer and said first storage unit in such a way that input and output of information are possible;
access right setting of said first storage unit is changed such that the second storage unit can access the first storage unit;
a logical device (hereinafter, referred to as a first logical device) relating to said one or more storage devices of the first storage unit is assigned to a logical device (hereinafter, referred to as a second logical device) of the second storage unit;
path definition with respect to said second logical device and device recognition in said host computer are performed such that the host computer can access the second logical device of the second storage unit; and
input-output setting of said host computer is changed such that said second storage unit is requested to processing of input-output from said host computer to said one or more storage devices of said first storage unit.
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Specification