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Intelligent Resource Director

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IRD's objective is to optimise the use of computing resources while enabling WLM to meet its workload goals. So, for example, IRD will not vary offline logical processors to the point where doing so would cause workloads to miss their goals.
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Weight Management - where IRD dynamically redistributes LPAR weights between members of an LPAR Cluster. (An LPAR Cluster is the set of members of a
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footprint.) The total of the weights for the LPAR Cluster remains constant as weights are shifted between the members. (
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Management - where logical channel paths are moved between members of an LPAR Cluster.
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Frank Kyne et al., z/OS Intelligent Resource Director, IBM Redbook, SG24-5952
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processors on- and off-line. (This does not apply to
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Logical CP Management - where IRD dynamically varies
103:LPARs can also participate in Weight Management.) 152: 38:) is software that automates the management of 49:IRD is implemented as a collaboration between 153: 53:(WLM), a component of z/OS, and the 13: 14: 177: 139: 161:IBM mainframe operating systems 1: 129: 32:Intelligent Resource Director 7: 117: 10: 182: 146:Official z/OS WLM Homepage 72:Major IRD functions are: 166:IBM mainframe technology 57:Logical Partitioning ( 42:resources and certain 16:Component of IBM z/OS 65:, a function of the 173: 124:Workload Manager 93:Parallel Sysplex 51:Workload Manager 28:operating system 181: 180: 176: 175: 174: 172: 171: 170: 151: 150: 142: 132: 120: 17: 12: 11: 5: 179: 169: 168: 163: 149: 148: 141: 140:External links 138: 137: 136: 131: 128: 127: 126: 119: 116: 111: 110: 104: 101:Linux on IBM Z 89: 21:IBM mainframes 15: 9: 6: 4: 3: 2: 178: 167: 164: 162: 159: 158: 156: 147: 144: 143: 134: 133: 125: 122: 121: 115: 108: 105: 102: 98: 94: 90: 87: 83: 79: 75: 74: 73: 70: 68: 64: 60: 56: 52: 47: 45: 41: 37: 33: 29: 26: 22: 112: 95:on a single 77: 71: 48: 35: 31: 23:running the 18: 46:resources. 155:Categories 130:Literature 69:hardware. 63:hypervisor 97:mainframe 67:mainframe 118:See also 78:logical 107:CHPID 86:zAAPs 82:zIIPs 55:PR/SM 59:LPAR 25:z/OS 84:or 44:I/O 40:CPU 36:IRD 19:On 157:: 88:.) 61:) 30:, 34:(

Index

IBM mainframes
z/OS
operating system
CPU
I/O
Workload Manager
PR/SM
LPAR
hypervisor
mainframe
zIIPs
zAAPs
Parallel Sysplex
mainframe
Linux on IBM Z
CHPID
Workload Manager
Official z/OS WLM Homepage
Categories
IBM mainframe operating systems
IBM mainframe technology

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