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In support of an on demand operating environment, IBM offers Entry Workload License Charges (EWLC) for IBM System z10 Business Class (z10 BC), IBM System z9 Business Class (z9 BC), IBM eServer zSeries z890 and z800 customers. EWLC enables qualifying customers to pay for sub-capacity eligible IBM software based on the utilization of the LPAR or LPARs where that product executes. This sub-capacity pricing provides the potential to lower software charges on a standalone z10 BC, z9 BC, z890 or z800.
EWLC compared to WLC
EWLC and Workload License Charges (WLC) are two Sub-Capacity capable monthly license charge pricing metrics from IBM. EWLC is similar to Sub-Capacity WLC, in terms of implementation and mechanics. Both pricing metrics offer LPAR-based pricing for sub-capacity eligible software products, based on the highest rolling 4-hour average utilization of the LPAR or LPARs where the eligible product executes.
Both EWLC and WLC may also be implemented at full-capacity (based on the MSU rating of the machine), rather than sub-capacity. Sub-Capacity pricing, for either EWLC or WLC, requires the customers fully migrate all OS/390 to z/OS in 64-bit mode, discontinue their OS/390 licenses and to utilize the Sub-Capacity Reporting Tool to generate Sub-Capacity Reports. These Sub-Capacity Reports must be generated and sent via e-mail to IBM each month.
EWLC on z800 Standalone
z800 standalone customers may choose to adopt EWLC pricing. The other option for z800 standalone customers is zSeries Entry License Charges (zELC).If they choose to adopt the EWLC pricing metric, then all sub-capacity eligible products must be moved to the EWLC pricing metric. The remaining, non-sub-capacity eligible products will be priced using zSeries Entry License Charge (zELC) pricing. To qualify for EWLC, a z800 machine must have a z/OS license.
EWLC and TWLC on z10 BC, z9 BC and z890 Standalone
z10 BC, z9 BC and z890 standalone customers will have EWLC pricing. All sub-capacity eligible products will be priced using the EWLC pricing metric. The remaining, non-sub-capacity eligible products will be priced using the Tiered EWLC (TWLC) price structure. The TWLC price structure, for non-subcapacity products offers flat pricing based on z10 BC, z9 BC and z890 server capacity using a tiered structure. The TWLC price structure is exclusive to the z10 BC, z9 BC and z890 servers. Note: the smallest z10 BC and z9 BC, capacity setting A01, and the smallest z890, capacity setting 110, are priced using zELC.
z10 BC, z9 BC, z890 or z800 Servers in a Qualified Parallel Sysplex
Customers operating a z10 BC, z9 BC, z890 or a z800 in a qualified Parallel Sysplex may elect to have their server priced as a stand-alone machine (zELC, EWLC and TWLC) or may elect aggregated PSLC or aggregated WLC pricing, subject to applicable terms and conditions. If the customer selects aggregated pricing then zELC, EWLC and TWLC price structures do not apply. While EWLC is MSU-based, aggregation of MSUs is not permitted if EWLC is selected.
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