MPE/iX Release 6.5 Supports >3.75 GBs of Memory
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Hewlett-Packard With the March 2000 shipment of MPE/iX Release 6.5, HP e3000 Servers now support greater than 3.75 GBs of main memory. This is good news for many applications for which memory sizes limited the number of users that could be supported or for which had the application's performance was limited by the 3.75 GB maximum memory size. However, since the MPE/iX Release 6.5 Communicator only indicates that "some" HP e3000 Servers will benefit form this increase, clarifications need to be given as to which HP e3000 Servers will actually benefit from this maximum memory size increase. HP e3000 Ordering Menus for adding HP e3000 memory used by HP sales people and by HP e3000 Authorized Resellers already note these limitations. Only HP e3000 Servers that use the PA8000 or PA8200 processor chips (the PA-RISC 64 bit chips) with MPE/iX Release 6.5 will be able to use memory sizes greater than 3.75 GBs. This includes a number of 9x9KS Servers (the 929KS/030, 939KS/030, 979KS, 989KS/x00 and 989KS/x50 Servers) and the 997 Servers. A number of HP e3000 Servers based on PA7xxx processor chips (the PA-RISC 32 bit chips) can still use Release 6.5 and many of its added new features (e.g. WebServer software, file sizes up to 128 GBs, up to 511 disk spindles, etc.). However these PA7xxx processor based servers will not be able to support memory sizes greater than 3.75 GBs. These include the 9x7, 9x8, 939KS, 929KS/020, 939KS/020, 959KS, 969KS/x00, 969KS/x20, 992/990, 995/991 and 996 Servers. For those HP e3000 9x9KS Servers that do support greater than 3.75 GB of memory, the upper limit is now 8 GB with MPE/iX Release 6.5. To achieve these large memory sizes, customers should consider using the 9x9KS 512 MB memory modules, which can be intermixed with the smaller 9x9KS memory modules. For the HP e3000 997 Servers, the upper limit is now 16 GB with MPE/iX Release 6.5. To achieve these large memory sizes, customers should consider using one or two 8 GB memory carrier cards. This 8 GB memory carrier card can support from one to eight 1 GB memory modules. The 8 GB memory carrier card can be field installed and can be intermixed with the 128 MB (not actively sold), 256 MB, 512 MB and 768 MB HP e3000 997 memory array boards. However, since there are a limited number of slots for plugging memory into the 997 Server, some smaller memory array cards may need to be removed to support large processor and large memory configurations. Previous communications (e.g., the Spring 2000 HP e3000 Advisor) to 99x end-users have noted that sales of some 99x memory products (the 256 MB, 512 MB and 768 MB memory arrays) would be discontinued as of August 1, 2000. HP e3000 997 customers using MPE/iX Release 6.0 Express 1 or 6.5 can continue to purchase the 8 GB memory carrier board and associated 1 GB memory module (although Release 6.0 Express 1 and beyond customers are limited to using only the first 3.75 GB of any loaded memory). So in summary, many HP e3000 applications will see added performance or greater numbers of users using larger memory configurations (please check with your application providers for details). However, greater than 3.75 GB memory configurations are limited to PA8000 and PA8200 based servers (929KS/030, 939KS/030, 979KS, 989KS/x00, 989KS/x50 Servers and the 997 Servers) using MPE/iX Release 6.5.
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