main storage & pool sizes

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DataCenter
Hi Installing a new I5 system (I520) with V5R4M00, I find that the sum of all active pools is about 5.5 GB, While the machine main storage is 6 GB. Where is the missing half GB ???
ASKED: January 6, 2007  11:55 PM
UPDATED: January 10, 2007  8:11 AM

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This is hard to answer from a removed distance. I kind of doubt that anything has been lost. Can you give us a snap shot of the Wrksyssts with a view of the memory? Sometimes it just doesn’t look like it adds up or maybe you have set aside memory for a pool you are not using. I haven’t set up a new system with 5.4 but I have upgraded 2 systems to 5.4 and I have not seen this. In the old days 5.2 and before the excess memory always went to the Base pool and it was semi difficult to make memory unavailable.

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  • Bermanis
    Hi, bellow is a snapshot of "Work with Shared Pools" (all allocated pools at the time snapshot was taken) Notice that Main storage size is 5.6 GB... ------------------------------------------------- Main storage size (M) . : 5656.76 Type changes (if allowed), press Enter. Defined Max Allocated Pool Size (M) Active Size (M) *MACHINE 286.74 +++++ 286.74 *BASE 1128.16 103 1128.16 *INTERACT 210.26 14 210.26 *SPOOL 56.56 14 56.56 *SHRPOOL1 3508.25 15 3508.25 *SHRPOOL9 466.77 45 466.77 ------------------------------------------------------ Whie Displaying Main Storage Information (service tool) we can see 6 GB operational... Opt Location Type Size Resource Name Status 0 313A 512 MS01 Operational 4 313A 512 MS02 Operational 5 313A 512 MS03 Operational 1 313A 512 MS04 Operational 2 313B 1024 MS05 Operational 6 313B 1024 MS06 Operational 3 313B 1024 MS07 Operational 7 313B 1024 MS08 Operational
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  • JDWWms
    Have you checked your LPAR settings on the HMC? The main storag edisplay will always show the total memory installed on the system but the memory maynot be assigned to the LPAR. Also the Hypervisor does take some memory but it should be the 256-512k range.
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  • Bermanis
    Hi Checking the LPAR on SST I got this picture: Display Partition Configuration Partition identifier and name . . . . . . . : 1 Number of partition processors . . . . . . . : 1 Minimum / maximum number of processors . . . : 1/1 Use shared processor pool . . . . . . . . . : No Size of partition memory (MB) . . . . . . . : 5696 Minimum / maximum size of memory (MB) . . . : 160/6144 Enable workload management . . . . . . . . . : No ... Now I can see where is the missng half GB Is it possible to chang partition size to be maximum size ?
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  • JDWWms
    If it is a single partition system then you shoul put the all of the memory in the Maximum filed but the hypervisor is still going to take a block so you'll never see it all.
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