PE 1950 CentOS 5 Missing memory?

[Linux PowerEdge]

Marc,

It sounds like you may have one of the memory "raid" configurations
enabled in the system's BIOS.
You should check the bios configuration for memory sparing, or memory
raid, or redundant memory, or memory mirroring (although not expecting
this since you see 12 of 16 instead of 8 of 16) but you get the idea.
 ;-)

It should be under the 'memory information' option, i believe.


On Fri, Jul 4, 2008 at 12:12 PM, Marc Wiatrowski <mwia at iglass.net> wrote:
> I've got a PE 1950 running 32bit CentOS 5, PAE kernel with 8 2G sticks.   I
> should see 16G
> right?  Or at least close to it?
>
> Unless I am missing something (which could be) all I see is 12G?
>
> I'm assuming from the omreport the bios sees the 16G but isn't letting the
> OS have it?
>
> I saw the post/replies on Jared's missing memory issue last month, but I'm
> not running the 64bit OS
> nor anything xen...
>
> thanks,
> marc
>
> uname -rv
> 2.6.18-92.el5PAE #1 SMP Tue Jun 10 19:22:41 EDT 2008
>
> omreport system summary:
> Memory
> Total Installed Capacity   : 16384 MB
> Memory Available to the OS : 12176 MB
> Total Maximum Capacity     : 32768 MB
> Memory Array Count         : 1
>
> Memory Array 1
> Location                   : System Board or Motherboard
> Use                        : System Memory
> Installed Capacity         : 16384 MB
> Maximum Capacity           : 32768 MB
> Slots Available            : 8
> Slots Used                 : 8
> ECC Type                   : Multibit ECC
>
>
> trimmed dmidecode:
> BIOS Information
>         Vendor: Dell Inc.
>         Version: 2.0.1
>         Release Date: 10/27/2007
> System Information
>         Manufacturer: Dell Inc.
>         Product Name: PowerEdge 1950
> Processor Information
>         Socket Designation: CPU1
>         Family: Xeon
>         Manufacturer: Intel
>         Flags:
>                 PAE (Physical address extension)
> Processor Information
>         Socket Designation: CPU2
>         Family: Xeon
>         Manufacturer: Intel
>         Flags:
>                 PAE (Physical address extension)
>
> Physical Memory Array
>         Maximum Capacity: 32 GB
>         Number Of Devices: 8
>
> Memory Device
>         Size: 2048 MB
>         Locator: DIMM1
> Memory Device
>         Size: 2048 MB
>         Locator: DIMM2
> Memory Device
>         Size: 2048 MB
>         Locator: DIMM3
> Memory Device
>         Size: 2048 MB
>         Locator: DIMM4
> Memory Device
>         Size: 2048 MB
>         Locator: DIMM5
> Memory Device
>         Size: 2048 MB
>         Locator: DIMM6
> Memory Device
>         Size: 2048 MB
>         Locator: DIMM7
> Memory Device
>         Size: 2048 MB
>         Locator: DIMM8
>
> top:
> Mem:  12468388k total,  3911928k used,  8556460k free,   308576k buffers
>
> /proc/meminfo:
> MemTotal:     12468388 kB
> MemFree:       8559312 kB
> Buffers:        308576 kB
> Cached:        3016624 kB
> SwapCached:          0 kB
> Active:        3490800 kB
> Inactive:       268068 kB
> HighTotal:    11660608 kB
> HighFree:      8160420 kB
> LowTotal:       807780 kB
> LowFree:        398892 kB
> SwapTotal:     8388592 kB
> SwapFree:      8388592 kB
> Dirty:            2016 kB
> Writeback:           0 kB
> AnonPages:      433724 kB
> Mapped:         154076 kB
> Slab:            95488 kB
> PageTables:      39796 kB
> NFS_Unstable:        0 kB
> Bounce:              0 kB
> CommitLimit:  14622784 kB
> Committed_AS:  1042420 kB
> VmallocTotal:   116728 kB
> VmallocUsed:      8008 kB
> VmallocChunk:   108408 kB
> HugePages_Total:     0
> HugePages_Free:      0
> HugePages_Rsvd:      0
> Hugepagesize:     2048 kB
>
>
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