HPE 9000 and HPE e3000 Servers
cancel
Showing results for 
Search instead for 
Did you mean: 

Memory: Single-Bit Error

 
SOLVED
Go to solution
rodh_z
Advisor

Memory: Single-Bit Error

Im getting Single-Bit Error from my N4000 server, kindly refer to the attached file.

Thnks Experts.

WARNING: Current loading of DIMMs failed the distribution check. This means the memory subsystem may not operate at optimal performance levels. To correct, refer to DIMM loading rules and re-distribute DIMMs.

7 REPLIES 7
Jeff Schussele
Honored Contributor
Solution

Re: Memory: Single-Bit Error

Hi,

You need the 1024 DIMMs in *all* the 0 EXTs
So swap 1a/1b EXT0 with 0a/0b EXT2.
And you should probably move 3a/3b EXT2 up to 3a/3b EXT0

Single bit errors are not a problem unless the happen constantly or you start getting near the PDT (Page Deallocation Table) limit which is normally 50 entries

HTH,
Jeff
PERSEVERANCE -- Remember, whatever does not kill you only makes you stronger!
HGN
Honored Contributor

Re: Memory: Single-Bit Error

Hi

I would also run this past HP to get their recommendations on this.

Rgds

HGN
rodh_z
Advisor

Re: Memory: Single-Bit Error

This is swapinfo output.

# swapinfo -tam
Mb Mb Mb PCT START/ Mb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 4296 4209 87 98% 0 - 1 /dev/vg00/lv_swap1
dev 10240 5063 5177 49% 0 - 1 /dev/vg01/lv_swap2
reserve - 5263 -5263
memory 11225 4538 6687 40%
total 25761 19073 6688 74% - 0 -
rodh_z
Advisor

Re: Memory: Single-Bit Error

This is swapinfo output.

# swapinfo -tam
pls see attachement.
Jeff Schussele
Honored Contributor

Re: Memory: Single-Bit Error

swapinfo????
Please explain why this is important.
Your problem is founded in how you have the DIMMS populated.
HP likes the largest DIMMS in the lowest slots & no "holes" in the addresses.

Rgds,
Jeff
PERSEVERANCE -- Remember, whatever does not kill you only makes you stronger!
rodh_z
Advisor

Re: Memory: Single-Bit Error

Do u hav any idea why is that dev memory utilization was 98% ? Is that related to that problem single bit error?

thnks
Rodh_z
Jeff Schussele
Honored Contributor

Re: Memory: Single-Bit Error

Only in that the system cannot use the memory optimally - performance-wise.
If it's that high & stays there then you need *more* memory.

Rgds,
Jeff
PERSEVERANCE -- Remember, whatever does not kill you only makes you stronger!