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Anonymous_User Absent Member.
Absent Member.
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Sentinel install issues 96Gb RAM


Hi,

I'm trying to install Sentinel 7.3.1 (upgrade pack) directly on a clean
build of RHEL 6.6 with 96GB ram. Unfortunately Sentinel is only
registering 967mb of RAM and throwing an error saying it don't meet
minimum of 2048mb of RAM.

Anyone seen this before - can we check how Sentinel calculates free
RAM?


Regards,
Pras


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pimpalp
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6 Replies
Knowledge Partner
Knowledge Partner

Re: Sentinel install issues 96Gb RAM

Could you post the actual output? I'd guess that the logic is in the
'precheck' script, but seeing that with 'baseh -xv' would be nice.

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Knowledge Partner
Knowledge Partner

Re: Sentinel install issues 96Gb RAM

It may also be useful to find what you get from this command on your server:


free -b | awk '/Mem:/{ print $2 }'


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Anonymous_User Absent Member.
Absent Member.

Re: Sentinel install issues 96Gb RAM


Thanks, the command "free -b | awk '/Mem:/{ print $2 }'" returns a value
of 1014276546 bytes - this when converted is indeed 967mb.

However the issue is getting a value in bytes... If I run free -m or
free -g, I get the correct value. Running free -b is when the issue
happens. Below are some examples:


Free –b output:
Total Used
Free
Mem: 1014276546 1215647744
1002120069

Free –m output:
Total Used
Free
Mem: 96728 1159
95569

Free –g output:
Total Used
Free
Mem: 94 1
93


Anyone seen this or any way I can trick Sentinel to use megabytes to
calculate rather than bytes?


Regards,
Pras


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Knowledge Partner
Knowledge Partner

Re: Sentinel install issues 96Gb RAM

If your server is reporting 100 MB of RAM, you likely have a problem you
need to resolve before Sentinel gets anywhere near it. The 'free' command
is pretty basic and I would think it should work in this situation like
others.

If you really want to hack the script, you can probably modify the
'precheck' file under the installation's 'bin' directory to work around
this, but I'd be hesitant to do so as having a command like 'free' behave
that peculiarly would make me seriously question what else may be amiss.

It may be useful to probe the system in some other ways, for example:


cat /proc/meminfo
df -h #focus on /dev/shm



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Knowledge Partner
Knowledge Partner

Re: Sentinel install issues 96Gb RAM

If you are super-duper sure that your box has enough RAM, you could trick
precheck into working via something like this:

Replace line 124 with something that statically sets the detected memory
amount to something bigger:

TOTAL_RAM=$((96*1024*1024*1024)); #96 GiB

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Anonymous_User Absent Member.
Absent Member.

Re: Sentinel install issues 96Gb RAM


thanks - this has done it.


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