We are moving from Development to Production. Can you please specify what
are the recommended kernel versions to run on 32bit system with 32GB+
memory.
Would you recommend a PAE Kernel on GFS cluster?
Would you recommend 64bit over 32bit version, if so why?
Our Experience so far:
1) We have new HP Proliant 385 servers with 32bit RHEL5 where non PAE kernel
sees all the memory (32GB).
2) In our test environment recent update to kernel 2.6.18-128.4.1.el5 we
were unable to register all the memory and PAE kernel gave us problems when
mounting GFS.
[r...@dev02 log]# dmidecode | grep -i "Range Size" ; uname -a; free -m
Range Size: 12 GB
Range Size: 3932161 kB
Range Size: 3932161 kB
Range Size: 4 GB
Range Size: 4 GB
Range Size: 4 GB
Range Size: 4 GB
Range Size: 1 kB
Range Size: 1 kB
Linux dev02.foo.com 2.6.18-128.4.1.el5 #1 SMP Thu Jul 23 19:59:17 EDT 2009
i686 i686 i386 GNU/Linux
total used free shared buffers cached
Mem: 3674 3534 140 0 229 2818
-/+ buffers/cache: 486 3188
Swap: 12286 0 12285
[r...@dev02 log]#
--
Alan A.
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