[Linux-cluster] Did you use GFS with witch technology?
Andrew A. Neuschwander
andrew at ntsg.umt.edu
Tue Jun 30 18:26:14 UTC 2009
The tick divider first showed up in RHEL 5.1. It is a kernel command
line option. Search for 'divider' in the release notes
Multicast works fine for me. I have 4 virtual and 1 physical members in
my gfs cluster. The VMs are split onto two ESX nodes (along with 20+
other VMs). The physical/virtual ethernet switching works fine. But I
did make sure the GFS VMs are using the vmxnet driver, as it has a lower
latency than the other virtual nic driver. My gfs volumes consist of
about 14TB of 4Gbps FC SAN LUNS.
Andrew A. Neuschwander, RHCE
College of Forestry and Conservation
The University of Montana
andrew at ntsg.umt.edu - 406.243.6310
Tiago Cruz wrote:
> Hello Andrew! Many thanks for your reply!
> It's very good to see an environment like my!
> I'm using RHEL 5.2 with kernel-2.6.18-92.1.22.el5... can you explain a
> little bit around this trick divider?
> I'm usually have 2-3 IBM x3850 (16 cores CPU and 128 GB RAM) with 10-15
> virtual machines running under GFS, with a LUN ~500 GB SAN.
> My problem happens when Multicast:
> Switch -> GFS -> Switch = OK
> vSwitch (Box_A) -> Switch-> vSwitch (Box_B) = NOK
> Did you have some problem with? If I put all VMs inside the same box
> (vSwitch Box_A -> vSwitch Box_A) I don't have any problem...
> Thanks a lot!
More information about the Linux-cluster