Hello
We're running a 2 node rhas4 cluster with gfs and fibre attached storage
At the moment we have a pair of bonded 10/100 nics for heartbeat and gfs
locking communication (bonded in active/standby mode)
There are an additional pair of gigabit nics bonded for general network
traffic
We've been having some performance issues with GFS which have been
investigating - mainly to do with slow file stat operations like find,
and ls.
a comparison of a data set (700,000 files in a single directory) on gfs
and then on ext3 is below
# GFS
[root@mrapp1 ~]# time ls /free0/partnerimport/data/soap-2/ >/dev/null
real 17m10.035s
user 0m8.220s
sys 0m52.310s
# EXT3
[root@mrapp1 ~]# time ls /mr/sig/partnerimport/data/soap-2 > /dev/null
real 0m59.854s
user 0m5.296s
sys 0m0.662s
Can anyone confirm whether using a 10/100 nic for heartbeat would be
having an impact on performance , and whether it would be advisable to
ensure these are gigabit?
Many thanks
Dave
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