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Listing 3: Installing ganglia-gmond into the Master Node
[root@test1 RPMS]# yum install ganglia-gmond-3.4.0-1.el6.i686.rpm
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror ...
Listing 3 for Warewulf – Part 4
... Listing 3 ... Listing 3: Warewulf – Part 4
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lvm2 --- <232.89g <232.89g
/dev/sdb lvm2 --- <6.37t <6.37t
Next, I add both volumes into a new volume group labeled vg-cache,
$ sudo vgcreate vg-cache /dev/nvme0n1 /dev
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, with the use of chkconfig, that ganglia always starts when the master node boots:
[root@test1 ganglia]# chkconfig --list | more
NetworkManager 0:off 1:off 2:on 3:on 4:on 5:on 6:off
acpid
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version (currently version 6.3). Default values are used for all other parameters. In the os section, you can use password to specify the desired root password (by default, it is boxgrinder).
The hardware
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.snap
s ntestvm1.img 5 8.0 GB 292 MB 2.4 GB 2014-03-01 11:42 982a3a 2 mar.snap
s ntestvm1.img 6 8.0 GB 128 MB 2.6 GB 2014-03-10 19:48 982a3b 2 mar2.snap
ntestvm1.img 0 8.0 GB
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11.04.2016
(512 MB) copied, 49.1424 s, 10.4 MB/s
If you want to empty the read and write cache for benchmark purposes, you can do so using:
sync; echo 3 > /proc/sys/vm/drop_caches
Sequential access
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volume "/dev/sdb" successfully created.
Then, I verify that the volumes have been appropriately labeled:
$ sudo pvs
PV VG Fmt Attr PSize PFree
/dev/nvme0n1 lvm2 --- <232.89g <232.89g
/dev/sdb lvm2 --- <6
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] [raid6] [raid5] [raid4] [raid10]
md0 : active raid5 sdd1[5] sde1[4] sdc1[2] sdb1[1] nvme0n1p1[0](J)
20508171264 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [UU
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Viewing Server Topology
01 # numactl --hardware
available: 8 nodes (0-7)
node 0 cpus: 0 1 2 3 4 5 6 7 8 9
node 0 size: 16373 MB
node 0 free: 15837 MB
node 1 cpus: 10 11 12 13 14 15 16 17 18 19
node 1
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Dell Precision Workstation T7910
Power
1,300W
CPU
2x Intel Xeon Gold E5-2699 V4, 22 cores, 2.4GHz, 55MB of cache, LGA 2011-3
GPU, NPU
n/a*
Memory
