Category Archives: Linux

Fighting Multipath

2013-11-19 08:44:59 [root@chevelle ~]# cat /etc/multipath/bindings # Multipath bindings, Version : 1.0 # NOTE: this file is automatically maintained by the multipath program. # You should not need to edit this file in normal circumstances. # # Format: # alias … Continue reading

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Upgrading ISC Bind and DHCP

Our secondary DNS and DHCP server died last Sunday. Besides some people noticing some services were slower on the network it was a non-event, and that is a good thing. Rather than just doing a restore of the old server, … Continue reading

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Storage Pod

At the Circus we just built our first Backblaze storage pod and I would like to take the time to document it. We rebuilt the server a number of times for testing and verification with different numbers of disks so … Continue reading

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Does Google Hurt Efficiency?

The other night we were doing a hardware upgrade on a cluster and testing. We were working with the command clusvcadm to relocate a service from one host in the cluster to another but the originating server kept getting power … Continue reading

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Mac OSX TFTP Server

At the Circus we have a network management server that runs all of the normal services needed to manage a small network and so I rarely need to fire up the tftp server on my laptop. Today was one of … Continue reading

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DRBD and Heartbeat

2011-06-01 10:31:23 DRBD and Heartbeat I spent a considerable amount of time over the last couple of days working with DRBD and Heartbeat. Below are the links I used to get things running: http://wiki.centos.org/HowTos/Ha-Drbd http://www.howtoforge.com/vm_replication_failover_vmware_debian_etch_p3 http://www.clusterlabs.org/doc/en-US/Pacemaker/1.1/html/Clusters_from_Scratch/s-intro-pacemaker.html http://www.drbd.org/users-guide/s-heartbeat-r1.html http://www.drbd.org/users-guide/s-heartbeat-config.html http://www.drbd.org/users-guide/s-heartbeat-crm.html Part … Continue reading

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Veritas/Symantec Baremetal Restore

I spent a considerable amount of time over the last couple of months testing different restore processes. This is my documentation for restoring Veritas/Symantec backups to a Linux server. The general outline is this: 1. Create a LiveUSB drive to … Continue reading

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