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Proxmox clustering and multicast (also, DNS)

After much problems with getting a new Proxmox cluster up and running two things have helped:

Putting the SAN IP addresses in the hosts file, avoiding DNS dependancies (especially when one of the systems isn’t in there yet…). This put me on track: http://blog.rhavenindustrys.com/2013/04/curious-proxmox-clustering-fix.html

Important bit:

127.0.0.1 localhost.localdomain localhost
169.254.0.1 proxmox1.local proxmox1 pvelocalhost
169.254.0.2 proxmox2.local proxmox2

10.10.5.101 proxmox1.example.com
10.10.5.102 proxmox2.example.com

This associates the short aliases with the network used by corosync, while leaving the long addresses to the outside world.

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Outlook 2010 and .pst files on network shares

What everyone says is true. Don’t do it! 2010 seems to be very sensitive to .pst issues. Best to import old ones.

Configuring Proxmox hosts (and other postfix installs) to send email via smarthost V2

In this post suggested using the Satellite system option. However, this seems to do the same as the mail sent by smarthost; no local mail option in exim – i.e. even local mail to root tries to go via the smarthost, which then complains. The Internet with smarthost option is probably the better choice (equivalent to exim’s mail sent by smarthost; received via SMTP or fetchmail).

N.B. Normal proxmox setup seems to be for postfix to use /etc/aliases directly. Double check this file!

Dell OMSA install on Server 2012 R2 issues

Windows Server 2012 R2 install on Dell R520 - boot order issue

Installing Windows Server 2012 R2 on a Dell PowerEdge R520. Initially had problems with the “We couldn’t create a new partition or locate an existing one” error. Fixed by going into the bios and changing the boot order so that the internal SD card module came second rather than first (which was needed to make it boot from the SD cards).