Some OES2 funkyness

Just had some testing of the new and upcoming OES2 release.

Some of the things that I find verrry interesting:

Dynamic Storage Technology (DST) : this is a FUSE based solution which makes it possible to create a sort of shadow volume. You define a rule and all data on your volumes which matches this rule is kept active on your (fast) storage and all other data is moved to other less expensive (slower) storage. To a user it will still appear as if the data is on the original location although it is physically moved to somewhere else.

DHCP+DNS: Finally! the long awaiting feature that was missing in OES1. In the new release it will be possible to have a full directory driven dhcp+dns solution. Therefore the guys at novell made modifications to the dhcp server (commited upstream). For the dns part they already used a modified bind on netware , this version was ported to linux.( these changes are not yet upstream nor open source)

Will add some more things later…

March 29th, 2007 - Posted in Novell | | 0 Comments

Blocking can make you completely cha-cha

Or how a small flag can cost you a lot of time…

Currently I’m writing a perl application with Device::Modem which uses Device::SerialPort.

In the SerialPort.pm code your device is opened with the O_NONBLOCK flag and this was causing some problems when sending a lot of data to the device which is attached with a usb to serial converter.

Simply commenting this flag solved the problem. Too bad this took me half a day

March 7th, 2007 - Posted in linux | | 0 Comments

Todo: test this software

drbd8 is released in january…nothing special you would say but one line in the changelog is very interesting:

* Support for primary/primary (for OCFS2, GFS...)

Full changelog is availble from the drbd website

Other interesting thing that I want to test is SP2 for Groupwise7 which supports running groupwise inside xen.

March 6th, 2007 - Posted in linux | | 0 Comments