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LUDD AFS Home Directory Migration

published 23/10-19 by armedguy

Tomorrow (24th of Oct, 2019) we will start migrating user directories from AFS to GlusterFS.

This is being done for multiple reasons, including incompatiblity with our thin client cluster, performance, manageability, to name a few.

The main noticable change will be the home directory prefix going from /afs/ludd.ltu.se/users to /gfs/users. Please make sure to update any scripts that use the full path as the old one will go read only when we migrate.

Some mails might take a bit longer to arrive when your account is being migrated, this is due to us pausing deliveries to ensure consistent state of mail directories.

Please report any issues you might encounter that could be related to the migration to the administrators e.g. via telegram.

LUDD Downtime 23/6 - 1/7

published 30/05-19 by armedguy

On the evening of 23rd of June, ALL LUDD services will be shut down for power maintenance as well as maintenance of OpenStack and member services. This includes all LUDD services, LUDD DUSTcloud services, LUDD DUST HPC services, as well as virtual and physical LCNet offerings.

Mail services will also be down, so the primary point of contact with LUDD administrators will be via #ludd @ irc.freenode.net or LUDD:s Telegram channel. Any questions prior to the downtime, or if you are interested to help or curious about what will be done, contact us.

We reserve for all services to be down until the 1st of July, but hopefully they will be restored as soon as possible.

LUDD Downtime 25/3

published 21/03-19 by armedguy

On the 25th of March, all systems and networks on LUDD and LCnet will be down during the whole day. This downtime might extend to the 26th as well.

Systems will be shut down on the 24th at 23:00. (LCNet users, please shut down beforehand, as we will only cut the power to the racks).

LUDD DUSTcloud services will also be down during this time, including all users machines.

The reason is due to electrical work in the datacenter.

Intressekoll CCLan 2019

published 29/10-18 by augeri

NOTE: This is an old migrated article. Information here may not be relevant and is only here for reference.

Vi på LUDD tänker hålla i ett större LAN efter jul och behöver lite feedback på vad folk är intresserade av för spel till turneringar och dylikt. Om du är intresserad av ett sådant evenemang uppskattas det stort om du svarar på vår enkät nedan.

https://goo.gl/forms/GCCeE2BdpvOks9t72

Det finns även möjlighet för den som är intresserad att vara medverkande och hjälpa till att anordna LAN:et och därigenom få gratis inträde plus lite annat.

LUDDs Privacy Policy

published 24/05-18 by board

NOTE: This is an old migrated article. Information here may not be relevant and is only here for reference.

We assume you've heard about EU:s new GDPR initiative. The rules state that we have to give you clear informtaion about how we store and use your data. We at LUDD have therefore set up a Privacy Policy showing what data we store, how we store it and your options when you want to change your data.

The Privacy policy can be found at: http://ludd.se/privacy

Nothing has really changed regarding your data. But now we have everything in writing.

So here is the last bullet for GDPR!

New Member Servers

published 09/01-18 by armedguy

NOTE: This is an old migrated article. Information here may not be relevant and is only here for reference.

We have finally migrated our first service over to the new compute cluster, and decided that physical member servers would be step one.

This means that our old (not very old though) member server discovery.ludd.ltu.se will be discontinued. It also means that if you were using taurus.ludd.ltu.se, luminous.ludd.ltu.se, or any of our other servers, they are gone too.

Our 4 new servers are as follows:

sarek.ludd.ltu.se
abisko.ludd.ltu.se
muddus.ludd.ltu.se
padjelanta.ludd.ltu.se

Each server has the following specs: 2x Intel(R) Xeon(R) CPU E5-2678 v3 @ 2.50GHz, 12-core CPUs totalling 48 threads 64GB DDR3 RAM @ 1800MHz

These servers are ThinLinc-enabled, which means you can download the ThinLinc client and access your desktop from anywhere. https://www.cendio.com/thinlinc/download

To use the servers with ThinLinc, please connect ThinLinc to echo.ludd.ltu.se, which serves as the master server (not a member server). Session life is set to never expire, so you can always disconnect from a session and come back later.

For people using best.ludd.ltu.se:
best will be updated to point to the new member servers in a while. Please remember that load balancing on best is done purely by round-robin DNS, so there is no guarantee that best will actually give you the best server, or any working server at all for that matter.

If you have any issues with the servers, please contact the administrators.

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