From mjbaysek at cs.cmu.edu Wed Apr 1 14:43:51 2009 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Wed, 01 Apr 2009 14:43:51 -0400 Subject: [auton-users] System Downtime This Evening Message-ID: <49D3B5E7.7010003@cs.cmu.edu> There will be a brief period of complete system downtime this evening, as I reinstall our primary server, and switch out of failover mode. Please save all work frequently, and do not schedule any new long running jobs until after the switch has been completed. Just prior to the switchover, I will notify everybody by email. The exact time is not known, but expected to be between 5 and 6 pm this evening. -- -- Michael J. Baysek, Systems Analyst Carnegie Mellon University - Auton Lab www.cmu.edu - www.autonlab.org 412-268-8939 From mjbaysek at cs.cmu.edu Wed Apr 1 17:54:56 2009 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Wed, 01 Apr 2009 17:54:56 -0400 Subject: [auton-users] System Downtime This Evening In-Reply-To: <49D3B5E7.7010003@cs.cmu.edu> References: <49D3B5E7.7010003@cs.cmu.edu> Message-ID: <49D3E2B0.802@cs.cmu.edu> The switchover will commence in about 10 minutes... -- Michael J. Baysek, Systems Analyst Carnegie Mellon University - Auton Lab www.cmu.edu - www.autonlab.org 412-268-8939 Michael J. Baysek wrote, On 04/01/2009 02:43 PM: > There will be a brief period of complete system downtime this evening, > as I reinstall our primary server, and switch out of failover mode. > > Please save all work frequently, and do not schedule any new long > running jobs until after the switch has been completed. > > Just prior to the switchover, I will notify everybody by email. The > exact time is not known, but expected to be between 5 and 6 pm this > evening. > > > > From mjbaysek at cs.cmu.edu Wed Apr 1 19:23:53 2009 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Wed, 01 Apr 2009 19:23:53 -0400 Subject: [auton-users] System back up Message-ID: <49D3F789.5090900@cs.cmu.edu> Hi everyone. The system and all services are back up and running. From mjbaysek at cs.cmu.edu Wed Apr 8 17:32:35 2009 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Wed, 08 Apr 2009 17:32:35 -0400 Subject: [auton-users] More machines available Message-ID: <49DD17F3.9050504@cs.cmu.edu> Hi Lab, I notice there is a lot of usage on the lab compute machines. I have just freed some expired reservations, so there are 4 additional machines available. -- -- Michael J. Baysek, Systems Analyst Carnegie Mellon University - Auton Lab www.cmu.edu - www.autonlab.org 412-268-8939 From mjbaysek at cs.cmu.edu Sun Apr 12 11:11:52 2009 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Sun, 12 Apr 2009 11:11:52 -0400 Subject: [auton-users] /mnt/userdirs Partition Full: Cleanup Request Message-ID: <49E204B8.3040306@cs.cmu.edu> Hi Lab. The 700 GB /mnt/userdirs partition was filled up completely yesterday. Some cleanup has been done to free around 12 GB. I am asking you to perform any cleanup possible on your directories there. -Mike From mjbaysek at cs.cmu.edu Sun Apr 12 11:17:08 2009 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Sun, 12 Apr 2009 11:17:08 -0400 Subject: [auton-users] /mnt/userdirs Reminder Message-ID: <49E205F4.6080801@cs.cmu.edu> There are two situations you should prefer the userdirs partition to BigPapa. 1) High performance storage. Reading and writing many files, or very large files, as in the case of text processing, userdirs should be used because the performance is much faster than BigPapa. 2) Large amount of storage. Or temporary shared [shared among LOPs] storage. Also, there are compelling reasons not to store "vital" data in the userdirs partition. 1) The no-quota nature of this partition lets you write more data than you could to your BigPapa home directory. This sounds great, but keep in mind, so can everyone else. This means that other people's activity does have a greater chance of affecting you on the userdirs partition than it does on BigPapa. 2) It higher chance for downtime and data loss than BigPapa. The userdirs partition was put into service an ad-hoc solution to supply much needed disk space. It does not have the fault tolerance that BigPapa has. You should be reminded of this when you consider storing mission critical data there.