Heute fanden in vielen, vielen Städten weltweit Demos gegen den Klimawandel unter dem Motto #FridaysForFuture statt. Auch in Rostock. Und zwar quasi arbeitnehmerfreundlich um 12 Uhr am Kröpeliner Tor, so daß ich heute einfach ein bißchen die Mittagspause ausdehnte musste,um die vielen Schülerinnen und Schülern zu unterstützen, die ihr Grundrecht auf Demonstrationsfreiheit in Anspruch nahmen.… Continue reading #FridaysForFuture in #Rostock
Too much disk IO on sda in RAID10 setup – part 2
Some days ago I blogged about my issue with one of the disks in my server having a high utilization and latency. There have been several ideas and guesses what the reason might be, but I think I found the root cause today: SMART Self-test log structure revision number 1Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error#… Continue reading Too much disk IO on sda in RAID10 setup – part 2
Too much disk IO on sda in RAID10 setup
I have a RAID10 setup with 4x 2 TB WD Red disks in my server. Although the setup works fairly well and has enough throughput there is one strange issue with that setup: /dev/sda has more utilzation/load than the other 3 disks. See the blue line in the following graph which represents utilization by week… Continue reading Too much disk IO on sda in RAID10 setup
Adding NVMe to Server
My server runs on a RAID10 of 4x WD RAID 2 TB disks. Basically those disks are fast enough to cope with the disk load of the virtual machines (VMs). But since many users moved away from Facebook and Google, my Friendica installation on Nerdica.Net has a growing user count putting a large disk I/O… Continue reading Adding NVMe to Server
Xen & Databases
I’m running PostgreSQL and MySQL on my server that both serve different databases to WordPress, Drupal, Piwigo, Friendica, Mastodon, whatever… In the past the databases where colocated in my mailserver VM whereas the webserver was running on a different VM. Somewhen I moved the databases from domU to dom0, maybe because I thought that the… Continue reading Xen & Databases
#Friendica vs #Hubzilla vs #Mastodon
I’ve been running a #Friendica node for several years now. Some months ago I also started to run a #Hubzilla hub as well. Some days ago I also installed #Mastodon on a virtual machine, because there was so much hype about Mastodon in the last days due to some changes Twitter made in regards of… Continue reading #Friendica vs #Hubzilla vs #Mastodon
#DeleteFacebook and alternative Social Networks
Some weeks ago a more or less large scandal popped up in the media: Cambridge Analytica misused data from Facebook. Many users of Facebook were unhappy about abusing their personal data and deleted their Facebook accounts – or at least tried some alternatives like Friendica, Hubzilla, Diaspora, Mastodon and others. There has been a significant… Continue reading #DeleteFacebook and alternative Social Networks
Politik, Wahlkampf & Grundrechte
Ich halte mich ja seit geraumer Zeit mit Beiträgen hier im Blog zurück. Nicht, weil es nicht notwendig sei, sondern eher im Gegenteil: all die bisherigen Beiträge sind auch weiterhin größtenteils gültig, da sich nichts am zugrundelegenden Problem geändert hat. Doch es ist irgendwie müßig, immer und immer wieder dasselbe schreiben zu müssen. Doch einiges… Continue reading Politik, Wahlkampf & Grundrechte
Upgrade to Debian Stretch – GlusterFS fails to mount
Before I upgrade from Jessie to Stretch everything worked as a charme with glusterfs in Debian. But after I upgraded the first VM to Debian Stretch I discovered that glusterfs-client was unable to mount the storage on Jessie servers. I got this in glusterfs log: [2017-06-24 12:51:53.240389] I [MSGID: 100030] [glusterfsd.c:2454:main] 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs… Continue reading Upgrade to Debian Stretch – GlusterFS fails to mount
Back to the roots: FidoNet – I’m back!
Last month I blogged about Fidonet. This month I can report that I’m back in FidoNet. While I was 2:2449/413 back then, my new node number is now 2:2452/413@fidonet. The old network 2:2449 is still listed in the Fidonet nodelist, but no longer active, but maybe I can revive that network at a later time.… Continue reading Back to the roots: FidoNet – I’m back!