I’m running a MongoDB 2.2 cluster in Amazon EC2 consisting of three machines. One of these machines is used to take hourly snapshots with LVM and EBS and I noticed a rare bug which leads to silent data corruption on the restore phase. I’m using Rightscale to configure the machines with my own ServerTemplate, which …
As part of my LifeArchive project, I had to verify that I have sufficient methods to back all my valuable assets so well that they will last for decades. Sadly, there isn’t currently any mass media storage available that is known to function for such a long time, and in any way you must prepare for losing a site due to floods, fire and other disasters. This post explains how I solved my backup needs for my entire digital legacy.
Remember the moments when you, or your parents, found some really old pictures buried deep into some closet and you instantly get a warm and fuzzy feeling of memories? In this modern era of Cloud Services, we’re producing even more personal data which we want to retain. Pictures form your phone and your DSLR camera, documents …
I only recently learn about the HP MicroServer product family. HP has been making these small little servers for a few years and they are really handy and really cheap for their features. I bought a HP MicroServer N40L for just 242 euros.
I have a fairy typical setup where I have nginx in front of haproxy, where nginx is terminating the ssl connections from client browsers. As our product grew, my loadbalancer machines didn’t have enough CPU to do all the required ssl processing. As this zabbix screenshot shows, the nginx takes more and more cpu, until …
If you’re like me, you’ll have a terminal with dozen or so tabs open and you can’t remember which tab was which. The problem is even more annoying when you have some programs running on each tab and you can’t differentiate them. By adding this oneliner to your ~/.bash_profile you can set the title for …
We’re big fans of opensource community here at Applifier. So much, that we believe that opensourcing software components and tools developed in house will result in better quality, increased cost savings and increased productivity. Here’s why:
We finished our climbing trip video to Lofoten, Norway. Check it out at my youtube channel:
http://www.youtube.com/watch?v=PR4w7f3JDbk
Tired of pasting a bunch of lines into your irssi by a right mouse button misclick? Well, no more! Set these two irssi settings and irssi will ask you every time if you try to paste an entire line, or more. /set paste_detect_time 5msecs /set paste_verify_line_count 1 /save And that’s it!
We recently added a bunch of Western Digital 3.0TB Green drives to the enclosure, so that we can run a bunch of tests with this brand. Here’s a quick recap what I had to do to make these new disks online.
I just recently built a storage server based on Solaris OpenIndiana with SuperMicro 45 disk enclosure. The current configuration can host 84 TB of usable disk space, but we plan to extend this at least to 200TB in the following months. This blog entry describes the configuration and steps how to implement such beast by yourself.
I’ve just deployed a OpenIndiana storage system which uses a SuperMicro JBOD SC847E16-RJBO 45 disk enclosure and an LSI Logic SAS 9205-8e HBA controller with OpenIndiana (build 151a).
Kindle on Amazonin erinomainen sähköisten kirjojen lukulaite, jonka saa tilattua Amazonin verkkokaupasta reilun sadan euron hintaan. Jenkkimatkalla Kindlen voi noustaa itselleen noin 70 euron hintaan…
I’ve just uploaded my Pitfalls and Lessons Learned with node.js presentation slides from #ReaktorDevDay 2011 to http://www.juhonkoti.net/media/reaktordevday-juhomakinen-nodejs-2011-09-02.pdf.
One of my disks in a raidz2 array crashed a few days ago and it was time to hotswap a disk. zpool status showed a faulted drive: raidz2 DEGRADED 0 0 0 c3t6d0 ONLINE 0 0 0 c3t7d0 FAULTED 27 85.2K 0 too many errors c5t0d0 ONLINE 0 0 0 c5t1d0 ONLINE 0 0 0 …
You all know this: You learn something new like a new word and then the next day you’ll stumble across this new thing you have just learned in a newspaper. Most of this can be easily explained with some brain pattern matching: you have previously come across this word many times but because you didn’t …
Tänään tein: Kävin katsomassa Kalliossa yhtä kämppää. Vaatisi täydellisen pintaremontin ja hinta remontin kanssa menee budjettini ylitse. Tai menisi, jos tietäisin mikä budjettini on. Ainakin sain lisää kokemusta näytöistä :) Ostin koirakirjan! Koirien Pikkujättiläinen – Hoito, Kasvatus ja Rodut, Ulla Kokko, WSOY. Pistin myös sisäsivuille postit-lapun, jossa Bitey kieltää mua lukemasta sivuja 171 – 189 …
Erinäisten vaiheiden jälkeen päädyin elämäni ensimmäistä kertaa asuntonäytöille. Olen toki lapsena käynyt yhdessä vanhempieni kanssa katsomassa uutta koko perheen asuntoa, mutta nyt menin katsomaan asuntoa yksin itselleni. Ensimmäisenä kohteena oli Mäkelänkadulla sijaitseva 43m^3 kaksio. Bussipysäkki talon edessä ja takuulla tarpeeksi liikenteen ääniä pitkin kesää. Rappukäytävä oli vähän huonossa kunnossa, mm. alimmassa kerroksessa rapun alla oli jotain rojua …
Adding new SATA-disks to OpenSolaris is easy and it’s done with cfgadm command line util if the disk is in a normal ACPI SATA controller. I have also an LSI SAS/SATA controller SAS3081E-R which uses its own utils. Read more how to hotplug new disks with it…
OpenSolaris 2008.11 has a faulted e1000g driver which results in very poor upload performance. There’s a workaround which involves getting older version of the driver…