dev-OpsThe true delight is in the finding out rather than in the knowing. — Isaac AsimovHOMEAdministrationApacheChefCouchDBGitLunixMySqlPostgreSvnTomcatVirtualizationEvolutionLanguagesBashHibernateHtmlJavaJavaScriptjQueryPerlPhpRubyNotesOutter WorldProjectsToolsCloudCommunicationPerformanceScalingSecuritySeoTestingAV1 codecLearn how to instantly improve online viewing experience for your users by embracing the new AV1 video format that is already supported by Chrome and Firefox. This short guide will also show how to replace your GIF’s with videos, using AV1 or H.264, to make your files twenty to forty times smaller.https://evilmartians.com/chronicles/better-web-video-with-av1-codec201903/29CATEGORYPerformanceWrite commentOVH Setup server hybrid second disk arrayAs OVH doesn’t provide a guide to install the second disk array, which is sold optionally, I will publish my solution.Please be careful, only try these on test configurations and without any disks containing critical data. Some commands can destroy all of your data.There seems to be soon a solution within the manager – but for now this isn’t working:Tested on Ubuntu 14.04Some commands to detect your actual configuration:fdisk -llsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINTdf -h -x devtmpfs -x tmpfs    fdisk -llsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINTdf -h -x devtmpfs -x tmpfsDelete sdb1/sda1 with parted:parted /dev/sdb(parted) printModel: ATA HGST HUS726040AL (scsi)Disk /dev/sdb: 4001GBSector size (logical/physical): 512B/512BPartition Table: gptNumber  Start   End    Size   File system  Name     Flags1      1049kB  537MB  536MB               primary  boot(parted) rm 1(parted) quitparted /dev/sda(parted) printModel: ATA HGST HUS726040AL (scsi)Disk /dev/sda: 4001GBSector size (logical/physical): 512B/512BPartition Table: gptNumber  Start   End    Size   File system  Name     Flags1      1049kB  537MB  536MB               primary  boot(parted) rm 1(parted) quit    parted /dev/sdb(parted) printModel: ATA HGST HUS726040AL (scsi)Disk /dev/sdb: 4001GBSector size (logical/physical): 512B/512BPartition Table: gptNumber  Start   End    Size   File system  Name     Flags1      1049kB  537MB  536MB               primary  boot(parted) rm 1(parted) quitparted /dev/sda(parted) printModel: ATA HGST HUS726040AL (scsi)Disk /dev/sda: 4001GBSector size (logical/physical): 512B/512BPartition Table: gptNumber  Start   End    Size   File system  Name     Flags1      1049kB  537MB  536MB               primary  boot(parted) rm 1(parted) quitAdd new raid partition (needs to be done for sdb and sda):# Create raid 1 in live linux systemparted -a optimal /dev/sdb# Place a flag gpt or mbrmklabel gpt# Create partitionmkpart primary ext4 0% 100%# Mark partition as software raid partitionset 1 raid on# Verify its allignedalign-checkoptimal# Show resultsprint# Create raid 1 in live linux systemparted -a optimal /dev/sda# P