https://raymii.org/s/tags/disk.xml RSS feed for tag disk on Raymii.org https://raymii.org/s/blog/Spinrite_6.0_on_UEFI_and_NVMe_ssd_drives.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Spinrite_6.0_on_UEFI_and_NVMe_ssd_drives.html Spinrite is a hard drive recovery and maintenance utility written by Steve Gibson from GRC. It is marketed on the Security Now TWiT podcast which I often listen to. I have bought a copy of it and sometimes use it on solid state disks or SD cards. Spinrite 6.0 is written is assembly language and runs on top of MS-DOS or FreeDOS, using the BIOS. UEFI is not supported and neither are NVMe drives. This post will show you how to run Spinrite 6.0 on such a system anyway, using a modern linux live USB drive that can boot on UEFI only system and VirtualBox, exposing the NVMe disk as a SATA drive. Thu, 03 Nov 2022 21:00:00 GMT Thu, 03 Nov 2022 21:00:00 GMT https://raymii.org/s/articles/ncdu_-_for_troubleshooting_diskspace_and_inode_issues.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/articles/ncdu_-_for_troubleshooting_diskspace_and_inode_issues.html In my box of sysadmin tools there are multiple gems I use for troubleshooting servers. Since I work at a cloud provider sometimes I have to fix servers that are not mine. One of those tools is `ncdu`. It's a very usefull tool when a server has a full disk, both full of used space or full of used inodes. This article covers ncdu and shows the process of finding the culprit when you're out of disk space or inodes. Sun, 29 Oct 2017 00:00:00 GMT Sun, 29 Oct 2017 00:00:00 GMT https://raymii.org/s/tutorials/KVM_add_disk_image_or_swap_image_to_virtual_machine_with_virsh.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/tutorials/KVM_add_disk_image_or_swap_image_to_virtual_machine_with_virsh.html This tutorial shows you how to create and add a disk image to a KVM vm using virsh. This is useful when you for example want to expand the disk space of your virtual machine when it is using LVM, or if you want to add a swap disk to a virtual machine. Sun, 23 Feb 2014 00:00:00 GMT Sun, 23 Feb 2014 00:00:00 GMT https://raymii.org/s/tutorials/KVM_convert_qcow2_disk_images_to_raw_disk_images_for_performance.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/tutorials/KVM_convert_qcow2_disk_images_to_raw_disk_images_for_performance.html This tutorial shows you how to convert KVM qcow2 disk images to raw disk images. The qcow2 disk format has some decent features like encryption, compression and copy to write support. However, the compression and the copy processes make it quite a bit slower than raw disk images. Sometimes you want to convert the disk images so that the VM will perform better. Sun, 16 Feb 2014 00:00:00 GMT Sun, 16 Feb 2014 00:00:00 GMT