Now all of the 8 disks are 10TB and I do not intend to do a dd of the whole disk, because that's 14hours for each disk, so I'd really appreciate if someone has an idea how to achieve a wipe. * dd if=/dev/zero of=/dev/sda bs=1M count=1000 -> no errors (obviously), Proxmox GUI after reload still shows disk as ddf_raid_member * wipefs -fa /dev/sda -> no errors, Proxmox GUI after reload still shows disk as ddf_raid_member Of course you may see that different, because Virtual Environment 7.0-8 is flawless and bug-free already. wipefs command also have -help option to show list of options. Whatever you decided, you decided wrong - because that's a bug. We can use man and info command to see the manual page of wipefs command. I can click "wipe disk", some are-you-sure-warning appears, I click yes, some progress bar appears. We just saw how, when invoked without specific options, wipefs just. Wipefs can be used not only to erase existing signatures on a device, but also to create a. ZFS does not see any free disks, because all are marked as ddf_raid_member. wipefs Linux command tutorial with examples Software requirements and conventions used. You can also use disk scrubbing program such as scrub. You can use the shred command to securely remove everything so that no one recover any data: shred -n 5 -vz /dev/sdb. Put some disks from an old vmware installation in there, want to create a ZFS pool on them. Method 2: Securely wipe hard disk with shred command. wipefs -a /dev/sda You still have to stop any process using the device though, such as LVM. I/O size (minimum/optimal): 512 bytes / 512 bytes The wipefs (Debian/Ubuntu package: util-linux) program lets you easily delete the partition-table signature. HTGWA: Create a RAID array in Linux with mdadm. wipefs -a /dev/nvme0n1 See the kernel documentation for bcache for more detail and usage examples. Sector size (logical/physical): 512 bytes / 512 bytes bcache is sometimes used on Linux devices to allow a more efficient SSD cache to run in front of a single or multiple slower hard drivestypically in a storage array. wipefs does not erase the filesystem itself nor any other data from the device. I could do wipefs from CLI but works only if I add -a and -f flags.īack to web gui, I tried again and get the same error.ĭisk /dev/sdb: 200 GiB, 214748364800 bytes, 419430400 sectorsĭisk model: VBOX HARDDISK => As you can see, I was testing in VirtualBox. 1 From the man page of wipefs (emphasis mine): DESCRIPTION wipefs can erase filesystem, raid or partition-table signatures (magic strings) from the specified device to make the signatures invisible for libblkid. I have tried to wipe out an HDD which I previously using as Ceph OSD drive and get this message:ĭisk/partition '/dev/sdb' has a holder (500)
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