![]() In other words it confirms that ZFS will release memory when it's needed. And as per the answer below, as soon as you run it, kernel memory gets freed so I was able to allocate 64 GB before it got killed (I have very little swap). This python 3 script (you need to pip3 install numpy) will allocate about 1GB at a time until it fails. This guide will go through the process of installing ZFS on Ubuntu 16.04 LTS and setting up a storage pool. Now after it's all done, and nothing running on the machine, I have 34G in use by the kernel! Contribute to openzfs/zfs development by creating an account on GitHub. Running ps aux | awk ' do cat bigrand.csv > biggest.csv done Contribute to openzfs/zfs development by creating an account on GitHub. – my output (e.g.I have 64GB installed but htop shows 20GB in use: – take the output beginning with: `wwn-0xxxxxxxxxxxxxxxxx` for “SATA” – take the output beginning with: `nvme-eui.xxxxxxxxxxxxxxxx` for “NVM-e” Great job! first, than I miss the detection of “/dev/disk/by-id/ata_disk” through `ls -la /dev/disk/by-id` and the choose of: Now, if I discover how to modify the LBA on WD4002FFWX… I will be the happiest man LBA Format 1 : Metadata Size: 0 bytes – Data Size: 4096 bytes – Relative Performance: 0x1 Better (in use) LBA Format 0 : Metadata Size: 0 bytes – Data Size: 512 bytes – Relative Performance: 0x2 Good LBA Format 1 : Metadata Size: 0 bytes – Data Size: 4096 bytes – Relative Performance: 0x1 Better Since the OpenZFS project is separate from Oracle, some probably wonder why they don’t change the license to something that is compatible with the GPL so it can be included in the Linux kernel. LBA Format 0 : Metadata Size: 0 bytes – Data Size: 512 bytes – Relative Performance: 0x2 Good (in use) dev/nvme0n1 Samsung SSD 970 PRO 512GB 512 B + 0 B I can confirm that switching on Corsair MP600 works too and flawless as on Corsair MP510. Integrity checking for both data and metadata. Detach a disk or disk in a mirrored configuration as long as the remaining devices provide adequate redundancy for the configuration. For more information, see Replacing Devices in a Storage Pool. It has many advanced features including: Protection against data corruption. Replace a disk or disks in an existing mirrored configuration as long as the replacement disks are greater than or equal to the device to be replaced. It includes the functionality of both traditional file systems and volume manager. All further commands are going to need root credentials anyhow. OpenZFS is an open-source storage platform. ![]() Here is my somewhat simplified version of the same, intended for a singe disk installation.Īfter booting into Ubuntu desktop installation we want to get a root prompt. I find its final ZFS layout a bit too complicated for my taste but there is a lot of interesting tidbits on that page. You should also check the great Root on ZFS installation guide that's part of ZFS-on-Linux project for a full picture. Namely, manual installation allows for encryption, in addition to the custom pool layout and naming. You should use it instead of the manual installation procedure unless you need something special. So, here is adjusted variant of my setup.įirst of all, Ubuntu 20.04 has a ZFS setup option as of 19.10. However, that guide used Geli and, as correctly one reader noted in comments (thanks Alex!), there was no reason not to use ZFS' native encryption. Technically, I already have a guide for encrypted ZFS setup on Ubuntu 20.04. There is a newer version of this guide for Ubuntu 21.10.
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