zfs

  1. Z

    DTrace cannot get correct values of ZFS tunable variables (e.g. zfs_dirty_data_max, zfs_txg_timeout)

    I cannot use the script from ZFS dtrace scripts to print the correct value of zfs_dirty_data_max, and the output is as follows: CPU ID FUNCTION:NAME 2 85224 none:txg-syncing 41MB of 0MB used 0 85224 none:txg-syncing 25MB of...
  2. Abub001

    So I know this is the main NOOB question--- can I get by on a 128GB System Drive

    Have not touched linux (redhat) since right before xwindows was new. My plan is to set up a machine from used parts to work like a file server with a bunch of Raid5 of 4TB spinny HDD's and its main job will just be to nightly make backup copies of my PLEX media repository. But I would like to...
  3. Z

    ZFS UEFI loader cannot find ZFS bootable partition after mirroring and detaching

    I encountered a boot failure after switching the boot drive from a sata ada0 to a nvme drive nda0 with attaching/detaching, by executing the following commands: zpool attach root ada0p5 nda0p4 # after resilvering done zpool detach root ada0p5 Also, I installed a new ESP on nda0 mount_msdos...
  4. P

    ZFS Newbie: FreeBSD install Root on ZFS

    My question is about atime. I have read numerous sources that indicate atime=off is a performance enhancement. Since the device I am creating is primarily a squid proxy server they also recommend "atime=off" for their associated caches and data. Starting here Root On ZFS and continuing with...
  5. G

    Solved Using ZFS send/recv to migrate services; continuity of snapshot history

    I have an application where we run many services in jails. Each service is isolated from the others and keeps its local data in a ZFS dataset that is passed into the jail. We're working on increasing redundancy in the system. Right now we are using ZFS snapshots sent to a backup server to cover...
  6. nerozero

    ZFS External Drive ZFS - power loss, insufficient replicas, pool suspended, cannot online /dev/da0: pool I/O is currently suspended

    Hello, How to deal with the situation when the external drive with ZFS was temporary disconnected / power loss. After reconnecting drive: # zpool status pool: zrbackup01 state: SUSPENDED status: One or more devices are faulted in response to IO failures. action: Make sure the affected...
  7. DaLynX

    general/other Help troubleshooting slowness of freebsd guest on proxmox host

    Hello, I am running a small proxmox server with two friends. We each have an individual vm (mine running freebsd, two others linuxes) no complain on that side. I am also running a small shared services freebsd vm that hosts an nginx reverse proxy, a postfix relay and a mediawiki instance. I...
  8. Sergei_Shablovsky

    Complicated shell script for remote Installation without access to a remote console

    Dear FreeBSD Gurus! Please suggest shell script (probably must be complicated) to remote Installation of the FreeBSD Operating System Without access to a Remote Console. Most of You already read Remote Installation of the FreeBSDOperating System Without a RemoteConsole article, based on Martin...
  9. B

    looking for the reason for sudden very high CPU utilization on network/zfs related process

    First a bit of background: This is on a FreeBSD14 relatively older machine (CPU: Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz (2593.86-MHz K8-class CPU), with a 4 port Gbit ethernet interface (bge1: <HP Ethernet 1Gb 4-port 331FLR Adapter) and 384GB of RAM. a few ZFS pools set on 4x 8TB SAS drives...
  10. Young

    ZFS [HOW-TO] UFS to ZFS on a Live System

    Since there is no tutorial how to migrate a UFS installation to ZFS, I'll give my 5-cent contribution. Done this procedure yesterday at my home server that I run several services like Nginx + PHP, Samba, Transmission, Plex, Bhyve VM's, etc. You'll need a new disk that can hold all your data...
  11. R

    ZFS zpool administration infographics

    first part of my zpool administration infographics is ready, i hope it helps. modified as per suggestions..
  12. S

    ZFS ZFS + PostgreSQL - with a twist

    All, Looking to implement a dedicated server to perform data processing/analysis and it needs some fairly significant I/O. The "twist" is that the data's lifespan is the duration of time it takes to import, process, analyze and report on - then the database and the data is deleted. Storage...
  13. C

    ZFS ZFS metadata bloat problem?

    I discovered on BTRFS a metadata bloat problem. Basically, I copy an nspawn container folder (several gigs), and the metadata usage gets bloated by 115MB. As it's CoW a typical user would expect almost no extra space taken by this action (even being remotely aware of some overhead) and will not...
  14. rafael_grether

    Poudriere ccache on a ZFS dataset

    Hey folks, I'm migrating a server to OpenZFS. I mounted the /poudriere dataset to another disk/zpool. My question would be whether it is worth creating a /ccache dataset, or whether to create /ccache on a UFS disk. I just have 8GB RAM. Would a /ccache dataset be too overwhelming? Or a simples...
  15. U

    Solved Creating an encrypted ZFS volume with a keyfile?

    Hi all, I am trying to create an encrypted zfs volume that will be auto-mounted using a keyfile. According to online information this should be possible with the following command: zfs create -o mountpoint=/home/ -o encryption=on -o keysource=raw,file:///usr/local/homekey disk/home However...
  16. DaLynX

    bhyve How to set up storage for a bhyve hypervisor? ZFS or UFS for host? Guest?

    Hello, I am considering migrating a few VMs to a new hosts and would love to make it a freebsd one. I am not sure however of the best way to set up storage. From the Handbook I read that using ZFS on the host and ZFS volumes for the guests would be optimal. But a blog post from vermaden tells...
  17. rwv37

    ZFS zfs for mysql - separate data and logs? what logs? where are these logs?

    I'm about to set up mysql on a machine, and I know that in the past I've read about setting up specifically tweaked dedicated zfs datasets for it. I've never done that for mysql before, but I figure now if ever is the time to try it out. So, I searched for info about this to refresh my memory...
  18. Myersj281

    ZFS Replace /home with /Users in zfs pool

    So I installed a fresh system using ZFS with my home directory at /Users/joshua (I'm also a MacOS user so it feels familiar lol) and I noticed that /home still exists and is set in zroot. I suppose that's normal because the system probably assumes that other users would have their homes there...
  19. R

    jails share packages, binaries, perl modules across CBSD jails

    We have 3 servers with ~40 jails on each under CBSD management. Each jail running our perl application. We would like to share installed packages, binaries, installed perl modules across jails. Plain is master jail as a base image jails for application created via `cbsd jclone` , then via ZFS...
  20. M

    ZFS zfs sharenfs property ignored when mounting encrypted datasets

    Hi, I'm on 14.0-RELEASE and wondering if that is intended behaviour. I have an encrypted dataset with "sharenfs" property set (and indeed intent to share once mounted) but after loading the key and mounting, the dataset is not automatically exported (/etc/zfs/exports is empty) so I have to issue...
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