I spent my lunch, and most of my mortgage payment, on 4 x 4TB Blue 4TB SSD 3D NAND (WDS400T2B0A). In this post: FreeBSd 13.1 smartctl output partition creation zpool creation In they go This is them, being inserted into the system: I am concerned by that 150.000MB/s transfers smartctl Let’s look at the smartctl […]
Dan makes another zpool Read More »
I might need to create another zpool. Or perhaps move a drives/zpool from one host to another. In this post: FreeBSD 13.1 Background I am combining two hosts (slocum and r720-01) into one new host (r730-01). I have been moving jails from those hosts. I have an ansible playbook for creating new entries in /etc/jail.conf.d/.
Maybe I need another zpool Read More »
This was written a few weeks ago and I just noticed today that it had not been published. Following on from I bought a new nvme drive – or did I?, I ran stressdisk on it. [dvl@test ~]$ sudo gpart add -a 4k -t freebsd-zfs nvd0 nvd0p1 added [dvl@test ~]$ gpart show nvd0 => 34
Bought a new NVMe drive. Installed it using cheap PCIe adaptor bought off Amazon. From /var/run/dmesg.boot nvd0: NVMe namespace nvd0: 244198MB (500118192 512 byte sectors) Surprisingly, the device is already partitioned. [dvl@test ~]$ gpart show nvd0 => 34 500118125 nvd0 GPT (238G) 34 500118125 – free – (238G) [dvl@test ~]$ Eh, is is this a
I bought a new nvme drive – or did I? Read More »
You might recall that suspect drive from the zpool replace on the weekend. Thomas Hurst suggested: Might be worth overwriting the drive, try to encourage it to actually reallocate the sectors now the data on them is no longer needed. I, being one to take advice from people on the internet, and Michael W Lucas,
writing random data via geli Read More »
In this post I will replace a working, but suspect, drive with another drive. No down time. The server is knew. In this post: FreeBSD 12.2 ZFS TOSHIBA MD04ACA500 5TB drive – the suspect drive: da17 TOSHIBA HDWE150 5TB drive – the replacement: da22 None of these drives are under warranty What drives are in
Replacing a failing drive in a ZFS zpool Read More »
This drive is going into knew, which has a suspect, but still working OK, drive. The replacement procedure has also been documented.
The incoming replacement drive Read More »
I have these boot drives, I want to copy them to another. They both happen to be zroot and bootable. I booted from mfsBSD and imported both new and old zroot, using the pool ID shown by zpool import -N. root@mfsbsd:~ # zpool import -N pool: data01 id: 2668514456528412656 state: ONLINE action: The pool can
Duplicating a zpool Read More »
In this post, I am creating a 4 drive ZFS pool consisting of two mirror. In this post: I’m booting from mfsBSD 12.1 ZFS Creating partitions On FreeBSD, it is convention to create partitions. It is not necessary, but I don’t use all the space in case a future replacement drive is slightly smaller than
Creating a 4 drive ZFS zpool: stripe over mirrors Read More »
I wrote this post late one night while pondering how to solve this problem. I may have solved it with much less effort. I want to copy a zroot from old drives to new drives. The new drives are in a test box of mine. Once the new drives are configured, I will replace the
replacing an existing zroot with a proper zroot Read More »