Re: M2 NVME support
- Reply: Yuri : "Re: M2 NVME support"
- In reply to: Thierry Thomas : "Re: M2 NVME support"
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Date: Thu, 13 Apr 2023 20:46:35 UTC
On Thu, 13 Apr 2023, Thierry Thomas wrote: > Le jeu. 13 avr. 23 ? 13:25:36 +0200, egoitz@ramattack.net <egoitz@ramattack.net> > ?crivait : > >> Hi!, > > Hello, > >> We are in the process of buying new hardware for use with FreeBSD and >> ZFS. We are planning whether to buy M2 NVME disks or just SATA SSD disks >> (probably Samsung PM* ones). How is you experience with them?. Do you >> recommend one over the another?. Is perhaps better support from some of >> them from a specificic version to newer?. Or do they perhaps work better >> with some specific disk controller?. > > I have a bad experience, the problem seems to be caused by the driver. > > See <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270409>. I thought I would mention I have been using a WD Blue SA510 250GB M2 NVME SSD mounted on a PCIe to NVME adapter card under FBSD 13.1 for some months now with no problems or any special drivers being installed. The server is a Dell PowerEdge 430 1U server fitted with four SATA disks in a ZFS pool, with a 4 GB partition on each disk being used for the swap (since using SSDs for swap space can wear them out quite quickly). Attached is a screenshot showing FreeBSD version, the NVME SSD type, mounted SSD partitions, the server make & model and some info about the spinning disks too (there is a known issue with the built-in Megaraid driver in the FreeBSD 13.1 kernel not working with the camcontrol utility nor converting disk device names like /dev/mfisyspd0 to traditional names such as /dev/ada0 but these controllers & disks do work with FBSD 13.1 as you cna see from the zpool output). Andy ---------------------------- Andy Thomas, Time Domain Systems Tel: +44 (0)7866 556626 http://www.time-domain.co.uk