Re: M2 NVME support

On Thu, 13 Apr 2023, Yuri wrote:

> andy thomas wrote:
>> 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.
>
> Only it looks like it's actually SATA and not NVMe, based on the output?

Yes, you are right! My apologies, please disregard that post.

Andy

>> 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 Thomas,
Time Domain Systems

Tel: +44 (0)7866 556626
http://www.time-domain.co.uk