On 02/12/2017 08:34 AM, Konstantin Olchanski wrote:
On Sat, Feb 11, 2017 at 10:07:01PM -0800, ToddAndMargo wrote:
Any of your guys use M.2 drives?
Any trouble getting SL7 to boot off them?
Yes, we use Kingston (Toshiba) 120GB M.2 SATA SSDs as boot disks. On older
machines
we use Kingston SV300 plain SATA SSDs.
No special problems to report. 0 failures. SMART attributes make sense.
(Generally, Kingston (Toshiba) SSDs have good reliability,
out of two pagesful of SSDs, in almost 5 years only 2 failures,
the very first SSD (SV100) bricked by firmware update, one SV300 turned
into a space heater (if powered, heats to more than 50 degC, does not work,
internal short in the controller chip. by luck no flames, no fire).
Do you use them in RAID One at all?
Yes, we have many pairs of SVP200 and SV300 SSDs in RAID1 (linux mdadm).
One pair is ZFS RAID1.
Why asking? Do you expect linux mdadm raid1 malfunction on SSDs?
Hi Konstantin,
I am asking as several motherboards I have looked at only
have one M.2 slot and raid would need two.
I may be misunderstanding here, but I think that if
you need two drives, you need a PCIe carrier to
put them into instead of the M.2 slot.
Maybe I misunderstand for the M.2 slot works.
Do you have a favorite PCIe 16x carrier?
Socket M.2 M-key is PCIe x4 (or SATA). So this is 4x M.2 carrier? I got some
free
M.2 carriers (dual M.2, I think) with some ASUS motherboards.
But I cannot use them, as we only have SATA SSDs due to excessive cost of PCIe
SSDs.
Our typical machine configuration is 120GB SSD for system partition, pair
of 6 or 8TB HDDs for home and data storage (mdadm raid1). A nightly cron job
to rsync backup the SSD contents. (still worried about SSDs bricking
themselves).
Thank you!
--
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Computers are like air conditioners.
They malfunction when you open windows
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