[clug] Is there a NVMe equivalent to the Fusion-IO 'Virtual Storage Layer'?

steve jenkin sjenkin at canb.auug.org.au
Tue Mar 20 02:54:02 UTC 2018


Thanks very much for the reply & info.
I saw the nvme driver loaded, and was able to create filesystem and use it like a regular disk. I was after something more.

How do I turn on ‘extended memory’ like ‘VSL’ and bypasses the SCSI / HDD drivers for swap?
[much faster Virtual Memory, because avoids even ‘page faults’ and all the work by the kernel.]
[This is different to ‘swappiness’ in /proc/vm ]

I figure it has to be setup, either to use the whole device, or to use a partition.
I don’t care about wearing out the flash, but thanks for the observation.
For good M.2 SSD's, $0.80/GB vs $13.50/GB for my DDR3 DRAM, so if it wears out in a year or two, I’ve done well.

Any pointers or experience?


> On 20 Mar 2018, at 11:04, Duncan Roe via linux <linux at lists.samba.org> wrote:
> Hi Steve,
> Yes nowadays NVMe SSDs "just work" as regular disk drives - I put one into my
> 9YO system the other week. AFAIK they are still subject to a finite linit of
> read/write cycles unlike actual RAM, so I would suggest putting swap on an NVME
> is a good compromise.
> Cheers ... Duncan.
> -- 
> linux mailing list
> linux at lists.samba.org
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Steve Jenkin, IT Systems and Design 
0412 786 915 (+61 412 786 915)
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