Re: [gentoo-user] Re: Filesystem choice for NVMe SSD

[Andrew Savchenko]

Hi,

On Tue, 26 Jan 2016 17:29:36 +0000 (UTC) James wrote:
> > I have thoughts about caching NFS using filescached, but limited
> > durability of the drive (400 TBW warranty for 512 GB size) restrains
> > me here. Probably I'll use it for caching only in exceptional cases
> > (e.g. slow remote mounts like AFS), but with 64 GB RAM I doubt I'll
> > need additional NVMe-based caching, at least for now, with time
> > this may change of course.
>
> Well, to be truthful, I was hoping your application was a speed boost
> for clusters. Particularly a gentoo based cluster with some NVMe boards
> on workstations that lend their excess power to a local cluster. Lots of
> folks are building in house clusters where technical users have monster
> workstations and use those excess workstation resources to boost the local
> cluster. That's kinda my twist (lxqt on the desktop) for single (big
> problem/data) on gentoo with mesos clusters. Do drop me a line, should that
> type of usage permeate your thought_cycles.....

We have clusters at work, but they have quite different hardware.
For HA clusters we indeed use bcache on quite durable Intel SSD
(400 GB size, 8PBW resource). For HPC cluster we planned SSD cache
for storage, but due to funding cut-off we have only small SSDs on
each node.

Best regards,
Andrew Savchenko