On 12/7/2016 8:24 AM, Skylar Thompson wrote:
I think ZFS can do this, although it's been a while since I've looked
and might just be for caching metadata. Most enterprise filesystems can
support it as well, though probably aren't an option for Drobo. We have
that option on our GPFS (er, Spectrum Scale), OneFS, and BlueARC systems.
ZFS main-line can't do this yet, but it is capable of using the SSD for
ZIL accceleration, which is a big win for NFS metadata operations. There
are proprietary enhancements to ZFS that have metadata on SSD, but none
in the Illumos tree yet that are production worthy.
I've personally used GPFS with metadata separation. This is for
enterprise users only, not for home use at all. The license costs are
quite intense, but it's because it's designed for PB of data with
enterprise features like replication, journals, quotas, etc. (with a
million knobs to tune)
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