Yes the flash-backed RAID cards use a super-capacitor to backup the flash cache. You have a choice of flash module sizes to include on the card. The card supports RAID modes as well as JBOD.
I do not know if Gluster can make use of battery-backed flash-based Cache when the disks are presented by the RAID card in JBOD. The Hardware vendor asked "Do you know if Gluster makes use of flash-cache in JBOD?" If it does, I'm not certain how the size of this flash cache affects the operation. *Vincent Royer* *778-825-1057* <http://www.epicenergy.ca/> *SUSTAINABLE MOBILE ENERGY SOLUTIONS* On Mon, Apr 9, 2018 at 10:34 AM, Alex Chekholko <a...@calicolabs.com> wrote: > Your question is difficult to parse. Typically RAID and JBOD are mutually > exclusive. By "flash-backed", do you mean a battery backup unit (BBU) on > your RAID controller? > > On Mon, Apr 9, 2018 at 8:49 AM, Vincent Royer <vinc...@epicenergy.ca> > wrote: > >> >>> Is a flash-backed Raid required for JBOD, and should it be 1gb, 2, or >>> 4gb flash? >>> >> >> Is anyone able to clarify this requirement for me? >> >> >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users@gluster.org >> http://lists.gluster.org/mailman/listinfo/gluster-users >> > >
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