> Is there any data out there that have tracked these sort of ignition > incidents? I have to admit I'd never heard of this. We have quite a > few BBU backed RAID controllers in our servers and I've never had > anything remotely like this occur. I know anecdotal evidence is > meaningless, but this definitely surprised me a little.
I agree, it would be very informative if RAID HBA vendors would publish failure statistics of their Li-Ion based BBU products. > My gut tells me the risk of this is pretty low and most are going to > prefer the convenience of an onboard BBU to installing UPS'es in all > their racks (as good a practice as that may be). Again I agree, I am not recommending, nor did I mean to allude, that to be the proper and/or preferred solution for RAID controllers. To my knowledge, the mAh requirements of a DDRdrive X1 class product cannot be supported by any of the BBUs currently found on RAID controllers. It would require either a substantial increase in energy density or a decrease in packaging volume both of which incur additional risks. > Interesting product though! Thanks, Christopher George Founder/CTO www.ddrdrive.com -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
