The write cache on Unity also is battery backed. The difference between VNX vaulting and Unity vaulting is the location where the data is vaulted to (system drives on VNX, internal M2 SSD on Unity). Both still need the battery to do the vaulting process in the event of a catastrophic power failure.
Hi Andre, yes, why we would do that. rationale is, battery does need repalcement every 2-3 years and we have a principle of having parts lifecycle for atleast 5-7 years. If vaulting is the only requirement battery is supporting on unity and not like VNX where write cache was also battery backed, can we not have battery at all ? Cheers, Vivek
DELL_ChrisHolloway
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Posted February 5th, 2019 05:00
The write cache on Unity also is battery backed. The difference between VNX vaulting and Unity vaulting is the location where the data is vaulted to (system drives on VNX, internal M2 SSD on Unity). Both still need the battery to do the vaulting process in the event of a catastrophic power failure.