Right now I've got a DPE and a single DAE, as well as the dual SPS units. I'm trying to figure out the best way to supply reliable power to the system, for when I start using it regularly.
Right now, the DPE is hooked to the SPSes. When the power fails, as I can tell, the DPE flushes its cache to the "cache vault" disks and then tells the SPSs to "shut off" (until power returns). The DAE just flat-out turns off with loss of power. What I'm wondering, is whether there are any risks to data integrity by this happening. Should I put the DAE on its own UPS? Should I put the whole rig (including SPSs) behind a UPS for more reliability and longevity in short power outages? Is everything fine as-is?
(Where I am, we havn't had any prolonged power outages in the past year, though the occasional hicup is more common. Can't recall any power outages lasting longer than 5 minutes, and system uptime records indicate I havn't had any long enough to make a UPS run out of battery)
Right now, the DPE is hooked to the SPSes. When the power fails, as I can tell, the DPE flushes its cache to the "cache vault" disks and then tells the SPSs to "shut off" (until power returns). The DAE just flat-out turns off with loss of power. What I'm wondering, is whether there are any risks to data integrity by this happening. Should I put the DAE on its own UPS? Should I put the whole rig (including SPSs) behind a UPS for more reliability and longevity in short power outages? Is everything fine as-is?
(Where I am, we havn't had any prolonged power outages in the past year, though the occasional hicup is more common. Can't recall any power outages lasting longer than 5 minutes, and system uptime records indicate I havn't had any long enough to make a UPS run out of battery)
