We need to convert a FAS2620 (Single node cluster) to a FAS2720 HA... first step is to replace the controller so that we end up with a FAS2720 (Single node cluster) we will then add the other node to the cluster. But at what point do out change the Chassis/Controller configuration to HA? (boot into maint and run the ha-cofig command... ) And I guess we need to do it on both nodes?
#From single node to cluster?
wild shuttle
umbral coyote
It depends but you should
The chassis is probably configured for non-ha due to the 2620 being there now
You will likely need to replace with the 2720 and boot to maintenance mode and change the chassis and controller to non ha first. Then get the single node working. Halt the node. Boot into maintenance mode again and change the chassis and node to ha mode. Halt and boot. Establish/verify cluster lifs. Then boot second controller into maintenance mode and verify it is in ha mode and if not set it. Then halt it and boot the node and join the cluster
It may be possible to do that in a single step
(Insert and boot both nodes to maintenance and set to ha along with the chassis) but I suspect ONTAP may have some issue when flipping the 2620 to 2720
wild shuttle
Yeah.. we will take it nice and slow 🙂 After we get on FAS2720 HA we will swap to an FAS50 😉 Where we also need to replace the nodes with IOM12 modules, and attach the old controller chassis as a shelf... and yes we might be able to do this in one swift move even with old ONTAP versions... then again don't think the FAS50 would be happy with ONTAP 9.11.1 which is on the FAS2620... so it's a swap to FAS2720, then FAS2720HA, then update to 9.16.1, then swap in the FAS50... most of the time we will be waiting for the systems to boot... I haven't timed it, but the FAS50 seems to be even slower than the older FAS8200 systems... 🙂
So I plan with an all day procedure and downtime to do this...
(I already did this from FAS8200 to FAS50 which went OK... )
umbral coyote
the FAS50 should no way be slower than a FAS8200. 3 generations better of the INTEL chipset, faster RAM. Heck, even the NVMe FlashCache built into the chassis...or do you mean the Boot Process?
wild shuttle
the FAS50 should no way be slower than a FAS8200. 3 generations better of the IN...
Yes the whole system is faster for sure.. .but the boot process is way slower... and to follow the procedure for "headswap" you need to boot 100-times it seems 😉
umbral coyote
yeah...POST checks are getting more robust. Headswap reboots seem like a lot. It could be worse. I had to convert A700 from 4x10 breakout back to 2x40 for switch upgrades.
Having to boot into MAINT to convert the NIC, then halt the node, then hit the BMC and issue the "system power cycle" to force the system to see the change is not fun either. And then repeat for the partner node and the other 3 ha pairs