NetApp has any tools for cabling (NVMe/SAS cables, FC cables, Ethernet cables) with AFF ASA FAS series?
#NetApp has any tools for cabling with AFF ASA FAS series?
topaz coral
reef reef
Generally the install guides cover off the install
click on install and setup A-Series systems
click through and you will get the PDF
eg
amber haven
And hwu has all supported cables and cards
topaz coral
example, each controller has 1 FC card with 4 ports. How I can connect to 2 SAN Switch for best practice?
As I think each controller go to both switches, port 1 and port 2 connected to SW1; port 3 and port 4 connected to SW2?
snow coyote
To be safe I usually assume that ports 1&2 are on the same ASIC. I then plug ports 1&4 into fc switch A and ports 2&3 into switch B. This helps with resiliency. If the card ASIC fails then you have reduced pathing to each switch instead of full loss to a single switch
topaz coral
do you have any document that said about which port will be same ASIC?
sand hatch
on the cards it's always neighboring ports. on the switch you'd have to ask Cisco, I guess it's 4 or 8 ports per ASIC
OTOH I have never seen a system where one ASIC on a card breaks, and the system doesn't panic/takeover, so I would argue it's more of a theoretical failure scenario
snow coyote
Depends on switch. Many of the newer Cisco switches have all ports on same ASIC
Nexus 9336, 93180 come to mind.
topaz coral
on the cards it's always neighboring ports. on the switch you'd have to ask Cisc...
if a card has 2 port, so they belong to same ASIC.
If a card has 4 port, so each 2 port will belong to same ASIC
Is that correct?
sand hatch
if a card has 2 port, so they belong to same ASIC.
If a card has 4 port, so eac...
usually, yes. But I cannot guarantee it since I have not looked at each and every card myself
snow coyote
I found out middle of last year that the new Netapp SAS cards (x2071) have a single ASIC. When i have systems quoted i usually have a second sas card for resiliency installed
sand hatch
a single chip could still mean two separate ASICs just co-located on a single carrier. And even if you have two chips, the PCIe interface is usually again an SPOF. If you want to maximuze redundancy, always go with two cards. But then again, the PCI bus backplane might become your SPOF. It's just juggling numbers at this point, and you always have the fallback of HA that takes care of any failures
IMHO it's not worth trying to min-max the redundancy this way since HA works so well and takes care of everything that could go wrong hardware-wise