I have a High Availability FAS2020 dual heads. I am wanting to use this device as an ISCSI SAN that will house Several Virtual Machines for our Organization. The most resource intesive is a Database Server, and our Exchange Server.
I am a little disappointed that I need to Carve up so many disks just to run Data Ontap on both of the heads. My goal was to run just one large aggregate. But it appears that I need to divided the Disks between the two heads before setting them up in a Cluster.
What is the best way to do this and achieve performance? How many Disks get assigned to Each head. Raid4 or raid DP?
My second question has to do with the Networking ports. I need to be able to do ISCSI for my SAN. But I also need to Connect to my LAN for CIFS. It is imperitive that my solution be completely redundant, and still have decent performance. If I dedicate two of my 4 ethernet ports just to CIFS then I feel that the ISCSI SAN will suffer greatly from the lost bandwidth. Is there a way to use VIFS, with VLANS to get throughput and still get the end result that I am looking for?
I need to be able to do ISCSI for my SAN. But I also need to Connect to my LAN for CIFS. It is imperitive that my solution be completely redundant, and still have decent performance.
In a case of 2020, due to only 2 IP ports per head, you cannot separate IP SAN from CIFS on a physical basis, whilst having full redundancy. If you have a couple of switches supporting cross-stack LACP (like Cisco Etherchannel), you should create a multi-mode VIF on each head spanning both ports & then separate iSCSI from CIFS using VLANs.