Administrator Guide

b. In the IP Address eld, type an IP address for the NAS controller.
c. Click OK.
d. Repeat the preceding steps for each NAS controller.
e. To specify a VLAN tag, type a VLAN tag in the VLAN Tag eld.
When a VLAN spans multiple switches, the VLAN tag is used to specify to which ports and interfaces to send broadcast
packets.
f. Click Next.
8. To verify connectivity between the FluidFS cluster and the Storage Center, use the Connectivity Report page. The NAS
controller ports must show the status asUp before you can complete the wizard. If you click Finish and the NAS controller ports
do not have theUp status, an error will be displayed.
• (iSCSI NAS appliances) When the Connectivity Report initially appears, iSCSI logins might still be occurring in the
background, causing some or all of the
FluidFS cluster iSCSI initiators to show the status Not Found/Disconnected. If
you see this status, wait 30 seconds, then click Refresh to update the Connectivity Report. When the iSCSI logins are
complete and the Connectivity Report has been refreshed, the status for each FluidFS cluster iSCSI initiator shows as Up.
• (Fibre Channel NAS appliances) When the Connectivity Report initially appears, the FluidFS cluster HBAs show the status
Not Found/Disconnected. You must record the WWNs and manually update fabric zoning on the Fibre Channel
switch. Then, click
Refresh to update the Connectivity Report. When the zoning is congured correctly and the
Connectivity Report has been refreshed, the status for each FluidFS cluster HBA shows as Up.
9. Click Finish.
NOTE: The Storage Center that was just added is not providing storage space to the FluidFS cluster yet. After
adding a Storage Center, you must expand the NAS pool to get the new Storage Center to provide block-level
storage for the NAS pool.
10. Expand the NAS pool.
When the expand NAS pool process is complete, the Storage Center tab will display both Storage Centers and the Volume
Status should show as Up.
Adding and Deleting NAS Appliances in a FluidFS Cluster
FluidFS supports up to four NAS appliances for each FluidFS cluster.
Add NAS Appliances to a FluidFS Cluster
You can add a NAS appliance (two NAS controllers) to a FluidFS cluster to increase processing power. Adding a NAS appliance
allows additional client connections and evenly redistributes client connections and
FluidFS cluster operations among more NAS
controllers contributing their resources.
Prerequisites
• The additional NAS appliance is mounted in a rack and cabled, and the NAS controllers are in standby mode and powered on. A
NAS controller is on and in standby mode if the power LED is ashing green at around two ashes per second.
• NAS appliance service tags are recorded.
• New client VIP IP addresses are available to be added to the new NAS appliance. To ensure eective load balancing, use the
following recommendations to determine the number of client VIPs to dene:
– If client access to the FluidFS cluster is not through a router (in other words, a at network), dene one client VIP per
FluidFS cluster.
– If clients access the FluidFS cluster through a router, dene a client VIP for each client interface port per NAS controller.
• New NAS controller IP addresses are available to be added to the new NAS appliance. Verify that there are two additional IP
addresses available per NAS appliance.
About this task
For high availability reasons, you must add NAS appliances as NAS controller pairs. You cannot add a single NAS controller. Only one
NAS appliance can be added at a time up to a maximum of four NAS appliances (eight NAS controllers).
Adding a NAS appliance is a seamless operation that does not interrupt current FluidFS cluster operations. After the NAS appliance is
successfully added, new client connections are automatically distributed to all NAS controllers, ensuring that there is ecient load
balancing between all NAS controllers.
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FluidFS Maintenance