7-Mode Snapshot directory and nosnapdir

It happens, especially in case of failover\giveback, that CIFS shares dedicated for NetApp snapshot directory are not any more accessible while underlying volume has nosnapdir option turn on.

A nosnapdir option is dedicated for those ones appreciating strong security on their snapshots (due to company security/audit policies). After all, this option restricting access to NetApp snapshot directory not only to clients, but also to filer itself. Our snapshots are really safe, but in case we would like to retrieve some files that names we are not aware of, we can’t use snap restore from CLI.
(more…)

Read More

[MetroCluster] How to troubleshoot interconnect link down and FC-VI

Recently I faced interconnect failure at one of customer environment. Everything run smoothly until Monday morning I received notification event about interconnect link down.

Cluster Interconnect link is DOWN

In environment that I have pleasure to work with, we have fabric-attached MetroCluster configuration. Between filers there are double HA interconnect cable (attached to the FC switch) and the Heartbeat communication is served via MetroCluster FC-VI card. In case this single two ported card goes down, then we can talk about a little disaster, because without heartbeat messages between nodes we have guaranteed takeover.
(more…)

Read More