K2 Media Server failover behavior
K2 RAID
K2 Media
Servers
K2 SAN-attached systems
Ethernet
switches
A
A
B
B
Fibre Channel
connections
Control
Media
Control
Media
Control
FTP
Media
Control
FTP
Media
ISLs
X
X
X
X
3
4
1
2
If the following system connection or component fails to respond to network communication:
1
Either of the Media (iSCSI) network “A” connections between the GigE switch and the K2 Media
Server
2
The control connection between GigE switch “A” and K2 Media Server “A”
3
K2 Media Server “A”
4
The Fibre Channel connection between K2 Media Server “A” and RAID controller “A”
Then the following failover behavior occurs:
1. The media file system (SNFS) and media database on K2 Media Server “A” fail over and K2
Media Server “B” becomes the active media file system/metadata server.
2. All K2 SAN-attached systems drop communication on the “A” media port and begin using the
“B” media port, finding a path through GigE switch “B” to K2 Media Server “B”. All K2
SAN-attached systems use an iSCSI adapter (TOE) on the “B” K2 Media Server to provide
access to the Fibre Channel connected RAID storage.
3. All K2 SAN-attached systems keep communicating on the same control port, finding a new path
through GigE switch “A” and across an ISL to GigE switch “B” to reach K2 Media Server “B”.
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K2 SAN Installation and Service Manual
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Operating the K2 SAN
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