51
Software
MPIO to manage the fault-tolerant paths with failover/ failback
and load balance. Use MPIO multipath software so that your
operating system can identify alternate paths to the same
logical drive.
RAID
configuration
2 logical drives (each has 8 member drives). More logical
drives can be created from drives in the expansion enclosure.
LD0 mapped to CH0 AID and CH1 BID;
LD has to be
assigned to both controllers A and B to enable remote
replication
LD1 mapped to CH1 BID and CH0 AID;
LD has to be
assigned to both controllers A and B to enable remote
replication
Hybrid Host Connections
For hybrid systems that feature two additional iSCSI ports, they can be used for remote
replication or be used for host LUN mapping if users wish to do so.
Single Hybrid Unit Connected to FC/iSCSI Hosts
When connected to both FC host and iSCSI host, the connections will work in their
respective speeds. It maximizes the number of connections while keeping the optimum
performance gained by the high speed FC link and FC switch
(FC)
.
NOTE
To gain optimum performance, make sure the LAN switch
(1)
for the management
station
(2)
, the LAN switch for the systems, and the iSCSI switch
(3)
for iSCSI host
link are separated.
Otherwise, the host might consider the iSCSI connection as part of host connection
and might use it for data I/O, even if the iSCSI ports are not mapped to the host. As a
result, the data transaction speed will slow down to the level of iSCSI connection and
the fast FC connection bandwidth will be wasted.
