Dell POWERVAULT MD3620F - Manual (Page 13)

Hardware Installation 13
Redundancy is established by installing separate data paths between the host
and the storage array, in which each path is to one of the two RAID controller
modules installed in the storage array. Redundancy protects the host from
losing access to data in the event of path failure, because both RAID
controller modules can access all the disks in the storage array.
NOTE: For detailed information about all cabling configurations including direct
and SAN-attached hosts, cabling for remote replication environments, the use of
zoning, and HBA installation, see Configuring Fibre Channel With the Dell MD3600f
Series Storage Array, at support.dell.com/manuals.
Cabling PowerVault MD1200 Series Expansion
Enclosures
You can expand the capacity of your PowerVault MD3600f series storage array
by adding PowerVault MD1200 series expansion enclosures. You can expand
the physical disk pool to a maximum of 120 (or 192, if enabled using
Premium Feature activation) physical disks using a maximum of seven
expansion enclosures.
Expanding With Previously Configured PowerVault MD1200 Series
Expansion Enclosures
Use this procedure if your expansion enclosure is directly attached to and
configured on a Dell PowerEdge RAID Controller (PERC) H800 adapter.
Data from virtual disks created on a PERC H800 adapter cannot be directly
migrated to a PowerVault MD3600f series storage array or to a PowerVault
MD1200 series expansion enclosure connected to a PowerVault MD3600f
series storage array.
CAUTION: If a PowerVault MD1200 series enclosure that was previously attached
to PERC H800 adapter is used as an expansion enclosure to a PowerVault MD3600f
series storage array, the physical disks of the expansion enclosure are
reinitialized and data is lost. You must backup all data on the expansion
enclosure
before attempting the expansion.
To attach previously configured PowerVault MD1200 series expansion
enclosures to the PowerVault MD3200 series storage array:
1 Back up all data on the expansion enclosure(s).
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