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Best Practices for the Sun StorEdge 3510 FC Array 13
Non-Redundant DAS Tips and Techniques
■ A Sun StorEdge 3510 FC array with a single controller can be configured to
support up to four host connections. These connections can be used in pairs,
individually, or in any combination of both.
■ You will need to add SFP modules to support more than four host connections to
the Sun StorEdge 3510 array. Add one SFP module to support three connections
and add two SFP modules to support four connections.
■ Using two single-port FC host bus adapters (HBAs) or a dual-port 2-Gbit FC HBA
in single-server or dual-server configurations makes optimum use of the Sun
StorEdge 3510 FC array’s performance. Mapping logical drive partitions to two
paths while using multipathing software and load balancing provides the best
performance.
TABLE 1 Configuration Overview for Non-Redundant DAS
Single Server Configurations Dual Server Configurations Quad Server Configurations
Number of Servers 1 2 4
RAID Enclosures 1 1 1
Expansion Units As needed As needed One or more
Number of Controllers 1 1 1
Number of Disks 5 or more 12 or more 24 or more
Cache Optimization Random or sequential Random or sequential Random or sequential
RAID Levels Application-dependent Application-dependent Application-dependent
Fibre connection
option
Loop only Loop only Loop only
Drive configuration One or more logical drives
plus one global spare
Two or more logical drives
plus one global spare
Four or more logical
drives plus one global
spare
Disk Configuration One or more logical drives
plus one global spare
Two or more logical drives
plus one global spare
Four or more logical
drives plus one global
spare
Host Adapters per
server
Single-Port 2-Gbit FC Single-Port 2-Gbit FC Single-Port 2-Gbit FC
Traffic Manager Not required Not required Not required
Storage Switches Not required Not required Not required