HP 2000sa HP Direct-Connect External SAS Storage for HP BladeSystem Solutions - Page 92

Zoned storage—single domain, wide-port cabling, max performance with SATA drives

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Zoned storage-single domain, wide-port cabling, max performance with SATA drives This example illustrates cabling for best-possible performance in a single-domain configuration using single-port SATA drives. In this configuration, note the following: • This configuration combines a unique cabling scheme AND zone group creation strategy to achieve best possible performance in a single-domain configuration. • Wide-port cabling adds an additional cable from each MDS600 I/O module (in each MDS600 drawer) to the switch, improving performance by providing an additional connection between the storage and the server: one cable provides a x4 connection; two cables provide a x8 (wide-port) connection. For more information on switch ports, x4, and x8 (wide-port) cabling, see "HP StorageWorks 3Gb SAS BL Switch" (page 22). • Adding a second HP 3Gb SAS BL Switch (even though this is a single-domain environment) improves performance by providing two more connections between the MDS600 drawer and the server, for a total of four connections (when used in conjunction with the outlined cabling scheme and zone group creation strategy.) • Connecting one MDS600 drawer to one switch and the other MDS600 drawer to the same ports on the other switch allows for the creation of zone groups that span the MDS600 drawers. • Creating zone groups that include drives from each MDS600 drawer takes advantage of the unique cabling, so that all four connections between the storage and the server can be utilized. • To achieve maximum performance, assign more than two drives from each MDS600 drawer to each zone group. 92 Deployment examples

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Zoned storage—single domain, wide-port cabling, max performance with
SATA drives
This example illustrates cabling for best-possible performance in a single-domain configuration
using single-port SATA drives
. In this configuration, note the following:
•
This configuration combines a unique cabling scheme AND zone group creation strategy to
achieve best possible performance in a single-domain configuration.
•
Wide-port cabling adds an additional cable from each
MDS600
I/O module (in each MDS600
drawer) to the switch, improving performance by providing an additional connection between
the storage and the server: one cable provides a x4 connection; two cables provide a x8
(wide-port) connection. For more information on switch ports, x4, and x8 (wide-port) cabling,
see
“HP StorageWorks 3Gb SAS BL Switch” (page 22)
.
•
Adding a second HP 3Gb SAS BL Switch (even though this is a single-domain environment)
improves performance by providing two more connections between the MDS600 drawer and
the server, for a total of four connections (when used in conjunction with the outlined cabling
scheme and zone group creation strategy.)
•
Connecting one MDS600 drawer to one switch and the other MDS600 drawer to the same
ports on the other switch allows for the creation of zone groups that span the MDS600 drawers.
•
Creating zone groups that include drives from each MDS600 drawer takes advantage of the
unique cabling, so that all four connections between the storage and the server can be utilized.
•
To achieve maximum performance, assign more than two drives from each MDS600 drawer
to each zone group.
92
Deployment examples