HP StorageWorks 2012sa HP Direct-Connect External SAS Storage for HP BladeSyst - Page 58

HP 3Gb SAS BL Switch installation notes and best practices

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HP 3Gb SAS BL Switch installation notes and best practices • When selecting a BladeSystem interconnect bay for the switch, make sure that the selected interconnect bay maps to the desired server blade. For more information, see "Zoning requirements and device mappings" (page 51). • Both switches in an interconnect bay row of the BladeSystem c-Class enclosure must be the same model. For example, both switches must be 3Gb SAS BL Switches. Mixing SAS BL Switches and Fibre Channel or Ethernet switches in the same interconnect bay row is not supported. • In dual-domain configurations with two switches installed in the same interconnect bay row of the BladeSystem enclosure: ◦ Both switches must have the same version of firmware installed. ◦ If both switches need updating, they must be updated individually. First, update the firmware on the switch with the active VSM. Then, update the firmware on the switch with the passive VSM. • When connecting cables to external SAS storage enclosures, creating zone groups, and assigning zone groups to servers, be sure to follow HP recommendations for a supported configuration. For more information, see "Zoning information" (page 50). • When assigning drive-bay based zone groups to a server, the server blades may need to first be taken offline. Restart them after completing the assignments and saving all changes in the VSM interface. For more information, see "Zoning requirements and device mappings" (page 51) . MDS600 storage enclosure installation notes and best practices • The MDS600 storage enclosure may be the heaviest item in the rack. Make sure that the MDS600 is installed at the bottom of the rack. For example, if connecting six MDS600 to one BladeSystem c-Class enclosure, install four MDS600 enclosures in the bottom of the rack, install the c-Class enclosure just above the midpoint of the rack, and install the remaining two MDS600 enclosures at the top of the rack. When installing drives in the enclosures, populate drive bays in the bottom-most MDS600 first. Plan the rack installation carefully because it is difficult to change the location of components after they are installed. • When installing drives, populate the drive bays from the rear to the front of the drawer, starting with the highest device bay ID number. • Use blanks to fill unpopulated drive bays. Gaps between components cause changes in airflow through the device. Using blanks ensures proper airflow. • If firmware on the MDS600 needs updating, note the following: ◦ When included In BladeSystem solutions, MDS600 firmware must be updated using the VSM interface. Other updating methods are not supported. ◦ Be sure to obtain the .fuf file download from the HP website (not the .SCEXE file). The .fuf file is used when updating the MDS600 using the VSM. ◦ Before installing the firmware, all blade servers with access to the MDS600 must be powered off. If the servers are powered on, the Update Storage Enclosure Firmware task is not available. ◦ Before installing the firmware, ensure the switch status is Active or Not Redundant. If the status is a value other than active or non-redundant, firmware updates are not allowed. ◦ To install the firmware, access the switch marked as Active in the VSM nagivation tree. 58 Installation notes and best practices

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HP 3Gb SAS BL Switch installation notes and best practices
•
When selecting a BladeSystem interconnect bay for the switch, make sure that the selected
interconnect bay maps to the desired server blade. For more information, see
“Zoning
requirements and device mappings” (page 51)
.
•
Both switches in an interconnect bay row of the BladeSystem c-Class enclosure must be the
same model. For example, both switches must be 3Gb SAS BL Switches. Mixing SAS BL
Switches and Fibre Channel or Ethernet switches in the same interconnect bay row is not
supported.
•
In dual-domain configurations with two switches installed in the same interconnect bay row
of the BladeSystem enclosure:
◦
Both switches must have the same version of firmware installed.
◦
If both switches need updating, they must be updated individually. First, update the
firmware on the switch with the active VSM. Then, update the firmware on the switch with
the passive VSM.
•
When connecting cables to external SAS storage enclosures, creating zone groups, and
assigning zone groups to servers, be sure to follow HP recommendations for a supported
configuration. For more information, see
“Zoning information” (page 50)
.
•
When assigning drive-bay based zone groups to a server, the server blades may need to first
be taken offline. Restart them after completing the assignments and saving all changes in the
VSM interface. For more information, see
“Zoning requirements and device mappings”
(page 51)
.
MDS600 storage enclosure installation notes and best practices
•
The MDS600 storage enclosure may be the heaviest item in the rack. Make sure that the
MDS600 is installed at the bottom of the rack. For example, if connecting six MDS600 to one
BladeSystem c-Class enclosure, install four MDS600 enclosures in the bottom of the rack,
install the c-Class enclosure just above the midpoint of the rack, and install the remaining two
MDS600 enclosures at the top of the rack. When installing drives in the enclosures, populate
drive bays in the bottom-most MDS600 first. Plan the rack installation carefully because it is
difficult to change the location of components after they are installed.
•
When installing drives, populate the drive bays from the rear to the front of the drawer, starting
with the highest device bay ID number.
•
Use blanks to fill unpopulated drive bays. Gaps between components cause changes in airflow
through the device. Using blanks ensures proper airflow.
•
If firmware on the MDS600 needs updating, note the following:
When included In BladeSystem solutions, MDS600 firmware must be updated using the
VSM interface. Other updating methods are not supported.
◦
◦
Be sure to obtain the .fuf file download from the HP website (not the .SCEXE file). The .fuf
file is used when updating the MDS600 using the VSM.
◦
Before installing the firmware, all blade servers with access to the MDS600 must be
powered off. If the servers are powered on, the
Update Storage Enclosure Firmware
task
is not available.
◦
Before installing the firmware, ensure the switch status is Active or Not Redundant. If the
status is a value other than active or non-redundant, firmware updates are not allowed.
◦
To install the firmware, access the switch marked as Active in the VSM nagivation tree.
58
Installation notes and best practices