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Hewlett Packard Enterprise | c02479551
CUSTOMER ADVISORY: (REVISED) The HP StorageWorks D2D4300-series Backup Systems with more than 126 virtual devices on a Fibre Channel port requires HP B-series fibre channel switches to be configured with non-default parameter values
Last update date:
2/28/2024
Affected products:
Brocade 4Gb SAN Switch for HPE BladeSystem c-Class
Brocade 4Gb SAN Switch for HPE BladeSystem p-Class
Brocade 8Gb SAN Switch for HPE BladeSystem c-Class
HPE 1606 Extension SAN Switch
HPE 8/24 SAN Switch
HPE 8/40 SAN Switch
HPE 8/8 SAN Switch
HPE 8/80 SAN Switch
HPE Converged Network Switches
HPE Encryption SAN Switch
HPE Storage SAN Director Switch
HPE StorageWorks 2/128 SAN Director Switch
Affected releases:
No affected releases provided.
Fixed releases:
No fixed releases provided.
Description:
Info
Revision Table Version Date Details Version 2 Added version FOS 6.4 portcfgNPIVport notes and D2D4324 product and configuration information Version 1 17 August 2010 Original document release The HP StorageWorks D2D4300-series Backup Systems with Fibre Channel (FC) ports connected to HP B-series switches shipped from the factory with Fabric OS (FOS) 6.3.0x or earlier will be configured for the default limit of 126 virtual devices on a single FC port. To increase this limit on an HP B-series switch, the switch needs to be re-configured as specified in this document.
Scope
NOTE: This issue only affects HP StorageWorks D2D4312 and D2D4324 Backup Systems with Fibre Channel ports connected to HP B-series switches shipped from the factory with FOS 6.3.0x or earlier. When connected in a SAN fabric, the HP StorageWorks D2D FC Backup System requires the connected Fibre Channel ports to be configured as N_Ports. This is the default configuration on the HP StorageWorks D2D Backup System. The fabric switch port or ports to which the HP StorageWorks D2D is connected must be NPIV-enabled F_Ports, which is the default on HP B-class (Brocade) FC switches. HP StorageWorks D2D4004fc, D2D4009fc, and D2D4106fc models can be configured with up to 81 devices on a single FC port. The HP StorageWorks D2D4112 can be configured with up to 121 devices, and the HP StorageWorks D2D4312 and D2D4324 can be configured with up to 251 devices up to on a single FC port. The C-series (Cisco MDS, SN6000C, and Nexus Switches) and H-series (8/20q, SN6000, and Qlogic switches) can support up to 255 virtual devices on a single FC port without any configuration changes. The virtual device per port limit has been increased to 255 by default in HP B-series switches shipping from the factory with FOS V6.3.1a or later. HP B-series switches which were shipped with FOS V6.3.0 or earlier and upgraded to V6.3.1a or later will need to run the procedure in this document to increase the maximum number of virtual devices per port. If this procedure has not been performed correctly, then some of the created virtual devices will not be visible to the fabric or accessible to the hosts on the SAN. This will appear with the following symptoms on the D2D GUI: The following symptoms are indicative in this example: In the D2D GUI, Library 26 shows Connection status = Connected, Library 27 is shown with Connection status = Partially Connected and Library 28 shows Connection status = Not Connected. In the D2D GUI, Library 27 displays the FC Port ID for one or more virtual tape devices but not for the media changer device and one or more virtual tape devices. With the Brocade switch defaults the last virtual address ID that is allocated to a D2D virtual device will end with the two digits 7E. To make this change, follow the example below for the fabric switch to which the D2D4312 or D2D4324 FC port is attached or is to be attached. The following example shows the configuration of these parameters on a B-series switch running FOS V6.3 or earlier: For a switch running FOS V6.4.0 or later, this change can be done without the switch being taken offline, as shown below. In this example, this action is done on port 9 : Explanation of the above values: Maximum logins per port or switch.login.perPortMax This parameter should be set to at least the number of virtual N_Port_IDs per port that has been configured on the D2D. The maximum is 255 and the default is 126. With FOS earlier than V6.4.0 and the HP StorageWorks 4/256 SAN Director, HP StorageWorks DC Backbone SAN Director or HP StorageWorks DC04 SAN Director with an FC4-48 or FC8-48 port blade: For ports 0 through 15 the maximum number of virtual N_Port_IDs per port is 255; for ports 16 through 47, the maximum number is 127. With FOS V6.4.0 and later and the HP StorageWorks DC Backbone SAN Director with an FC4-48, FC8-48 port blade or FC8-64: For all ports the maximum number of virtual N_Port_IDs per port is 127 when Virtual Fabrics (VF) is disabled; with Virtual Fabrics enabled, the limit is 63 on the default switch. For logical switches in VF, the maximum number of virtual N_Port_IDs per port is 255 on the first 112NPIV device ports to log in. Device ports port 113 and greater are limited to 63 virtual N_Port_IDs per port. With FOS V6.4.0 and later and the HP StorageWorks DC04 SAN Director for an FC4-48, FC8-48 port blade or FC8-64, the maximum number of virtual N_Port_IDs per port is 255. Maximum logins per switch or switch.login.perSwitchMax This parameter should be set to at least the number of virtual N_Port_IDs per switch: With FOS earlier than V6.4.0, the default setting is 15 multiplied by the < number of ports > and the maximum is 255 multiplied by the < number of ports >. With FOS V6.4.0 and later, the maximum logins per switch has decreased. When a switch is upgraded to V6.4 it retains the old value, which may be higher than the switch supports. With FOS V6.4.0 and later, the default maximum logins per switch is 16 multiplied by the < number of ports > and the maximum (126 multiplied by the < number of ports >). NPIV PP limit This parameter is shown as part of the portCfgShow CLI command and shows the maximum number of ports set by the switch.login.perPortMax parameter.
Resolution
To verify these changes have been made to the switch, perform the following CLI command: FOS V6.3 or earlier: configshow | grep switch.login The output should be as shown in the example above. FOS V6.4 or later: portconfigshow The output should be as shown in the example above. Proactive Updates Receive support alerts (such as Customer Advisories), driver updates, software, firmware, and customer replaceable components, in your e-mail through HP Subscriber's Choice. Sign up for Subscriber's Choice Driver, Patch, Security, and Support alerts at the following URL: http://www.hp.com/go/myadvisory
