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| Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | ||
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Solution Type Technical Instruction Sure Solution 1006076.1 : Sun StorEdge[TM] A5x00: How to determine which A5x00 interface board port is connected to a specific HBA port
PreviouslyPublishedAs 208474 Description This document is meant to aid the intrepid trouble shooter in his quest to match a specific HBA port to a photon (A5x000) port. Steps to Follow In order to determine which port on an A5x00 Interface-Board connects to an HBA port(Host Bus Adapter), the following two A5x00 fundamentals need to be understood: In A5x00 architecture, the data flow connections are summarized as follows: HBA --> IB (Interface Board) --> front/rear drives --> IB --> rear/front drives If an HBA is connected to IB-Port0, then: front drives --> IB-Port1 --> rear drives. If an HBA is connected to IB-Port1, then: rear drives --> IB-Port0 --> front drives. The last digit of the port WWN (world wide number) of the SES (SCSI Enclosure Services) device (A5x00 IB) has great significance. See the A5x00 port location table below.
* Explanation of abbreviation: soc - Serial Optical Controller A0 - IB-A Port 0 A1 - IB-A Port 1 B0 - IB-B Port 0 B1 - 0IB-B Port 1 How can you obtain the last digit of the port WWN First, use "luxadm -e port" command to list out all installed HBAs on the host system. # luxadm -e port Found path to 2 HBA ports /devices/pci@a,2000/pci@2/SUNW,ifp@5:devctl CONNECTED /devices/pci@b,2000/pci@2/SUNW,ifp@5:devctl CONNECTED Next, use "luxadm -e dump_map <one of the paths from luxadm -e port output>" to obtain port WWN of A5x00 SES device. # luxadm -e dump_map /devices/pci@a,2000/pci@2/SUNW,ifp@5:devctl
* Explanation of abbreviation: Pos - Position or location AL-PA - Arbitrated Loop Physical Address Hard-Addr - Hardware address Note that under the Type column: 0x1f --> HBA/initiator 0xd --> SES device There may be multiple 0x1f HBA entries, but the one local to the host server will be indicated as "(Unknown Type,Host Bus Adapter)". All other 0x1f entries are probably HBAs from other host servers and are appropriately marked as "(Unknown Type)". Using the A5x00 data flow principle, the next 0xd (SES device) entry immediately following the 0x1f (Unknown Type,Host Bus Adapter) would be used to identify the A5x00 IB port location. So for the HBA with the path /devices/pci@a,2000/pci@2/SUNW,ifp@5, the port WWN of the SES device is 5080020000021269. The last digit is 9, so the A5x00 port location, according to above A5x00 port location table, is "A0". Use above methodology for other paths reported from luxadm -e port output to determine other A5x00 IB port locations. Reference Technical Instrcution <Document: 1005907.1> to decode HBA paths to a specific PCI slot# for Ultra 5 to SunBlade 1000 servers. Reference Technical Instruction <Document: 1004664.1> to decode HBA paths to a specific SBus slot# for Ultra-Enterprise 3x00-6x00 servers. Product Sun StorageTek A5200 Array Sun StorageTek A5100 Array Sun StorageTek A5000 Array Internal Comments For internal Sun use only.
A5x00 data flow and IB port location table obtained from SunEd's IB port, A5000, A5100, A5200, A5x000, Photon Previously Published As 49887 Change History Date: 2005-05-05 User Name: 7058 Action: Approved Comment: Fixed &dash and " problems throughout doc. Updates OK. OK to republish. Version: 6 Date: 2005-05-02 User Name: 7058 Action: Accept Comment: Version: 0 Attachments This solution has no attachment |
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