Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | |||
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Solution Type FAB (standard) Sure Solution 1000283.1 : Sun Fire 4800/E4900/6800/E6900 systems with US-IV+ boards have restrictions which limit the number of domains when Repeater Board V1 is installed.
PreviouslyPublishedAs 200398 Product Sun Fire 4800 Server Sun Fire 6800 Server Sun Fire E6900 Server Sun Fire E4900 Server Bug Id <SUNBUG: 5081112> <SUNBUG: 6264812> <SUNBUG: 6260944> Part
Impact When using US-IV+ System boards in a Sun Fire Midrange server with Repeater version 1 (V1) boards, only one active domain is allowed per partition. The System Controller firmware will enforce this requirement. The impacted Repeater Boards are only the V1 version; V2 Repeater Boards do NOT require this restriction, and as such do NOT limit the configuration to only one domain per partition. Note that the minimum supported firmware version with US-IV+ boards is 5.19.1. Contributing Factors Any US-IV+ board in a system with V1 repeaters will cause this restriction to be enforced on a per-partition basis. (See below for a table of possible domain combinations.) Symptoms The following example shows the error encountered when attempting to bring up a domain with an US-IV+ board without properly configuring it, i.e., without first running "setupplatform -p usiv+ ". Note that /N0/SB4 is the US-IV+ board. v4u-4800b-sc0:A> setkeyswitch on Powering boards on ... Aug 25 12:37:23 v4u-4800b-sc0 Domain-A.SC: ERROR: UltraSPARC IV+ CPUs detected in this domain. Domain is not set up to support UltraSPARC IV+. Please setkey off this domain, run setupplatform to support UltraSPARC IV+ CPUs in domain A. setkeyswitch operation did not complete keyswitch is: standby v4u-4800b-sc0:A> setkeyswitch off v4u-4800b-sc0:A> To verify this, type the following commands on the SC : v4u-4800b-sc0:SC> showplatform -p usiv+ UltraSPARC IV+ is not supported in domain A UltraSPARC IV+ is not supported in domain C v4u-4800b-sc0:SC> console a Connected to Domain A Domain Shell for Domain A v4u-4800b-sc0:A> showb Slot Pwr Component Type State Status Domain ---- --- -------------- ----- ------ ------ /N0/SB4 Off CPU Board V3 Assigned Not tested A /N0/IB6 Off PCI I/O Board Assigned Not tested A /N0/IB8 Off PCI I/O Board Assigned Not tested A
Root Cause There is a limitation in the AR ASIC specific to its use on the Sun Fire Mid-Range Level 2 Repeater Board Version 1. When multiple domains are configured in the same partition, the limitation could result in a domain interruption. Therefore, in order to avoid that possibility, only one domain per partition is allowed when US-IV+ boards are in a partition and Version 1 repeaters are in use. If US-IV+ boards exist only in one partition, the other partition may have two domains. Resolution The firmware will enforce the appropriate restrictions per the tables below, so no specific user actions are required. If the user needs to use US-IV+ *and* has two domains per partition, the system must be upgraded with V2 repeaters. Configuration Examples when using V1 repeaters: If US-IV+ Boards will *only* go into domain A, it is possible to have two domains in the second partition, C and D. Likewise, if US-IV+ Boards will *only* go into domain C, it is possible to have two domains in the first partition, A and B. Remember that using an US-IV+ board in either domain B or D is not allowed in any configuration. See tables below. Sun Fire 4800/E4900
Sun Fire 6800/E6900
The "setupplatform -p usiv+" command needs to be run during installation of US-IV+ boards. This command tells the SC which domains are intended to contain US-IV+ boards and allows US-IV+ boards to be used there. This command can only be run when the domains in the partition have their keyswitches in the OFF position. "showplatform -p usiv+" displays whether the SC believes US-IV+ boards will be used in the specified domain. Example: v4u-4800b-sc0:SC> showplatform -p usiv+ UltraSPARC IV+ is not supported in domain A UltraSPARC IV+ is not supported in domain C v4u-4800b-sc0:SC> setupplatform -p usiv+ UltraSPARC IV+ Configuration ---------------------------- Is UltraSPARC IV+ going to be deployed in domain A? [false]: true Domain A keyswitch position is standby. The position must be off. Can not change this value when the above domains are powered on. v4u-4800b-sc0:SC> setkeyswitch -d A off Powering boards off ... v4u-4800b-sc0:SC> setupplatform -p usiv+ UltraSPARC IV+ Configuration ---------------------------- Is UltraSPARC IV+ going to be deployed in domain A? [false]: true Is UltraSPARC IV+ going to be deployed in domain C? [false]: false v4u-4800b-sc0:SC> showplatform -p usiv+ UltraSPARC IV+ is supported in domain A UltraSPARC IV+ is not supported in domain C Note: When using US-IV+ and V1 repeater boards, you cannot use domains B and D, even by themselves. The System Controller firmware will enforce the domain restrictions. You cannot choose to run multiple domains in a partition "at your own risk". It is not allowed. If the MAC address/hostid are needed from domains B or D, use the MAC Address change procedure outlined in the Systems Platform Administration Manual included with the firmware. Repeater Board V2 boards (501-7594) are NOT impacted by this issue. To check if the system has Repeater Board V2 installed, run the showboards command, which identifies 501-7594 as Repeater Board V2. The V1 Repeater Boards are simply identified as Repeater Board (No V number at all). If only Repeater Board V2 is installed, the system can support up to two domains per partition. It should, however, be noted that there may be some performance implications when creating two domains per partition when using US-IV+. For further details review FAB 1017415.1... https://support.us.oracle.com/oip/faces/secure/km/DocumentDisplay.jspx?id=1017415.1 @Modification History @Date: 08-MAY-2007
Previously Published As 101900 Internal Comments None. Related Information
Internal Contributor/submitter [email protected], [email protected] Internal Eng Business Unit Group KE Authors Internal Eng Responsible Engineer [email protected] Internal Services Knowledge Engineer [email protected] Internal Kasp FAB Legacy ID 101900 Internal Sun Alert & FAB Admin Info Critical Category: Significant Change Date: 2007-01-22 Avoidance: Service Procedure Responsible Manager: null Original Admin Info: WF - received email from SSH folks that someone noticed this FAB was referenced in the SSH with a link, but the link did not work. Looking at the FAB determined it was never released and did not list who the submitter or Eng contact were. I looked through all submission emails and determined who these folks were and got their approval to publish this FAB as is. (1/22/07) - Joe WF - changes to Synopsis, Issue Description and Corretive Action sections per Nathan Kroenert and Roy Stiles. - Joe 5/8/07 Product_uuid 29d3a694-0a18-11d6-92da-df959df44cdd|Sun Fire 4800 Server 29da7938-0a18-11d6-8a41-9ed1ad6d6779|Sun Fire 6800 Server 4fe39727-0599-11d8-84cb-080020a9ed93|Sun Fire E6900 Server bed24aa9-0598-11d8-84cb-080020a9ed93|Sun Fire E4900 Server Attachments This solution has no attachment |
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