Document fcos/A0153-1
FCO #: A0153-1
SYNOPSIS: SCSI transport soft retry errors on Ultra 60 systems running external
Ultra SCSI I/O devices
DATE: FCO #: A0153-1 Aug/24/99
KEYWORDS: SCSI transport soft retry errors on Ultra 60 systems running external
Ultra SCSI I/O devices
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- Sun Proprietary/Confidential: Internal Use Only -
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FIELD CHANGE ORDER
(For Authorized Distribution by SunService)
SYNOPSIS: SCSI transport soft retry errors on Ultra 60 systems running
external Ultra SCSI I/O devices.
TOP FIN/FCO REPORT: No
PRODUCT_REFERENCE: Ultra 60 Motherboard Linfinity terminator
PRODUCT CATEGORY: Desktop / System Board ; Storage / SCSI I/O
PRODUCTS AFFECTED:
Systems Affected:
Mkt_ID Platform Model Description Serial Number
------ -------- ----- ----------- -------------
- A23 - Ultra 60 -
X-options Affected:
Mkt_ID Platform Model Description Serial Number
------ -------- ----- ----------- -------------
SG-XDSK020C-18G - - StorEdge MultiPack 18.2-GByte (2X9.1GB) 10000 RPM -
SG-XDSK020B-36G - - StorEdge MultiPack 36.4-GByte (2X18.2GB) 7200 RPM -
SG-XDSK040C-36G - - StorEdge MultiPack 36.2-GByte (4X9.1GB) 10000 RPM -
SG-XDSK040B-72G - - StorEdge MultiPack 72.2-GByte (4X18.2GB) 7200 RPM -
SG-XDSK060C-54G - - StorEdge MultiPack 54.6-GByte (6X9.1GB) 10000 RPM -
SG-XDSK060B-109G - - StorEdge MultiPack 109.2-GByte (6X18.2GB) 7200 RPM -
PART NUMBERS AFFECTED:
Part Number Description Model
----------- ----------- -----
501-4450-10 (or below) Ultra 60 motherboard -
(SCSI Devices)
Type Vendor Model SerialNumber(Min) SerialNumber(Max) Firmware
---- ------ ------- ------------------ ------------------ --------
N/A
REFERENCES:
ECO: WO_15048
LEAP: 1018
FCO: A0149-1
PROBLEM DESCRIPTION:
SCSI transport soft retry errors could occur on Ultra 60 system running
external
Ultra SCSI I/O devices. A typical error message for this failure would be as
follows:
unix: WARNING: /sbus@b,0/SUNW,fas@3,8800000 (fas1):
unix: Connected command timeout for Target 14.0
unix: WARNING: /sbus@b,0/SUNW,fas@3,8800000 (fas1):
unix: Target 14 reducing sync. transfer rate
unix: fas: Cmd dump for Target 14 Lun 0:
unix: fas: cdb=[ 0xa 0x0 0x14 0x0 0x80 0x0 ]
unix: fas: State=DATA_DONE Last State=DATA
unix: fas: pkt_state=0x7<CMD,SEL,ARB> pkt_flags=0x4000
pkt_statistics=0x61
unix: WARNING: /sbus@b,0/SUNW,fas@3,8800000/sd@e,0 (sd58):
unix: SCSI transport failed: reason 'timeout':retrying command
unix: WARNING: /sbus@b,0/SUNW,fas@3,8800000 (fas1):
unix: Connected command timeout for Target 14.0
When there is a Sun MultiPack connected to the onboard external Ultra SCSI
port,
the system gives errors in the messages file.
Below is a sample of the errors that show up in /var/adm/messages:
Jan 31 07:08:12 courses unix: WARNING: /pci@1f,4000/scsi@3,1 (glm1):
Jan 31 07:08:12 courses unix: Target 2 reducing sync. transfer rate
Jan 31 07:08:12 courses unix: WARNING: ID[SUNWpd.glm.sync_wide_backoff.6014]
Jan 31 07:08:12 courses unix: WARNING: /pci@1f,4000/scsi@3,1/sd@1,0 (sd16):
Jan 31 07:08:12 courses unix: SCSI transport failed: reason 'reset': retrying
command
Jan 31 07:08:12 courses unix:
Jan 31 07:08:12 courses unix: WARNING: /pci@1f,4000/scsi@3,1/sd@2,0 (sd17):
Jan 31 07:08:12 courses unix: SCSI transport failed: reason 'timeout': retrying
command
Jan 31 07:08:12 courses unix:
Jan 31 07:09:23 courses unix: glm1: Cmd (0x601e77a0) dump for Target 1 Lun 0:
Jan 31 07:09:23 courses unix: glm1: cdb=[ 0x8 0x0 0x6 0x0 0x80 0x0 ]
Jan 31 07:09:23 courses unix: glm1: pkt_flags=0x4000 pkt_statistics=0x61
pkt_state=0x7
Jan 31 07:09:23 courses unix: glm1: pkt_scbp=0x0 cmd_flags=0x8e0
Jan 31 07:09:23 courses unix: WARNING: /pci@1f,4000/scsi@3,1 (glm1):
Jan 31 07:09:23 courses unix: Connected command timeout for Target 1.0
Jan 31 07:09:23 courses unix: WARNING: ID[SUNWpd.glm.cmd_timeout.6017]
Jan 31 07:09:23 courses unix: WARNING: /pci@1f,4000/scsi@3,1 (glm1):
Jan 31 07:09:23 courses unix: Target 1 reducing sync. transfer rate
Jan 31 07:09:23 courses unix: WARNING: ID[SUNWpd.glm.sync_wide_backoff.6014]
Jan 31 07:09:23 courses unix: WARNING: /pci@1f,4000/scsi@3,1/sd@1,0 (sd16):
Jan 31 07:09:23 courses unix: SCSI transport failed: reason 'reset': retrying
This problem only appears when the Ultra 60 is connected to a MultiPack via the
system's external SCSI port AND configured as a raid system. During a file
transfer the Ultra 60 receives a disconnected timeout message. Device driver
traces indicate that REQs and ACKs were out of sync.
The root cause has determined the Linfinity SCSI terminators are causing jitter
on the REQ signal such that the pulse width was not meeting the SCSI specs, and
thereby causing the REQ signal not to be recognized by either the target or the
initiator.
Corrective action was implemented in Sun Manufacturing via ECO# WO_15048 on
April 5th, 1999, and in Enterprise Services via LEAP_1018 as part of the
implementation of FCO A0149-1.
IMPLEMENTATION:
---
| | MANDATORY (Fully Pro-Active)
---
---
| | CONTROLLED PRO-ACTIVE (per Sun Geo Plan)
---
---
| X | UPON FAILURE
---
REPLACEMENT TIME ESTIMATE: 30 minutes
SPECIAL CONSIDERATIONS:
CORRECTIVE ACTION:
Upon failure replace 501-4450-10 (or below) with 501-4450-12 (or above).
BILLING TYPE:
Warranty: Sun will provide parts at no charge under Warranty
Service. On-Site Labor Rates are based on how the
system was initially installed.
Contract: Sun will provide parts at no charge. On-Site Labor Rates
are based on the type of service contract.
Non Contract: Sun will provide parts at no charge. Installation by
Sun is available based on the On-Site Labor Rates
defined in the Price List.
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Implementation Footnote:
________________________
i) In case of Mandatory FCOs, Enterprise Services will attempt to contact
all known customers to recommend the part upgrade.
ii) For controlled proactive swap FCOs, Enterprise Services mission critical
support teams will initiate proactive swap efforts for their respective
accounts, as required.
iii) For Replace upon Failure FCOs, Enterprise Services partners will implement
the necessary corrective actions as and when they are required.
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