Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | |||
|
|
Solution Type Problem Resolution Sure Solution 1009755.1 : Arrays Connected to SCSI Ultra 320 HBA's Experience Sync Messages or Fail to See All Drives
PreviouslyPublishedAs 213400 Symptoms Arrays connected to a SCSI Ultra 320 LVD host bus adapter(HBA) may experience sync messages and possibly fail to see individual drives in the attached array. The /var/adm/messages file will show messages similar to: genunix: [ID 408822 kern.info] NOTICE: mpt0: fault detected in device; service still available genunix: [ID 611667 kern.info] NOTICE: mpt0: Connected command timeout for Target 1 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@5/scsi@0 (mpt0): Target 1 reverting to async. mode mpt: [ID 675377 kern.warning] WARNING: ID[SUNWpd.mpt.sync_wide_backoff.6013] genunix: [ID 408822 kern.info] NOTICE: mpt0: fault detected in device; service still available genunix: [ID 611667 kern.info] NOTICE: mpt0: Connected command timeout for Target 2 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@5/scsi@0 (mpt0): Target 2 reverting to async. mode mpt: [ID 675377 kern.warning] WARNING: ID[SUNWpd.mpt.sync_wide_backoff.6013] Resolution The problem is typically due to the use of the Ultra320 HBA on a storage subsystem that only supports SCSI Ultra160 speeds. 1. Validate the speed of the target devices using prtpicl prtpicl -v -c scsi-2 <...snip...> :target0-sync-speed 320000 <----- :target0-wide 1 :target0-TQ 1 <...snip...> 320000 is for the Ultra320. If you do not see all of your devices, or if the speed says 320000 and you are using an S1 or D240 Media tray, continue to Step 2. If the speed is set to 160000, there may be some other issue with your scsi bus. 2. Edit or Create the /kernel/drv/mpt.conf file and add the following lines and then reboot your host. Specify the parent using the sync messages above: Example: scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@5/scsi@0 (mpt0): Target 2 reverting to async. mode Use this to create the entry in mpt.conf: name="mpt" parent="/pci@1f,0/pci@5" unit-address="0" scsi-options=0x1ff8; Then reboot your host. Reference <Document: 1007761.1> What do those scsi_options in /etc/system mean? for further information on how to configure mpt.conf Product Sun StorageTek S1 Array Sun StorageTek D240 Media Tray Previously Published As 86655 mpt, mpt.conf, jasper, sunblade 100, 119850, S1, fault detected in device, reducing sync, transfer rate Change History Date: 2009-12-02 User: DeCotis Comment: Updated the entire document and removed strict references to the S1 or patches. This is a generic issue and not specific to the mpt.conf. Date: 2006-08-17 User Name: 95826 Action: Approved Comment: - fixed typo : "/kennel" replaced with "/kernel" (!!!) - verified metadata - review date ok : 2007-08-15 - checked for TM - 2 added + full product name - audience changed to contract per FvF as per http://kmo.central/howto/content/voyager-contributor-standards.html (was free) Publishing Version: 5 Attachments This solution has no attachment |
||||||||||||
|