HP A7298A Troubleshooting
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1. CSI describe of dev rdsk c20t6d0 vendor HP 36 4G product id ST336607LC type direct access size 0 Kbytes bytes per sector 512 Affected OS Versions HP UX 11 23 all revisions HP UX 11 31 all revisions Cause This problem is seen when a receive diagnostics or an inquiry command is sent to the disk when the mediainit 1 initiated format is in progress The error recovery process in the different drivers fails all commands to the media including the mediainit 1 format command due to the time out of the diagnostics inquiry command Workaround Method I Format using diagnostic format utility instead of mediainit 1 You can format using the diagnostic format utility instead of mediainit 1 by running the following commands usr sbin cstm cstm gt select path 0 2 1 1 2 0 estm gt hlic Install HP Only License This license is intended for trained HP support personnel only Enter HP Only License Password Information The HP Only license was successfully installed for this session You have access to all licensed and HP Only tools on all systems cstm gt xt Expert Tool for device SCSI Disk on path 0 2 1 1 2 0 Expert Tool version A 01 03 Use Help to get more information Disk Expert gt fu CAUTION The Format Unit command will destroy all user data on the disk drive The command can also take a long time to execute Enter Cancel Help or OK Cancel O2. K Expert tool Format Unit for device SCSI Disk on path 0 2 1 1 20u Format Options 1 Retain both Primary and Growing Defect List p_g_list 2 Retain only the Primary Defect List p_only Enter selection p_g_list The format operation on SCSI Disk at path 0 2 1 1 2 0 has been started Format command completed without errors Disk Expert gt exit Expert Tool for device SCSI Disk on path 4 0 14 1 0 4 0 8 0 255 0 0 0 Do you really want to exit Enter Cancel Help or OK OK ok Expert tool exiting cstm gt exit Exit the Support Tool Manager Are you sure you want to exit the Support Tool Manager Enter Cancel Help or OK OK ok Method II Disable Online diagnostics before executing mediainit 1 A Disable using monconfig 1M 1 Shutdown diagnostic with monconfig 2 Check if the disk monitor process disk_em is still around ps aef grep disk_em 3 Using mediainit 1 format the storage media 4 After completion of format operation re start diagnostics with monconfig etc opt resmon lbin monconfig Event Monitoring Service Monitoring Request Manager EVENT MONITORING IS CURRENTLY ENABLED EMS Version A 04 20 31 02 STM Version D 04 00 Monitoring Request Manager Main Menu Note Monitoring requests let you specify the events for monitors to report and the notification
3. Mediainit 1 format operation fails to media Problem In certain scenarios format operation initiated using the mediainit 1 command fails as the format ioctl SIOC_FORMAT issued by mediainit 1 fails to format the storage media This format failure has been seen with JBOD devices DS2405 DS2100 DS2110 DS2120 and msa30 while connected through the following interface cards but may not be limited to these cards e HP UX FC Tachlite HBAs A5158A A6795A e HP UX FC Qlogic HBAs A6826A AB465A A9782A A7538A A9784A ADI94A AB429A AB378A AB379A AB379B AB378B AD193A 403619 B21 AD300A AE311A AH401A AH400A 451871 B21 e HP UX Ultra320 HBA A7173A AB290A This issue is caused due to target not responding to Diagnostic disk monitor commands while SCSI format is in progress The error recovery of above mentioned HBA s terminates all outstanding commands on the target and hence mediainit 1 command fails This failure renders the size of the medium as zero which makes the medium unusable For example in the scenario mentioned below mediainit 1 fails to format the disk and the subsequent diskinfo 1M issued on the same disk reports the disk size as zero mediainit v dev rdsk c20t6d0 mediainit initialization process starting mediainit locking SCSI device mediainit initializing media EIA IREE NA T Says os on ayia a ate mediainit initialize media command failed diskinfo dev rdsk c20t6d0 S
4. lp n Y This may take a while EVENT MONITORING IS CURRENTLY DISABLI ea J B Disable the HPUXStorageIndicationProviderModule You can disable the HPUXStorageIndicationProviderModule by running the following command cimprovider dm HPUXStorage ndicationProviderModule After the mediainit 1 command completes the format operation re enable monitoring within the moncon fig utility and enable Providers by running the following command ndicationProviderModule cimprovider em HPUXStorage
5. methods to use Select heck detailed monitoring status ist descriptions of available monitors dd a monitoring request elete a monitoring request able Monitoring e odify an existing monitoring request n i K ill disable monitoring H elp Q uit nter selection s K Disable Monitoring SSSSSSSSSSa Hardware event monitoring watches the system for hardware problems If you shut this facility down the system will no longer be able to alert you to many hardware problems In addition if Serviceguard is configured to use hardware event monitoring to determine the health of your system then disabling monitoring may cause having failed This will resul it to consider this system as t in a package failover Type h for help to find out more about the implications of shutdown on Serviceguard Furthermore if you have used the Event Monitoring Service EMS Graphical User Interface GUI Manager SAM to configure the within the System Administration event monitors this configuration will not be saved and no actual monitoring will take place until hardware event monitoring is re enabled and you add the monitoring requests back again using the EMS GUI Event monitoring resources show up in the EMS GUI under the resourc class status Are you sure you wish to disable event monitoring Y es N o H e
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