A fix is available
APAR status
Closed as program error.
Error description
An SCIOLSTART of a target port may fail with EIO error if there is already an existing target_info for that target. This can happen if an SCIOLSTART is issued from an NPIV client, after the target port has been moved to another physical SAN switch port. When the request to log in to the target port is received on the VIOS, only the scsi_id value is provided. This scsi_id is the new location of the storage, versus the old, and gets treated as a new device. During device initialization, the protocol driver discovers the storage WWPN, and now finds an existing entry in its device tables. This causes a duplicate target_info structure, so the SCIOLSTART is failed back to the vfchost adapter. However, the error returned is an EIO versus an ESTALE, so the EIO error is passed back up to the client, instead of the vfchost adapter initiating recovery.
Local fix
Problem summary
IOs from the VIO client fails with EIO after changing the storage port with no LUNs started from the port.
Problem conclusion
Code changed to avoid the issue.
Temporary fix
Comments
6100-08 - use AIX APAR IV55341 6100-09 - use AIX APAR IV59967 6100-09 - use AIX APAR IV59967 7100-02 - use AIX APAR IV64209 7100-03 - use AIX APAR IV59963 7100-04 - use AIX APAR IV60214
APAR Information
APAR number
IV55341
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-02-11
Closed date
2014-04-29
Last modified date
2016-05-10
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U867301
UP15/01/18 I 1000
PTF to Fileset Mapping
U867301 devices.pci.df1000f7.com 6.1.8.20
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Document Information
Modified date:
10 May 2016