Red Hat Enterprise Linux reports lun<nnn> has a LUN larger than allowed by the host adapter
Issue
-
The following scsi errors are reported; where <nnn> is greater than
lpfcmodule parameterlpfc_max_luns.kernel: scsi: host X channel Y id Z lun<nnn> has a LUN larger than allowed by the host adapter -
This issue can be also seen if you have a LUN ID that is greater than 255 even though you have a much fewer number of LUNs than 255.
-
After hba rescan on physical server we are unable to add new LUN. We see this error in the system logs:
scsi: host 0 channel 0 id 0 lun557 has a LUN larger than allowed by the host adapter scsi: host 1 channel 0 id 0 lun557 has a LUN larger than allowed by the host adapter -
Unable to install RHEL 6.1 on LUNs exported from SAN when LUN id value is less than FC driver's supported maximum lun id value.
ERR kernel:lpfc 0000:0f:00.0: 1:1303 Link Up Event x1 received Data: x1 xf7 x20 x0 x0 x0 0 NOTICE kernel:scsi 3:0:0:0: RAID EMC SYMMETRIX 5874 PQ: 0 ANSI: 4 WARNING kernel:scsi: host 3 channel 0 id 0 lun16384 has a LUN larger than allowed by the host adapter
Environment
- Red Hat Enterprise Linux (RHEL)
- Emulex LightPulse Fibre Channel Host Adapter (lpfc driver)
- QLogic Corp Fibre Channel to PCI Express HBA (qla driver)
- Cisco Systems Inc VIC FCoE Host Adapter (fnic driver)
- Exceptions:
- For really large lun values
- As in "...
lun4194304 has a LUN larger than allowed by the host adapter, see the inforamation in: "Red Hat Enterprise Linux reports lunXXX has a LUN larger than allowed by the host adapter, where XXX is a very large number"
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.
