SF 5.1SP1 didn't discover all disks that belongs to EMC CLARiiON CX4 array.
| Article:TECH164604 | | | Created: 2011-07-13 | | | Updated: 2012-07-28 | | | Article URL http://www.symantec.com/docs/TECH164604 |
Problem
This is a new install of our product and then the following error gave out while executing the vxdisk scandisks.
-cx600_claim_device: On HP-UX 11.31, EMC CLARiiON is supported only in ALUA mode. Please configure device /dev/rdsk/c11t5d4 in ALUA mode
Moreover, No disk information at output of the vxdisk list command.
Environment
Storage Foundation(SF) 5.1 SP1
HP-UX 11.31
EMC CLARiiON CX4 960.
Cause
Output of the vxcheckasl against one correspondent device:
vxcheckasl libvxCLARiiON.sl /dev/rdsk/c113t5d0
libvxCLARiiON.sl:vendor_info()
VID : DGC
PID :
ATYPE : ALUA
ANAME : EMC_CLARiiON
NR_DEVICE : Y
ASL_VERSION : vm-5.1.100-rev-1
libvxCLARiiON.key()
ASL Name : libvxCLARiiON.sl
Feature Needed : 95
VxVM Version Needed : 51
Device : /dev/rdsk/c113t5d0
Vendor Identification : DGC
Product Identification : CX4-960WDR5
Revision Number : HP03
Serial Number : Ch2 CONTROLL >>>
cx600_claim_device: On HP-UX 11.31, EMC CLARiiON is supported only in ALUA mode. Please configure device /dev/rdsk/c113t5d0 in ALUA mode >>>
libvxCLARiiON.sl:claim_device() : SKIPPED >>>
The vxcheckasl command appreard SKIPS against the EMC CLARiiON device and SCSI inquiry for a correspondent DGC device did not show a serial number.
And, we could see that the vxconfigd debug log showed we found the LUNs and due to ASL not claiming, then disconnect the array. So, No device discovered in VxVM layer.
After checking with this customer direclty, we found out that the Initiator type of the array set to HP No Auto Trespass.
Solution
Suggested Initiator type in the array set to CLARiiON Open then, rescaneed all device, eventually VxVM discovered all devices well.
Need to check whether the following 4 conditions are meet to use with the supported our product:
- Minimum firmware: FLARE 28 (CX4)
- Initiator type: CLARiiON Open
- Failover Mode: 4
- DMP Failover mode: ALUA
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Article URL http://www.symantec.com/docs/TECH164604
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