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тАО10-28-2009 06:32 AM
тАО10-28-2009 06:32 AM
All LUNs reporting being in a degraded state
I've just installed 11iv3 update 5 on a rp7420 box connected to a Clariion CX3-20.
I've started SMH and all the LUNs have a "minor" alarm, they are all in a "degraded state" but I can't find the cause for this alarm:
root@porsx022:/# /opt/propplus/bin/cprop -detail -c "Disk Drive"|more
[Component]: Disk Drive
[Table]: Disk Drive
-------------------------------------------------------
[Instance]: 1
****************************************************
[Hash ID]: Disk Drive:112571928
< ClassName:HP_DiskDrive NameSpace:root/cimv2 >
[Caption]: SCSI Disk
[Description]: This is a Disk with following details: Vendor ID: HP 73.4G SCSI Disk Product ID: MAX3073NC@1/0/0/3/0.6.0
[ElementName]: Hard Disk
[Name]: Hard Disk
[OperationalStatus]: 2
[StatusDescriptions]: The status of the disk is ok
[EnabledState]: Not Applicable
[RequestedState]: No Change
[EnabledDefault]: Enabled
[SystemCreationClassName]: CIM_ComputerSystem
[SystemName]: porsx022
[CreationClassName]: HP_DiskDrive
[DeviceID]: 1/0/0/3/0.6.0
[MaxMediaSize]: 71687168
[DefaultBlockSize]: 512
[LegacyHardwarePath]: 1/0/0/3/0.6.0
[AgileHardwarePath]: 64000/0xfa00/0x0
[SerialNumber]: X1025532 0629
[ProductId]: MAX3073NC
[VendorId]: HP 73.4G
[DiskFWRevision]: HPC1
[Capacity]: 68.0
****************************************************
[Instance]: 2
****************************************************
[Hash ID]: Disk Drive:826154513
< ClassName:HP_DiskDrive NameSpace:root/cimv2 >
[Caption]: SCSI Disk
[Description]: This is a Disk with following details: Vendor ID: DGC SCSI Disk Product ID: CX3-20WDR5@1/0/14/1/0.8.0.0.0.0.0
[ElementName]: Hard Disk
[Name]: Hard Disk
[OperationalStatus]: 3
[StatusDescriptions]: The disk is in degraded state
[EnabledState]: Not Applicable
[RequestedState]: No Change
[EnabledDefault]: Enabled
[SystemCreationClassName]: CIM_ComputerSystem
[SystemName]: porsx022
[CreationClassName]: HP_DiskDrive
[DeviceID]: 1/0/14/1/0.8.0.0.0.0.0
[MaxMediaSize]: 157286400
[DefaultBlockSize]: 512
[LegacyHardwarePath]: 1/0/14/1/0.8.0.0.0.0.0
[AgileHardwarePath]: 64000/0xfa00/0x4
[SerialNumber]: CK200063700776
[ProductId]: CX3-20WDR5
[VendorId]: DGC
[DiskFWRevision]: HP03
[Capacity]: 150.0
****************************************************
[Instance]: 3
****************************************************
[Hash ID]: Disk Drive:2203307906
< ClassName:HP_DiskDrive NameSpace:root/cimv2 >
[Caption]: SCSI Disk
[Description]: This is a Disk with following details: Vendor ID: DGC SCSI Disk Product ID: CX3-20WDR5@1/0/14/1/0.8.0.0.0.0.1
[ElementName]: Hard Disk
[Name]: Hard Disk
[OperationalStatus]: 3
[StatusDescriptions]: The disk is in degraded state
[EnabledState]: Not Applicable
[RequestedState]: No Change
[EnabledDefault]: Enabled
[SystemCreationClassName]: CIM_ComputerSystem
[SystemName]: porsx022
[CreationClassName]: HP_DiskDrive
[DeviceID]: 1/0/14/1/0.8.0.0.0.0.1
[MaxMediaSize]: 157286400
[DefaultBlockSize]: 512
[LegacyHardwarePath]: 1/0/14/1/0.8.0.0.0.0.1
[AgileHardwarePath]: 64000/0xfa00/0x5
[SerialNumber]: CK200063700776
[ProductId]: CX3-20WDR5
[VendorId]: DGC
[DiskFWRevision]: HP03
[Capacity]: 150.0
****************************************************
[Instance]: 4
****************************************************
[Hash ID]: Disk Drive:3580461299
< ClassName:HP_DiskDrive NameSpace:root/cimv2 >
[Caption]: SCSI Disk
[Description]: This is a Disk with following details: Vendor ID: DGC SCSI Disk Product ID: CX3-20WDR5@1/0/14/1/0.8.0.0.0.0.2
[ElementName]: Hard Disk
[Name]: Hard Disk
[OperationalStatus]: 3
[StatusDescriptions]: The disk is in degraded state
[EnabledState]: Not Applicable
[RequestedState]: No Change
[EnabledDefault]: Enabled
[SystemCreationClassName]: CIM_ComputerSystem
[SystemName]: porsx022
[CreationClassName]: HP_DiskDrive
[DeviceID]: 1/0/14/1/0.8.0.0.0.0.2
[MaxMediaSize]: 157286400
[DefaultBlockSize]: 512
[LegacyHardwarePath]: 1/0/14/1/0.8.0.0.0.0.2
[AgileHardwarePath]: 64000/0xfa00/0x6
[SerialNumber]: CK200063700776
[ProductId]: CX3-20WDR5
[VendorId]: DGC
[DiskFWRevision]: HP03
[Capacity]: 150.0
****************************************************
I've checked syslog for errors but didn't find anything relevant...all LUNs are "CLAIMED" when I run ioscan:
root@porsx022:/# ioscan -N -fnCdisk|more
Class I H/W Path Driver S/W State H/W Type Description
===================================================================
disk 64 64000/0xfa00/0x0 esdisk CLAIMED DEVICE HP 73.4GMAX3073NC
/dev/disk/disk64 /dev/rdisk/disk64
disk 65 64000/0xfa00/0x1 esdisk CLAIMED DEVICE _NEC DVD_RW ND-3550A
/dev/disk/disk65 /dev/rdisk/disk65
disk 66 64000/0xfa00/0x4 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk66 /dev/rdisk/disk66
disk 67 64000/0xfa00/0x5 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk67 /dev/rdisk/disk67
disk 68 64000/0xfa00/0x6 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk68 /dev/rdisk/disk68
disk 69 64000/0xfa00/0x7 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk69 /dev/rdisk/disk69
disk 70 64000/0xfa00/0x8 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk70 /dev/rdisk/disk70
disk 71 64000/0xfa00/0x9 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk71 /dev/rdisk/disk71
disk 72 64000/0xfa00/0xa esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk72 /dev/rdisk/disk72
disk 73 64000/0xfa00/0xb esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk73 /dev/rdisk/disk73
disk 74 64000/0xfa00/0xc esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk74 /dev/rdisk/disk74
disk 75 64000/0xfa00/0xd esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk75 /dev/rdisk/disk75
disk 76 64000/0xfa00/0xe esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk76 /dev/rdisk/disk76
disk 77 64000/0xfa00/0xf esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk77 /dev/rdisk/disk77
disk 78 64000/0xfa00/0x10 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk78 /dev/rdisk/disk78
disk 79 64000/0xfa00/0x11 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk79 /dev/rdisk/disk79
disk 80 64000/0xfa00/0x12 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk80 /dev/rdisk/disk80
disk 81 64000/0xfa00/0x13 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk81 /dev/rdisk/disk81
disk 82 64000/0xfa00/0x14 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk82 /dev/rdisk/disk82
disk 83 64000/0xfa00/0x15 esdisk CLAIMED DEVICE DGC CX3-20WDR5
/dev/disk/disk83 /dev/rdisk/disk83
disk 84 64000/0xfa00/0x16 esdisk CLAIMED DEVICE DGC CX3-20WDR5
Any ideias where I should look for the root cause of this "degraded state"?
Thank you!
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тАО10-28-2009 06:38 AM
тАО10-28-2009 06:38 AM
Re: All LUNs reporting being in a degraded state
- are all the LUNs presented to HP-UX 11.31 system configured in failover mode 4 (ALUA)
Those are what most folks get wrong when attaching HP-UX 11.31 systems to Clariion
HTH
Duncan
I am an HPE Employee
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тАО10-28-2009 06:54 AM
тАО10-28-2009 06:54 AM
Re: All LUNs reporting being in a degraded state
-Yes, the flare was just upgraded to FL26.
-How can I check if the LUNs are configured in "failover" mode? Is this the only option or can I have "load balancig" between HBAs?
Thanks!
Pedro
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тАО10-28-2009 06:57 AM
тАО10-28-2009 06:57 AM
Re: All LUNs reporting being in a degraded state
check this command : scsimgr
mikap
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тАО10-28-2009 07:01 AM
тАО10-28-2009 07:01 AM
Re: All LUNs reporting being in a degraded state
This is not a HP-UX setting - its a setting on the Clariion for the LUNs - I don't know how you check it... I suggest you consult the HP-UX connectivity guide from EMC...
The Clarrion is an ALUA (Asymmetric Logical Unit Access) array, and a s such each LUN is generally accessed through only the ports on one controller at any one time - different LUNs might be accessed via differemt controllers, but all IOs afor any given LUN are serviced by only 1 contoller at a time...
HTH
Duncan
I am an HPE Employee
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тАО10-28-2009 07:09 AM
тАО10-28-2009 07:09 AM
Re: All LUNs reporting being in a degraded state
From the HP-UX side I've checked the settings:
root@porsx022:/tmp# scsimgr get_attr -D /dev/rdisk/disk96
Driver esdisk Attributes :
name = capacity
current = 1214624768
default =
saved =
name = block_size
current = 512
default =
saved =
name = path_fail_secs
current = 120
default = 120
saved =
name = load_bal_policy
current = round_robin
default = round_robin
saved =
name = infinite_retries_enable
current = false
default = false
saved =
name = preferred_path
current =
default =
saved =
name = alua_enabled
current = true
default = true
saved =
This last line means that the ALUA is enabled on the CX3-20 or this is just the setup from the OS side?
Thanks!
Pedro
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тАО10-28-2009 08:14 AM
тАО10-28-2009 08:14 AM
Re: All LUNs reporting being in a degraded state
if its a clarion setting, so you should conneccdt to the storage processor of the clariion and them change it.
mikap
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тАО12-22-2009 07:37 AM
тАО12-22-2009 07:37 AM
Re: All LUNs reporting being in a degraded state
Thanks,
Bob
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тАО12-22-2009 10:52 AM
тАО12-22-2009 10:52 AM
Re: All LUNs reporting being in a degraded state
There were patches for EMS on earlier versions of HP-UX to avoid this reporting. A workaround is to disable monitoring of those Clariion LUNs.