HPUX 11.11 and MSA1000

[Sathya Sastry]

Hi Gurus,

I have a system as follows:
HP-UX carkdsa1 B.11.11 U 9000/800 431264013 unlimited-user license

Connected to a 4/8 SAN switch, which is connected to a MSA 1000.

I have only one pair of fiber from my system (has only one FC port) to SAN switch and one pair of Fiber from SAN switch to MSA.

With this configuration, I expect one device file for each LUN created on the MSA 1000.

But I see two for each LUN created on MSA1000.

ioscan -fnC disk is as follows:

disk 3 0/3/1/0.1.7.0.0.0.2 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c4t0d2 /dev/rdsk/c4t0d2
disk 6 0/3/1/0.1.7.0.0.0.3 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c4t0d3 /dev/rdsk/c4t0d3
disk 8 0/3/1/0.1.7.0.0.0.4 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c4t0d4 /dev/rdsk/c4t0d4
disk 9 0/3/1/0.1.7.0.0.0.5 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c4t0d5 /dev/rdsk/c4t0d5
disk 12 0/3/1/0.1.7.0.0.0.6 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c4t0d6 /dev/rdsk/c4t0d6
disk 4 0/3/1/0.1.7.255.0.0.2 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c5t0d2 /dev/rdsk/c5t0d2
disk 5 0/3/1/0.1.7.255.0.0.3 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c5t0d3 /dev/rdsk/c5t0d3
disk 7 0/3/1/0.1.7.255.0.0.4 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c5t0d4 /dev/rdsk/c5t0d4
disk 10 0/3/1/0.1.7.255.0.0.5 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c5t0d5 /dev/rdsk/c5t0d5
disk 11 0/3/1/0.1.7.255.0.0.6 sdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME
/dev/dsk/c5t0d6 /dev/rdsk/c5t0d6

I am not able to understand 0.1.7.0 and 0.1.7.255 paths.

Can someone help me understand and how to correct this?

[Prashanth.D.S]

Hi Sathya,

Installing PHKL_30257 should resolve your issue. Check the release note for more details...

Best Regards,
Prashanth

[Steven E. Protter]

Shalom,

Make sure the firmware of the MSA-1000 is up to date as well, especially if you ever plan to have mulitple HP-UX servers connected to it.

SEP

[Sathya Sastry]

The MSA firmware version is as follows:

Firmware version: 4.48 build 342
Hardware Revision: a [AutoRev: 0x010000]
Internal EMU Rev: 1.86 (SGM0626ARK)

Regards,
Sathya.

[Michael Steele_2]

Execute fcmsutil to determine your SAN environment because it looks like Direct Fabric.

ioscan -funC fc
ioscan -H 0/3/1/0

fcmsutil /dev/td? devstat all

Direct Fabric Attach Device
0/3/1/0.1.7.255.0.0.5

0/3/1/0 = adapter (* HBA, /dev/td# *)
.1 = domain
.7= area
.255 = port
.0 = bus
.0 = target
.5 = lun

And you're saying the switch ports are 255 and 0? So I'd look at the switch and verify its zone configuration. Hard, soft..

[Sathya Sastry]

I have later patch installed on the server.

# swlist -l product | grep -i mass
FCMassStorage B.11.11 Fibre Channel Mass Storage
PHKL_33066 1.0 Fibre Channel Mass Storage Patch

Any other thoughts?

I configured LUNs as Raid 5.

Any other information that helps?

Regards,
Sathya.

[Sathya Sastry]

# ioscan -funC fc
Class I H/W Path Driver S/W State H/W Type Description
=================================================================
fc 0 0/3/1/0 td CLAIMED INTERFACE HP Tachyon XL2 Fibre Channel Mass Storage Adapter
/dev/td0


# ioscan -H 0/3/1/0
H/W Path Class Description
==============================================================
0/3/1/0 fc HP Tachyon XL2 Fibre Channel Mass Storage Adapter
0/3/1/0.1 fcp FCP Domain
0/3/1/0.1.7.0.0 ext_bus FCP Array Interface
0/3/1/0.1.7.0.0.0 target
0/3/1/0.1.7.0.0.0.0 ctl COMPAQ MSA1000
0/3/1/0.1.7.0.0.0.2 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.0.0.0.3 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.0.0.0.4 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.0.0.0.5 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.0.0.0.6 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.255.0 ext_bus FCP Device Interface
0/3/1/0.1.7.255.0.0 target
0/3/1/0.1.7.255.0.0.0 ctl COMPAQ MSA1000
0/3/1/0.1.7.255.0.0.2 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.255.0.0.3 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.255.0.0.4 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.255.0.0.5 disk COMPAQ MSA1000 VOLUME
0/3/1/0.1.7.255.0.0.6 disk COMPAQ MSA1000 VOLUME

I have attached fcmsutil output.

I could not find what's wrong from these outputs.

About switch, I am not sure what exactly you are refering to. Little more details would help.

Regards,
Sathya.

[Sathya Sastry]

I checked the switch, there are no zones configured. Does this make the difference?

Regards,
Sathya.

[Michael Steele_2]

Please paste in:

fcmsutil /dev/td#

Need the topology

[V.Manoharan]

Hi sathya,
This is a known issue with MSA series storage. Please check the two things.

1. check the profile of the MSA whether it is set for HP UNIX OS.(you need to connect to the serial port of the msa. for setting the profile please check the mannual)

2. Update the latest Fiber channel patch.

Thanks and regards
V.Manoharan

[Sathya Sastry]

Here is the output of fcmsutil command.

Thu Aug 17 20:22:10 2006
Device Statistics for Nport_id 0x010700

Successful opens of the device 24
Failed Open of previously opened device 0
Fast failure of the Open 0
PLOGIs sent to the device 17
PLOGIs Timedout 0
PRLIs sent to the device 17
PRLIs Timedout 0
Bad PRLI resps 0
PRLOs received 0
ADISCs sent to the device 0
ADISCs Timedout 0
Authentication failures 0
LOGOs sent to the device 17
LOGOs Timedout 0
LOGOs received 0
Target resets sent 0
Target resets failed 0
Implicit Logouts on the device 0
Bad TPRLO resp 0

PLOGI Resps error statistics ...
LS_RJTs recvd for PLOGI/PDISC sent 0
Short PLOGI Resps recvd 0
Low supported version higher than FC-PH-3 0
High supported version lower than FC-PH 4.3 0
No Class3 support 0
PWWN authentication failure 0
NWWN authentication failure 0
PLOGI retries in state dvs_open_plogi_delay 0

I/O Statistics ...
Assisted I/O requests 840
Timedout I/Os 0
No CDB available for I/O 0
2nd Level Error Recovery 0

I/O Completion Statistics ...
Good I/O completions 16
Read underflows 824
Link Failure During FCP_RSP 0
FCP_RSP Overflow 0
Outbound Error For FCP_CMND 0
No resource For IO 0
Channel transient conditions 0
Channel/Device not Online 0
Implicit aborts 0
I/Os aborted 0

I/O Inbound Error Statistics ...
PLDA Non-Compliance 0
Unassisted FCP_RSP 0
Unassisted FCP_DATA 0
Bad Unassisted FCP_DATA 0
Unassisted FCP_CMND 0
UA FCP With Bad OX_ID 0
UA FCP With Bad F_CTL 0
Bad FCP_XFER_RDY 0
FCP_XFER_RDY and SEST invalid 0
FCP_XFER_RDY in invalid state 0
Bad Length For FCP_RSP Frame 0
FCP_RSP in invalid state 0
Bad Category For FCP Frame 0
Bad data_ro In FCP_XFER_RDY 0
Late ABTS Responses Received 0
BA_RJT for ABTS received 0
Bad responses to ABTS 0
IO Underruns 0

Other I/O Event Statistics ...
Unassisted FCP_XFER_RDY 0
Retries For Resources 0
Host Programming Errors 0
I/O Overflow Errors 0
LKF On Outbound Sequence 0
ASN On Outbound Sequence 0
Frame TimeOut Errors 0
Unexpected OCMs for I/Os 0
New I/Os on ERQ At LDN 0
I/Os on SLL At LDN 0
LUP Events For I/O 0
ABTS Sent 0
ABTS Resent 0
Unaccepted ABTS 0
LDNs Before Sending ABTS 0
LUPs For Sending ABTS 0
IFCM While Aborting I/O 0
FCP_RSP While Aborting I/O Requests 0
RRQ sent 0
RRQ send failures 0
RRQ replies recvd 0
-------------------------------------------------------------