topic Re: Problem whit disk /HBA in Operating System - HP-UX

Problem whit disk /HBA

Eli Daniel — Wed, 12 Jan 2011 16:23:01 GMT

Good morning

I wanted to share with you this question:

In the server HP-UX 11.31 ia64, assign 10 disk via SYMMETRIX (SAM)

The run command ioscan -fnC see 40 disk via SYMETRIX.

The personal EMC assign only 10 disk:
Device Cap(MB) Attr Dir:P
------ ------- ---- ----
205F 153601 (M) 8B:1, 9B:1
2065 153601 (M) 8B:1, 9B:1
206B 153601 (M) 8B:1, 9B:1
2071 153601 (M) 8B:1, 9B:1
2077 153601 (M) 8B:1, 9B:1
207D 153601 (M) 8B:1, 9B:1
2083 153601 (M) 8B:1, 9B:1
2089 153601 (M) 8B:1, 9B:1
2810 153601 (M) 8B:1, 9B:1
2863 153601 (M) 8B:1, 9B:1

The server is installed 4 HBA
sinfra905:/>ioscan -fnCfc
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
fc 0 0/0/0/5/0/0/0 fcd CLAIMED INTERFACE HP 451871-B21 8Gb Dual Port PCIe Fibre Channel Mezzanine (FC Port 1)
/dev/fcd0
fc 1 0/0/0/5/0/0/1 fcd CLAIMED INTERFACE HP 451871-B21 8Gb Dual Port PCIe Fibre Channel Mezzanine (FC Port 2)
/dev/fcd1
fc 2 1/0/0/5/0/0/0 fcd CLAIMED INTERFACE HP 451871-B21 8Gb Dual Port PCIe Fibre Channel Mezzanine (FC Port 1)
/dev/fcd2
fc 3 1/0/0/5/0/0/1 fcd CLAIMED INTERFACE HP 451871-B21 8Gb Dual Port PCIe Fibre Channel Mezzanine (FC Port 2)
/dev/fcd3

The question is:
how to distinguish or view only the 10 disk??

Because there are more than 10 disk in the server??

Anex ioscan

Re: Problem whit disk /HBA

Torsten. — Wed, 12 Jan 2011 16:25:04 GMT

Use

# ioscan -m dsf

or

# ioscan -fN

Re: Problem whit disk /HBA

Zinky — Wed, 12 Jan 2011 16:38:07 GMT

You're not using PowerPath right?

Symmetrix should be supported in 11.31's mass storage stack/native multipathing. Are you familiar with persistent dsf or agile device naming?

ioscan -m dsf

will show the agile (multipathed) /dev/rdisk/diskNNN and the legacy device paths /dev/rdsk/cXtYdZ (aka subpaths).

If you have the SCSI Inquire EMC tool it will also help.

Re: Problem whit disk /HBA

Eli Daniel — Wed, 12 Jan 2011 18:42:16 GMT

Hi Torste, anex the ioscan

Re: Problem whit disk /HBA

Eli Daniel — Wed, 12 Jan 2011 18:56:45 GMT

No, the version Power path have conflict whit HP-UX 11.31.
The load balancing should used for Operation System. 11.31 have Multipathing.

I need view the disk real.

how can view only 10 disk???

Re: Problem whit disk /HBA

Vivek Bhatia — Wed, 12 Jan 2011 19:00:47 GMT

Hi,

Please find the commands below to find out the disks.

# ioscan -m dsf
# ioscan -fN

#powermt display dev=all

#/usr/local/bin/inq -clariion

You can run scsimgr to verify the

[root@totoro] / # scsimgr get_attr -D /dev/rdisk/disk30 -a serial_number

SCSI ATTRIBUTES FOR LUN : /dev/rdisk/disk30

name = serial_number
current = "100123CED000"
default =
saved =

"100123CED000" -Last three digits are the LUN ID included in the serial number.

This will help you to cross verify the the information on two disks.As this might be a bug if you have not mapped more than 10 disks to the server.

The output given by you show disks far more than 10 disks.

Thanks
Vivek Bhatia

Re: Problem whit disk /HBA

Zinky — Wed, 12 Jan 2011 19:05:02 GMT

What kind of EMC Symmterix is this?

Your ioscan -m dsf output does not seem to show that your agile/dsf devices are multipathed at all.

Do you Have EMC's SCSI inquire utility sir?

The binary is usually called inq or inquire

Re: Problem whit disk /HBA

Eli Daniel — Wed, 12 Jan 2011 19:35:09 GMT

Generic Status Information

SCSI services internal state = UNOPEN
Device type = Direct_Access
EVPD page 0x83 description code = 0
EVPD page 0x83 description association = 0
EVPD page 0x83 description type = 0
World Wide Identifier (WWID) = N/A
Serial number = "101770!"H000"
Vendor id = "EMC "
Product id = "SYMMETRIX "
Product revision = "5772"
Other properties = ""
SPC protocol revision = 2
Open count (includes chr/blk/pass-thru/class) = 0
Raw open count (includes class/pass-thru) = 0
Pass-thru opens = 0
LUN path count = 1
Active LUN paths = 1
Standby LUN paths = 0
Failed LUN paths = 0
Maximum I/O size allowed = 2097152
Preferred I/O size = 2097152
Outstanding I/Os = 0
I/O load balance policy = round_robin
Path fail threshold time period = 0
Transient time period = 120
Tracing buffer size = 1024
LUN Path used when policy is path_lockdown = NA
LUN access type = NA
Asymmetric logical unit access supported = No
Asymmetric states supported = NA
Preferred paths reported by device = No
Preferred LUN paths = 0

Re: Problem whit disk /HBA

Vivek Bhatia — Wed, 12 Jan 2011 19:37:56 GMT

What output is this?

Re: Problem whit disk /HBA

Eli Daniel — Wed, 12 Jan 2011 19:42:26 GMT

the out is:

STATUS INFORMATION FOR LUN : /dev/rdisk/disk52

Re: Problem whit disk /HBA

Zinky — Wed, 12 Jan 2011 20:02:43 GMT

Isn't the EMC Symmetrix 5000 Series a VERY OLD array? And from the looks of the support matrix here http://www.hp.com/products1/serverconnectivity/mass_storage_devices.html#EMCiSCSI - it does not seem 11.31 supports it.

That is whty your info on the disk in scsimgr does not show multipaths sir...

Now I don't know if you can still safely use the legacy devices and just use PVLINKs. It may work -- but likely unsupported.

Re: Problem whit disk /HBA

Zinky — Wed, 12 Jan 2011 20:15:38 GMT

Here is EXAMPLE of a correctly multipathed disk (In this case an HP XP24K LUN presenetd on 4 CHAs/FC-Paths:

ioscan -m dsf:

/dev/rdisk/disk28 /dev/rdsk/c78t0d0
/dev/rdsk/c82t0d0
/dev/rdsk/c84t0d0
/dev/rdsk/c80t0d0

scsimgr Device Info:

root@fhprod12 # scsimgr get_info -D /dev/rdisk/disk28|more

STATUS INFORMATION FOR LUN : /dev/rdisk/disk28

Generic Status Information

SCSI services internal state = ONLINE
Device type = Direct_Access
EVPD page 0x83 description code = 1
EVPD page 0x83 description association = 0
EVPD page 0x83 description type = 3
World Wide Identifier (WWID) = 0x60060e8004753f000000753f0000001e
Serial number = "30015 "
Vendor id = "HP "
Product id = "OPEN-V-CM "
Product revision = "5001"
Other properties = ""
SPC protocol revision = 2
Open count (includes chr/blk/pass-thru/class) = 28
Raw open count (includes class/pass-thru) = 28
Pass-thru opens = 0
LUN path count = 4
Active LUN paths = 4
Standby LUN paths = 0
Failed LUN paths = 0
Maximum I/O size allowed = 2097152
Preferred I/O size = 2097152
Outstanding I/Os = 0
I/O load balance policy = round_robin
Path fail threshold time period = 0
Transient time period = 120
Tracing buffer size = 1024
LUN Path used when policy is path_lockdown = NA
LUN access type = NA
Asymmetric logical unit access supported = No
Asymmetric states supported = NA
Preferred paths reported by device = No
Preferred LUN paths = 0

Note LUN Path counts...

Re: Problem whit disk /HBA

Torsten. — Thu, 13 Jan 2011 05:49:48 GMT

You should only use the native multipathing, no powerpath. IMHO this is the reason for trouble here.

Re: Problem whit disk /HBA

Eli Daniel — Thu, 13 Jan 2011 13:44:36 GMT

Hi torsten, exactly

i need used ative multipathing, but I think so no compatiblity the EMC Symetrix whit Opeartion System.

I dont can install powerpath. HP-UX 11.31 and version power path have problem, the server crash constantly.

Re: Problem whit disk /HBA

Eli Daniel — Thu, 13 Jan 2011 13:46:20 GMT

Anex information for EMC administrator

Symmetrix ID : 000290101770

Database Type : Type6
Last updated at : 04:03:17 PM on Wed Jan 12,2011

Director Identification : FA-8B
Director Port : 1

Originator Port wwn : 50014380072b6e38
Type : Fibre
User-generated Name : sinfra411/hba1
Visibility : No
FCID Lockdown : No
Lun Offset : No
Heterogeneous Host : No
Port Flag Overrides : Yes
Enabled : SPC2_Protocol_Version(SPC2)
Disabled : N/A
Dynamic Addressing : No
Authentication State : N/A
Devices : 205F 2065 206B 2071 2077 207D 2083 2089
2810 2863

Re: Problem whit disk /HBA

Eli Daniel — Thu, 13 Jan 2011 15:16:48 GMT

How to see Device:
205F 2065 206B 2071 2077 207D 2083 2089
2810 2863

Whit HP-UX 11.31 dont no show these parameters??

Re: Problem whit disk /HBA

Zinky — Thu, 13 Jan 2011 15:16:50 GMT

See my last 2 posts.

Your EMC does not appear to be recognised, multipathed by 11.31's mass storage stack. Yor disk info shows it clearly... if it did - it should show 4 paths. And it is not

Bottom line.. you likely HAVE an old Symmetrix 5000 series that IS not supported by 11.31's multipathing routines....

Re: Problem whit disk /HBA

Eli Daniel — Thu, 13 Jan 2011 15:20:46 GMT

Thanks Alzhy, the information exist in link??

where can find information?? (www.docs.hp.com)

Re: Problem whit disk /HBA

Zinky — Thu, 13 Jan 2011 15:22:39 GMT

http://www.hp.com/products1/serverconnectivity/mass_storage_devices.html#EMCiSCSI

Ask your EMC person. Is the array an old 5000 Series!

If it is -- then it is likely UNSUPPORTED in 11.31

You can still however try using it - via PVLINKS but DO test if PVLINKS work.

Re: Problem whit disk /HBA

Eli Daniel — Thu, 13 Jan 2011 15:38:22 GMT

The hardware is:

Blade870C i2
HP-UX 11.31 ia64bits

SYSREV

Revisions Active Pending Bay 7 Bay 8
---------------------------------------------------------
iLO FW : 01.01.02 01.01.02 01.01.02
System FW : 01.08 01.08 01.08
MHW FPGA : 01.12 01.12 01.12
Power Mon FW : 03.04 03.04 03.04
Front Panel HW : 04.00 04.00 04.00
PRS HW : 02.07 02.07 02.07
IOH HW : 02.02 02.02 02.02