Messages about some disks

[Waqar Razi]

I am getting ems error messages about some disk devices: Details are as follows:

CURRENT MONITOR DATA:

Event Time..........: Thu Sep 25 21:09:10 2008
Severity............: SERIOUS
Monitor.............: disk_em
Event #.............: 100472
System..............: apple.col.com

Summary:
Disk at hardware path 0/7/0/0.97.59.19.0.0.3 : Device connectivity or
hardware failure


Description of Error:

The device is not in a state where it can process requests. Manual
intervention is required.

Probable Cause / Recommended Action:

The device may have been powered off and may be being powered on.

Alternatively, one or both of the terminators on the SCSI bus may be
missing. Install the terminators in their proper locations at the ends of
the SCSI bus.

Alternatively, the SCSI cable may have become detached from the device.
Re-attach the cable.

Alternatively, the SCSI cable may have failed. Replace it.

Alternatively, the device may be in a state where it could not process
this, or any, request. Cycle power to the device.

Alternatively, there could be more than one device having the same address
on the SCSI bus. Make all the addresses on the SCSI bus unique.

Alternatively, the total length of all cable segments on the SCSI bus
exceeds 25 meters. Replace one or more cable segments until the total
length is less than this value.

Alternatively, if all of the above fail to correct the problem, the device
has experienced a hardware failure. Contact your HP support representative
to have the device checked.

Alternatively, if messages corresponding to this condition appear in the
log for more than one device on the SCSI bus, the device adapter may be in
a state from which it cannot extract itself. Perform a system shutdown,
cycle power to the computer and wait for it to reboot.

If, after reboot, messages corresponding to this condition continue to
appear in the log for this SCSI bus, contact your HP support
representative to have the adapter checked.

Additional Event Data:
System IP Address...: 206.199.230.93
Event Id............: 0x48dc363600000000
Monitor Version.....: B.01.00
Event Class.........: I/O
Client Configuration File...........:
/var/stm/config/tools/monitor/default_disk_em.clcfg
Client Configuration File Version...: A.01.00
Qualification criteria met.
Number of events..: 1
Associated OS error log entry id(s):
None
Additional System Data:
System Model Number.............: 9000/800/L1000-36
OS Version......................: B.11.00
STM Version.....................: A.30.00
EMS Version.....................: A.03.20
Latest information on this event:
http://docs.hp.com/hpux/content/hardware/ems/scsi.htm#100472

v-v-v-v-v-v-v-v-v-v-v-v-v D E T A I L S v-v-v-v-v-v-v-v-v-v-v-v-v



Component Data:
Physical Device Path...: 0/7/0/0.97.59.19.0.0.3
Device Class...........: Disk
Inquiry Vendor ID......: DGC
Inquiry Product ID.....: CX700WDR5
Firmware Version.......: HP03
Serial Number..........: APM00043701147

Product/Device Identification Information:

Logger ID.........: disc30; sdisk
Product Identifier: Disk
Product Qualifier.: DGC CX700WDR5
SCSI Target ID....: 0x00
SCSI LUN..........: 0x03

SCSI Command Data Block:

Command Data Block Contents:
0x0000: 00 00 00 00 00 00

Command Data Block Fields (6-byte fmt):
Command Operation Code...(0x00)..: TEST UNIT READY
Logical Unit Number..............: 0

Hardware Status: (not present in log record).

SCSI Sense Data:

Undecoded Sense Data:
0x0000: 70 00 02 00 00 00 00 0A 00 00 00 00 04 03 00 00
0x0010: 00 00

SCSI Sense Data Fields:
Error Code : 0x70
Segment Number : 0x00
Bit Fields:
Filemark : 0
End-of-Medium : 0
Incorrect Length Indicator : 0
Sense Key : 0x02
Information Field Valid : FALSE
Information Field : 0x00000000
Additional Sense Length : 10
Command Specific : 0x00000000
Additional Sense Code : 0x04
Additional Sense Qualifier : 0x03
Field Replaceable Unit : 0x00
Sense Key Specific Data Valid : FALSE
Sense Key Specific Data : 0x00 0x00 0x00

Sense Key 0x02, NOT READY, indicates that the logical unit addressed
cannot be accessed. Operator intervention may be required to correct
this condition.

The combination of Additional Sense Code and Sense Qualifier (0x0403)
indicates: Logical unit not ready, manual intervention required.

I am getting similar messages for some other disk devices also.

These disks are visible in ioscan -funC disk and diskinfo output, but when I did vgdisplay -v, these disks are not found to be attached to any volume group.

Can any one give me some guidance please?

[Steven E. Protter]

Shalom,

A disk failure has occurred.

You need to replace the disk if you plan to use them.

It is possible your system has detected a disk array and thinks its a disk, but I doubt it.

Its also possible that a lun was presented on the SAN and then later withdrawn.

SEP

[James R. Ferguson]

Hi Waqar:

> Logical unit not ready, manual intervention required.

Pay attention to that message. Check your cables and connections.

> These disks are visible in ioscan -funC disk and diskinfo output, but when I did vgdisplay -v, these disks are not found to be attached to any volume group.

That would be expected. The physical disk cannot be interrogated (reached). See the above.

Regards!

...JRF...

[SKR_1]

Do

ioscan -fnH 0/7/0/0.97.59.19.0.0.3

Check for the disk status.

After than do

diskinfo diskname

Run DD to check & verify I/O of the disk.

Thanks

SKR

[Torsten.]

According to the path

0/7/0/0.97.59.19.0.0.3

and the device identifier

DGC CX700WDR5

this is a LUN on SAN - not a single disk.

Check the connection, switch status, array status.