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EVA4400 seems to hang and Levelling is taking tooo Looong !!!?

Yaboto
Super Advisor

EVA4400 seems to hang and Levelling is taking tooo Looong !!!?

Hi,

 

While working, we restarted a server and it was taking too long to mount a
file system that is on the EVA2. We check the event log on the EVA and
realized there is one particular event the read "A physical disk drive has
reported a check condition error."

The details of the error log leads to a particular disk, (dencl_num: 2,
bay: 8). However a physical check on the disk does not indicate any fault.
Meanwhile leveling was also going on, and I don't think it is advisable to
ungroup.

Please advice.

Yaboto

3 REPLIES
Johan Guldmyr
Honored Contributor

Re: EVA4400 seems to hang and Levelling is taking tooo Looong !!!?

Hi, was it only one check condition event? If so most likely this can be disregarded. Unless it was a predictive error, like a mechanical problem.

We would need the ASC/ASCQ to be able to tell what happened. You should be able to find these in the event details. 

 

ASC/ASCQ details: http://t10.org/lists/asc-num.htm

 

Could your server mount the file system quickly after a reboot?

Leveling is a background service.

If there are no other disks with check conditions then you can ungroup it.

If on the other hand there is reconstruction going on you should be very very careful.

Yaboto
Super Advisor

Re: EVA4400 seems to hang and Levelling is taking tooo Looong !!!?

Please find bellow therror message:

 

Event header details:

Event sequence number: 26681

Flags: Time_set Time_synched Primary_Ctlr

Event rev: 3

Event size: 188

Software version: 09534000

Base level: CR18CB

Ctlr model: HSV300

Ctlr handle: 0000-7-8-500508B4-000F681A-00000000-00000000

Report time: 9 Oct, 2011 16:15:22.451680

Location: 0x20189974

Event code: Type: 09 Cac: 00 Num: 02 Scid: 06

Event description: 0x06020009 Severity: Normal -- informational in nature. A physical disk drive has reported a check condition

.

Information packet rev: 07

Information packet type: 09

Information packet size: 0078

Software component: Fibre Channel Services

Corrective action: No action necessary.

Event structure details:

Information packet descriptor:

EIP09 - Fibre Channel Services Physical Disk Drive/Mirror Port Error

An error was encountered while attempting to access a physical disk drive or the mirror port.

Structure: Event

Structure: flags

time_set: TRUE - Time has been set on this HSV300 controller

time_synched: TRUE - Time has been synchronized with all HSV300 controllers in the Storage System

seq_reset: FALSE - Event sequence number reset occurred

outofsequence: FALSE - Event reported out of sequence due to Final Event Block reconciliation or lost host event

requeued: FALSE - Event requeued following restart or resynchronization

labcode: FALSE - Event reported using LAB code

prictrlr: TRUE - Event reported by primary HSV300 controller (Note: Not valid until Storage System primary HSV300 controller is elected)

spsctrlr: FALSE - Single power supply HSV300 controller

End of structure

revision: 3 [0x03] - Structure revision number

count: 188 [0x00BC] - Event specific information size in bytes

sequence_number: 26681 [0x00006839] - Sequence number assigned to the event

sw_version: 09534000 - HSV300 controller software version number string

baselevel_id: CR18CB - HSV300 controller baselevel build string

ctrlr_model_id: HSV300 - HSV300 controller model string

reporting_ctrlr: 0000-7-8-500508B4-000F681A-00000000-00000000 - Storage System Management Interface Handle of HSV300 controller that reported the event

report_time: 9 Oct, 2011 16:15:22.451680 - Time event was reported

report_location: 538483060 [0x20189974] - Location of event report call

Structure: header

Union: u

Structure: ec

eiptype: 9 [0x09] - Event Information Packet Type Code

cac: 0 [0x00] - Corrective Action Code

evnum: 2 [0x02] - Event Number

scid: 6 [0x06] - HSV300 Controller Software Component Identification

End of structure

End of union section

value: 100794377 [0x06020009] - Event Code Value

End of union

End of union

revision: 7 [0x07] - Packet revision number

type: 9 [0x09] - Packet type

count: 120 [0x0078] - Number of bytes in packet

End of structure

device: 52-B4-00-20-01-AF-06-53-00-00-00-00-00-00-00-00 - UUID of physical disk drive associated with the event

cerp_id: DP-1B - HSV300 controller enclosure rear panel Fibre Channel port attached to the physical disk drive or mirror port

exch_type: 3 [0x0003] - Frame exchange type

port: 1 [0x0001] - HSV300 controller internal Fibre Channel port number attached to the physical disk drive or mirror port

al_pa: 218 [0x000000DA] - AL_PA of the physical disk drive or mirror port

dencl_num: 2 [0x0002] - Enclosure where the physical disk drive is located

reserved: 0 [0x0000] - Reserved

rack_num: 0 [0x0000] - Rack where physical disk drive is located

bay: 8 [0x0008] - Enclosure bay where the physical disk drive is located

fed_class: 48 [0x00000030] - Fibre Channel Exchange Descriptor class

Union: cmd

bytes: 88 [0x58]0 [0x00]0 [0x00]47 [0x2F]16 [0x10]0 [0x00]0 [0x00]80 [0x50]0 [0x00]0 [0x00]0 [0x00]0 [0x00]0 [0x00]0 [0x00]0 [0x00]0 [0x00] - CDB as bytes

End of union section

lw: 788529240 [0x2F000058]1342177296 [0x50000010]0 [0x00000000]0 [0x00000000] - CDB as longwords

End of union section

Structure: cdb10

lba1: 88 [0x58] - Offset 3 -- Logical Block Address[1] byte 4

lba0: 0 [0x00] - Offset 2 -- Logical Block Address[0] byte 3

reserved: 0 [0x00] - Offset 1, Bits 0-4 -- Reserved byte 2

lun: 0 [0x00] - Offset 1, Bits 5-7 -- Logical Unit Number (obsolete method -- unused)

opcode: 47 [0x2F] - Offset 0 -- Operation Code byte 1

length0: 16 [0x10] - Offset 7 -- Length[0] byte 8

reserved6: 0 [0x00] - Offset 6 -- Reserved byte 7

lba3: 0 [0x00] - Offset 5 -- Logical Block Address[3] byte 6

lba2: 80 [0x50] - Offset 4 -- Logical Block Address[2] byte 5

padding: 0 [0x0000] - Offsets 10-11 -- Pad to longword align

control: 0 [0x00] - Offset 9 -- Control byte 10,11

length1: 0 [0x00] - Offset 8 -- Length[1] byte 9

End of structure

union_pad: - Union Element Padding (DO NOT DISPLAY!)

End of union

End of union

Union: error

bytes: 0 [0x00]1 [0x01]0 [0x00]112 [0x70]10 [0x0A]0 [0x00]0 [0x00]0 [0x00]0 [0x00]0 [0x00]0 [0x00]0 [0x00]0 [0x00]84 [0x54]1 [0x01]11 [0x0B]0 [0x00]0 [0x00]0 [0x00]0 [0x00] - Sense data as bytes

End of union section

lw: 1879048448 [0x70000100]10 [0x0000000A]0 [0x00000000]184636416 [0x0B015400]0 [0x00000000] - Sense data as longwords

End of union section

Structure: sense_data

info_0: 0 [0x00] - Byte 4

sense_key: 1 [0x01] - Byte 3

reserved_1: FALSE -

ili: FALSE -

eom: FALSE -

filemark: FALSE -

segment: 0 [0x00] - Byte 2

error_code: 112 [0x70] - Byte 1

valid: FALSE -

add_length: 10 [0x0A] - Byte 8-11

info_3: 0 [0x00] - Byte 7

info_2: 0 [0x00] - Byte 6

info_1: 0 [0x00] - Byte 5

cmd_specific: 0 [0x00]0 [0x00]0 [0x00]0 [0x00] - Byte 12-13

bit_ptr: 0 [0x00] - Byte 16

bpv: FALSE -

reserved: 0 [0x00] -

cd: FALSE -

sksv: FALSE -

fru_code: 84 [0x54] - Byte 15

Union: sns

Structure: bytes

asq: 1 [0x01] - Byte 13

 

: 11 [0x0B] - Byte 12

End of structure

End of union section

asc_asq: 2817 [0x0B01] -

End of union

End of union

big_endian_padding: 0 [0x0000] -

field_ptr: 0 [0x0000] - Byte 17

End of structure

End of union

End of union

Structure: enclosures[1]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 2 [0x02] - Enclosure number

End of structure

Structure: enclosures[0]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 3 [0x03] - Enclosure number

End of structure

Structure: enclosures[3]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 99 [0x63] - Enclosure number

End of structure

Structure: enclosures[2]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 1 [0x01] - Enclosure number

End of structure

Structure: enclosures[5]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 99 [0x63] - Enclosure number

End of structure

Structure: enclosures[4]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 99 [0x63] - Enclosure number

End of structure

Structure: enclosures[7]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 99 [0x63] - Enclosure number

End of structure

Structure: enclosures[6]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 99 [0x63] - Enclosure number

End of structure

unused: 0 [0x0000] -

Structure: enclosures[8]

rack_num: 0 [0x00] - Rack were enclosure is located

dencl_num: 0 [0x00] - Enclosure number

End of structure

bypassb: 0 [0x0000] - Mask showing bypass state for each slot in a shelf

bypassa: 0 [0x0000] - Mask showing bypass state for each slot in a shelf

drv_fw_rev: HP03 - The FW revision on the drive

End of structure

Salient data:

Event: Severity: Normal -- informational in nature. A physical disk drive has reported a check condition error.

Action: No action necessary.

Johan Guldmyr
Honored Contributor

Re: EVA4400 seems to hang and Levelling is taking tooo Looong !!!?

Cool! I haven't looked at check conditions in a raw event before. Guess the software I used before was doing its magic..

But I presume it's these entries that could help us:

sense_key: 1 [0x01] - Byte 3
asq: 1 [0x01] - Byte 13
: 11 [0x0B] - Byte 12
asc_asq: 2817 [0x0B01] -

But how to make this into understandable form such as: ASC/ASCQ? For example 11/00 for 'unrecovered read error' ? Is that what the 11 there means? I do not know..

If it's an 11/00 and you've only seen it once, then that's not enough to cause concern. It could be that you see this read error once and not again for a long time.