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Re: LVM: WARNING: VG 64 0x060000: LV 1: Some I/O requests to this LV are waiting

 
Thammi Venkateswarlu
Occasional Contributor

LVM: WARNING: VG 64 0x060000: LV 1: Some I/O requests to this LV are waiting

Hello,
Today i received this warnig alert,i found related hard disk but further more i didn't find any information like diskinfo,pvdisplay,and even though i do not find in lvmtab file.
My question is How i received this warnig alert without disk information?please let me know.

please find the below out put.

# ll /dev/dsk |grep 0x060000

brw-r----- 1 bin sys 31 0x060000 Jun 13 2006 c6t0d0

[PRODUCTION : root: /]

# pvdisplay -v /dev/dsk/c6t0d0|more

pvdisplay: Couldn't find the volume group to which

physical volume "/dev/dsk/c6t0d0" belongs.

pvdisplay: Cannot display physical volume "/dev/dsk/c6t0d0".

[PRODUCTION : root@ : /]

# diskinfo /dev/rdsk/c6t0d0

diskinfo: can't open /dev/rdsk/c6t0d0: No such device or address

[PRODUCTION : root@ : /]

# strings /etc/lvmtab

/dev/vg00

/dev/dsk/c2t1d0s2

/dev/dsk/c3t0d0s2

/dev/vgORA

/dev/dsk/c16t2d2

/dev/dsk/c18t2d2

/dev/dsk/c16t2d3

/dev/dsk/c18t2d3

/dev/dsk/c16t2d4

/dev/dsk/c18t2d4

/dev/vgPOVMS20

/dev/dsk/c16t2d5

/dev/dsk/c18t2d5

/dev/vgPOVMS21

/dev/dsk/c16t2d6

/dev/dsk/c18t2d6

/dev/vgPOVMS22

/dev/dsk/c16t2d7

/dev/dsk/c18t2d7

/dev/vgPOVMS23

/dev/dsk/c16t3d0

/dev/dsk/c18t3d0

/dev/vgRPOVMS2

/dev/dsk/c11t0d0

/dev/dsk/c15t0d0

/dev/dsk/c10t0d0

/dev/dsk/c10t0d1

/dev/dsk/c14t0d1

/dev/dsk/c11t0d1

/dev/dsk/c15t0d1

/dev/dsk/c14t0d0

[PRODUCTION : root@
2 REPLIES 2

Re: LVM: WARNING: VG 64 0x060000: LV 1: Some I/O requests to this LV are waiting

The 0x060000 isn't referring to a disk device with that minor number, but to an LV in a VG with that minor number - so look at the minor numbers of your VG group files to determine which one has minor number 0x060000 and then look at lvol1 in that VG:

ll /dev/*/group

would be a good start to find out...

HTH

Duncan

I am an HPE Employee
Accept or Kudo
Emil Velez
Honored Contributor

Re: LVM: WARNING: VG 64 0x060000: LV 1: Some I/O requests to this LV are waiting


it is VG 06 LV 1 (you need to decode the name for the LV and VG).

Evidently you are overtaxing your storage and it does not seem to be able to keep up. You might want to turn on immediate reporting using scsictl or look at measureware and see what your Disk queues and LV queues look like during that time.