Remove "Ghost" disk from kernel

[Henry Goverde]

I was able to get the new disk recognized and added to the vg. My only issue now is that the kernel still thinks the "dead disk" is in the system and part of vg00. It will not let me re-mirror the logical volumes.

The lvmtab file only shows the 4 existing disks while SAM volume groups reports 5 disks in vg00. I am assuming that this includes the "dead (and removed) disk.

Is there a way to get the kernel to throw out the "dead disk"?

Thanks in Advance,

Henry

[Christopher McCray_1]

Hello,

Have you tried to unconfigure the disk in sam through disks and file systems --> disk devices?

Select the disk, tab --> actions --> unconfigure.

Does this help??

Chris

[James R. Ferguson]

Hi Henry:

Have a look at Technical Knowledge Base document #LVMKBRC00006257, 'Removing a "ghost disk"'.

Regards!

...JRF...

[harry d brown jr]

do a man on vgscan


mv /etc/lvmtab /etc/orig.lvmtab
vgscan -a

live free or die
harry

[S.K. Chan · Accepted solution]

The key to this is to remove the "stale" mirrored copies on the ghost disk first with the "key-value" from lvdisplay output of the LV that is stale.. example ..(lvol2 in vg00)
and

# lvdisplay -v -k /dev/vg00/lvol2
==> the PV column will show you the disk key value (usually 0 or 1)

With that remove the mirrored stale LV (assuming disk key value is 1)

# lvreduce -m 0 -k /dev/vg00/lvol2 1

Final steps ..
# cd /etc
# mv lvmtab lvmtab.org
# vgscan ???v
# vgchange -a y vg00
--> reactivate vg00
# vgreduce -f vg00
--> force removal of the ghost disk

[Sanjay_6]

Hi Henry,

Try this link,

{note: contract customer link removed by moderator}

Hope this helps.

Regds

[Henry Goverde]

Hi,

The vgscan -a doesn't change a thing. lvmtab reports 4 disks and SAM reports 5. I haven't been able to locate the document for removing a ghost disk.

Thanks for your input. If you have any more suggestions they will be appreciated.

Thanks,

Henry

[James R. Ferguson]

Hi Henry:

For full access to the Knowledge Base, you must have a support agreement and you must login to the ITRC. When you meet these criteria, be sure to select the "by DocID" from the dropdown box to the left of the search criteria.

Regards!

...JRF...

[Henry Goverde]

Thanks a bunch. Looks OK through SAM as well now. I'll try my re-mirroring tonight.