bdf,df,umount get hangs

[Madhuchakaravar]

Hi

VG has lost connectivity with the SAN.

we are not unable to umount or vgexport the VG.

df,bdf,umount, ls to particular mount point also hang.

how it can be recovered  without rebooting and even after rebooting will it be solved.

Regards

Madhu

[Madhuchakaravar]

Hi

how about

mv /etc/mnttab /etc/mnttab.old

mount -a

regards

Madhu

[Madhuchakaravar]

i found in another link

http://h30499.www3.hp.com/t5/System-Administration/bdf-command-hanging/td-p/4812621/page/2

mv /etc/mnttab /etc/mnttab

mount -a

what is the logic behind this

regards

Madhu

[Torsten.]

>> VG has lost connectivity with the SAN.

You need to investigate why the server cannot longer access the (redundant) SAN - there must be a reason either on the switches or the array or somewhere between.

[Hiren N Dave]

Please post output of below commands....
# ioscan -fnC disk
# strings /etc/lvmtab OR strings /etc/lvmtab_p

[vishnu.khandare]

Hi,

Is there any issue with FC Cable connectivity, that might make the SAN unavalailiblity. Pls share #isocan -fnC disk

Regards

Vishnu