multipath is not presented after new disk discovered.

hilou · 08-26-2013, 03:00 AM

Hi,

first filer guys said:
500G LUN added: 600128393839493999000000

then I can see log like below after scan Hba:
multipathd: sdi: add path (uevent)
kernel: sd 0:0:2:1: Attached scsi disk sdi

and disks:
sdi~sdp

but I cannot see the path in multipah -ll.

Please help.

Thanks in advance.

nitrohuffer2001 · 11-12-2015, 09:04 PM

Did you re-scan the bus for new disks?

berndbausch · 11-12-2015, 11:36 PM

Two additional thoughts:

multipathing requires a minimum of setup, in particular configuring the multipath.conf file. Your distro probably has a guide for that.

The command multipath -v4 will give you extremely verbose information, including devices it found and what it did with them (e.g. blacklisting them or making a multipath).