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Pedro Bandim Faustino 11-26-2007 01:53 PM

user defined device name and table
 
Hi All,

I have a working multipath on root, but some questions still unanswered.
I'm hoping you can help me out ;)

My setup details:
Machine: IBM Blade Server HS21 with two Qlogic HBAs each connected to a
FC switch with two active ports

Storage IBM DS4700 with two controllers
OS: Fedora 7
DM packages:
- device-mapper-1.02.17-7.fc7
- device-mapper-libs-1.02.17-7.fc7
- device-mapper-multipath-0.4.7-11.fc7
uname -r: 2.6.23.1-21.fc7

At the moment this is what I have:

Output of multipath -ll:
mpath0 () dm-0 IBM,1814 FAStT
[size=4.0G][features=0][hwhandler=0]
\_ round-robin 0 [prio=4][active]
\_ 2:0:0:0 sda 8:0 [active][ready]
\_ 2:0:1:0 sdb 8:16 [active][ready]
\_ 3:0:0:0 sdc 8:32 [active][ready]
\_ 3:0:1:0 sdd 8:48 [active][ready]

Output of df -k:
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/dm-2 3960348 1772124 1983800 48% /
/dev/dm-1 101086 17593 78274 19% /boot
tmpfs 1037416 0 1037416 0% /dev/shm

Contents of /dev/mapper/:
crw------- 1 root root 10, 63 2007-11-26 13:58 control
brw-rw---- 1 root disk 253, 0 2007-11-26 13:58 mpath0
brw-rw---- 1 root disk 253, 1 2007-11-26 13:58 mpath0p1
brw-rw---- 1 root disk 253, 2 2007-11-26 13:58 mpath0p2

But this is what I really would like to have:

Output of multipath -ll:
SRV07_BOOT (3600a0b8000295d64000009304742b4c8) dm-0 IBM,1814 FAStT
[size=4.0G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=0][enabled]
\_ 2:0:0:0 sda 8:0 [active][ready]
\_ 3:0:0:0 sdc 8:32 [active][ready]
\_ round-robin 0 [prio=6][active]
\_ 2:0:1:0 sdb 8:16 [active][ready]
\_ 3:0:1:0 sdd 8:48 [active][ready]


I can modify the table by modifying the init script in the initrd image
and then booting with the modified initrd image but I don't know how to
change the name from mpath0 to SRV07_BOOT.


Any help will be very appreciated!!

Thank you,
Pedro Faustino
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