FC multipath problem

[sub3xt1]

i install PVE 1.3 using environment:
a. 2 host x Intel 2 proc quadcore, E5540 @ 2,53 GHz, memory 8 GB, 2 x 146 GB SAS disk
b. 2 xQlogic SAN switch controller
c. storage FC disk 1 TB with 2 controller.
this structure give redudant topology from server to storage.

i create 2 LUN, LUN 0: 200 GB and LUN 1 : 250 GB.

at instalation stage, the installer see that there are 5 disk, which are. /dev/sda 200 GB, /dev/sdb 200 GB, /dev/sdc 250 GB, /dev/sdd 250 GB and /dev/sde 146 GB.

this is not right. there are only 3 disk: 146 GB, 200 Gb and 250 GB.

any clue to resolve this weird thing??

 

[Omny_Devi]

it's seeing the lun's twice, that's for sure. couldn't tell ya why though

 

[tom]

i install PVE 1.3 using environment:
a. 2 host x Intel 2 proc quadcore, E5540 @ 2,53 GHz, memory 8 GB, 2 x 146 GB SAS disk
b. 2 xQlogic SAN switch controller
c. storage FC disk 1 TB with 2 controller.
this structure give redudant topology from server to storage.

i create 2 LUN, LUN 0: 200 GB and LUN 1 : 250 GB.

at instalation stage, the installer see that there are 5 disk, which are. /dev/sda 200 GB, /dev/sdb 200 GB, /dev/sdc 250 GB, /dev/sdd 250 GB and /dev/sde 146 GB.

this is not right. there are only 3 disk: 146 GB, 200 Gb and 250 GB.

any clue to resolve this weird thing??

Currently we have not such hardware/storage here in our test lab so we cannot reproduce the issue - if we can get this hardware from someone for testing, we can take a look on it.

 

[udo]

Hi,
i think it's depends on the multipath-tools. Per default they aren't installed:

apt-get install multipath-tools

With luck, i can test it's on one server - i will report.

Udo

 

[udo]

Hi,
i have just install the multipath-tools and have done the reboot.

This is the output of multipath (only one Device with two connections):

proxmox1:~# multipath -l
1HITACHI_730131020016dm-5 HITACHI ,DF600F        
[size=133G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=0][active]
 \_ 0:0:0:16 sdc 8:32  [active][undef]
1HITACHI_730131020014dm-4 HITACHI ,DF600F        
[size=2.0T][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=0][active]
 \_ 0:0:0:1  sdb 8:16  [active][undef]
1HITACHI_730131020013dm-3 HITACHI ,DF600F        
[size=514G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=0][active]
 \_ 0:0:0:0  sda 8:0   [active][undef]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:0:0  sdd 8:48  [active][undef]

And with

mount /dev/mapper/1HITACHI_730131020013-part1 /backup

can i now access my disk with two paths. Nice (but pull one cable an then the other will i do tomorror)!

Udo