Additional Virtualization Discussions
We have a problem loading tje Fibre Channel Multi-Path IO (MPIO) for Linux.
It is a Ubuntu 8,03
Any ideas ?
Do you get any specific errors?
What are the HBA models and firmware levels?
Yes, we used the setup seen here:
LUNs is made from filerview, the 4 disk is viewable, the same disk from 4 paths, and we can do a fdisk -l on them.
Output from multipath -ll gives this:
# multipath -ll
sda: checker msg is "readsector0 checker reports path is down"
sdc: checker msg is "readsector0 checker reports path is down"
sdb: checker msg is "readsector0 checker reports path is down"
sdd: checker msg is "readsector0 checker reports path is down"
360a98000572d4377565a4f6b6852454adm-2 NETAPP ,LUN
\_ round-robin 0 [prio=0][active]
\_ 0:0:0:0 sda 8:0 [active][faulty]
\_ 1:0:0:0 sdc 8:32 [active][faulty]
\_ round-robin 0 [prio=0][enabled]
\_ 0:0:1:0 sdb 8:16 [active][faulty]
\_ 1:0:1:0 sdd 8:48 [active][faulty]
We have tried with CentOS 5,3 and here it works fine.
The HBA cards are:
QLogic Fibre Channel HBA Driver: 8.02.00.06.05.03-k
QLogic QMH2462 -
ISP2432: PCIe (2.5Gb/s x4) @ 0000:08:00.0 hdma+, host#=0, fw=4.04.05
[IP] [Multi-ID] [84XX]
Can you use the "direct_io" path checker and try ?
readsector0 had many issues and was deprecated. direct_io is the new default, upstream.
It is directio and not direct_io
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