Mike Christie wrote:
> Ken A wrote:
>> Hi,
>>
>> I'm new to iscsi, and this group, and I'm hoping someone can't point me 
>> in the right direction.
>>
>> We have a Wasabi Storage Builder target and I'm having trouble with 
>> connections to it using open-iscsi initiators on several fedora core 
>> boxes running iscsi-initiator-utils.i386 6.2.0.868-0.7.fc9
>>
>> I can connect to targets on the Wasabi box, and can create partitions. 
>> But, when I try to create a filesystem "mkfs -j -L test /dev/sdXY" 
>> things break badly. I/O errors "conn error (1011)" are reported in the 
>> log and the initiator locks up - the machine locks up, not just the 
>> initiator software. A hard reboot is required to get it back. :-(
>>
>> Here's what the log says (over 2000 lines of the same):
>>
>> kernel: Buffer I/O error on device sdc1, logical block 2568
>> iscsid: Nop-out timedout after 15 seconds on connection 1:0 state (3). 
>> Dropping session.
> 
> Could you try turning nops off?
> 
> Logout the existing sessions, set
> node.conn[0].timeo.noop_out_interval = 0
> node.conn[0].timeo.noop_out_timeout = 0
> in iscsid.conf, rerun the iscsiadm -m discovery .... command, then 
> relogin and try the mkfs.
> 


Yes, thanks, turning off nops helped with some of the timeouts. The mkfs 
succeeded (very slowly), with this block of errors repeating in the log 
(see below).

I should mention that this is on a asynchronous link, (100mbps initiator 
<-> 1000mbps target).
The initiator is running Fedora 8, 2.6.25.6-27.fc8, open-iscsi 2.0-865.
Target is Wasabi Storage Builder.

Any ideas?

Thanks,
Ken

Jun 25 14:16:24 testserver kernel:  connection3:0: detected conn error 
(1011)
Jun 25 14:16:24 testserver kernel: sd 4:0:0:0: [sde] Result: 
hostbyte=DID_BUS_BUSY driverbyte=DRIVER_OK,SUGGEST_OK
Jun 25 14:16:24 testserver kernel: end_request: I/O error, dev sde, 
sector 1838511
Jun 25 14:16:24 testserver kernel: printk: 474 messages suppressed.
Jun 25 14:16:24 testserver kernel: Buffer I/O error on device sde1, 
logical block 919224
Jun 25 14:16:24 testserver kernel: lost page write due to I/O error on sde1
Jun 25 14:16:24 testserver kernel: Buffer I/O error on device sde1, 
logical block 919225
Jun 25 14:16:24 testserver kernel: lost page write due to I/O error on sde1
Jun 25 14:16:24 testserver kernel: Buffer I/O error on device sde1, 
logical block 919226
Jun 25 14:16:24 testserver kernel: lost page write due to I/O error on sde1
Jun 25 14:16:24 testserver kernel: sd 4:0:0:0: [sde] Result: 
hostbyte=DID_BUS_BUSY driverbyte=DRIVER_OK,SUGGEST_OK
Jun 25 14:16:24 testserver kernel: end_request: I/O error, dev sde, 
sector 1314223
Jun 25 14:16:25 testserver iscsid: Kernel reported iSCSI connection 3:0 
error (1011) state (3)
Jun 25 14:16:28 testserver iscsid: connection3:0 is operational after 
recovery (2 attempts)





> 
> > 


-- 
Ken Anderson
Pacific.Net


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