On 04/30/2010 02:07 PM, Preston Connors wrote:
FDISK OUTPUT AFTER FAIL OVER:
r...@kvm-host-3:~# fdisk -l /dev/sdd
<no output>
It is weird that the /dev/sdd link is now gone, but iscsiadm can see the
disk below. iscsiadm looks in /sys/block. It does not look at the /dev dir.
The iscsi layer does not really do anything wrt /dev population except
transport requests. I wonder what is removing the /dev links during this
time. It is not the iscsi layer or tools (we do not touch that stuff).
Are you using udev? Is it possible to rerun udev to create the /dev
links? Do you see anything in /dev/disk?
While the failover is occurring are you running IO through the FS? Do
you see IO errors in /var/log/messages during this time?
After the failover, if you try to send IO to the FS what IO errors do
you see in /var/log/messages?
If you just do IO directly to the disk, before and after the failover
(so just leave a dd if=/dev/sdd of=/dev/null running during the test) do
you see any IO errors in /var/log/messages?
ISCSIADM OUTPUT AFTER FAIL OVER:
r...@host:~# iscsiadm -m session -P 3
iSCSI Transport Class version 2.0-870
iscsiadm version 2.0-870
Target: iqn.1986-03.com.sun:mirror:iscsi-failover-test
Current Portal: 192.168.1.1:3260,2
Persistent Portal: 192.168.1.1:3260,2
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname: iqn.1993-08.org.debian:01:bb82d0f5e87f
Iface IPaddress: 192.168.1.2
Iface HWaddress: default
Iface Netdev: default
SID: 3
iSCSI Connection State: LOGGED IN
iSCSI Session State: LOGGED_IN
Internal iscsid Session State: NO CHANGE
************************
Negotiated iSCSI params:
************************
HeaderDigest: None
DataDigest: None
MaxRecvDataSegmentLength: 131072
MaxXmitDataSegmentLength: 32768
FirstBurstLength: 65536
MaxBurstLength: 524288
ImmediateData: Yes
InitialR2T: Yes
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 6 State: running
scsi6 Channel 00 Id 0 Lun: 0
Attached scsi disk sdd State: running
--
You received this message because you are subscribed to the Google Groups
"open-iscsi" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/open-iscsi?hl=en.
