Re: [zfs-discuss] In iSCSI hell...

2010-04-22 Thread Maurice Volaski
This sounds like 
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6894775. 
It seems this can be avoided by switching to an LSI card that uses 
mpt_sas. For example, the 9211.


However, certain drives, such as the Western Digital 
WD2002FYPS-01U1B0, can also result in the behavior .


Apr 21 19:58:43 storage scsi: [ID 107833 kern.warning] WARNING: 
/p...@0,0/pci8086,3...@6/pci8086,3...@0/pci1028,1...@8 (mpt1):

Apr 21 19:58:43 storage Disconnected command timeout for Target 27
Apr 21 19:58:45 storage scsi: [ID 365881 kern.info] 
/p...@0,0/pci8086,3...@6/pci8086,3...@0/pci1028,1...@8 (mpt1):

Apr 21 19:58:45 storage Log info 0x3114 received for target 27.
Apr 21 19:58:45 storage scsi_status=0x0, ioc_status=0x8048, 
scsi_state=0xc
Apr 21 19:58:45 storage scsi: [ID 365881 kern.info] 
/p...@0,0/pci8086,3...@6/pci8086,3...@0/pci1028,1...@8 (mpt1):

Apr 21 19:58:45 storage Log info 0x3114 received for target 27.
Apr 21 19:58:45 storage scsi_status=0x0, ioc_status=0x8048, 
scsi_state=0xc
Apr 21 19:58:45 storage scsi: [ID 365881 kern.info] 
/p...@0,0/pci8086,3...@6/pci8086,3...@0/pci1028,1...@8 (mpt1):

Apr 21 19:58:45 storage Log info 0x3114 received for target 27.
Apr 21 19:58:45 storage scsi_status=0x0, ioc_status=0x8048, 
scsi_state=0xc


--

Maurice Volaski, maurice.vola...@einstein.yu.edu
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University
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Re: [zfs-discuss] In iSCSI hell...

2010-04-21 Thread Ron Mexico
 are you using comstar or the old iSCSI target (iscsitadm) to provision 
 targets?

I'm using zfs set shareiscsi=on to confugure the logical units and COMSTAR for 
the rest on the OpenSolaris side. The targets are initiated on Solaris 10 with 
iscsiadm.

This thing was humming right along and all of a sudden it stopped working after 
a few weeks. The connection is made via gigabit crossover cable using the 
e1000g driver on both ends. I get endless errors like this:

Apr 21 19:58:43 storage scsi: [ID 107833 kern.warning] WARNING: 
/p...@0,0/pci8086,3...@6/pci8086,3...@0/pci1028,1...@8 (mpt1):
Apr 21 19:58:43 storage Disconnected command timeout for Target 27
Apr 21 19:58:45 storage scsi: [ID 365881 kern.info] 
/p...@0,0/pci8086,3...@6/pci8086,3...@0/pci1028,1...@8 (mpt1):
Apr 21 19:58:45 storage Log info 0x3114 received for target 27.
Apr 21 19:58:45 storage scsi_status=0x0, ioc_status=0x8048, 
scsi_state=0xc
Apr 21 19:58:45 storage scsi: [ID 365881 kern.info] 
/p...@0,0/pci8086,3...@6/pci8086,3...@0/pci1028,1...@8 (mpt1):
Apr 21 19:58:45 storage Log info 0x3114 received for target 27.
Apr 21 19:58:45 storage scsi_status=0x0, ioc_status=0x8048, 
scsi_state=0xc
Apr 21 19:58:45 storage scsi: [ID 365881 kern.info] 
/p...@0,0/pci8086,3...@6/pci8086,3...@0/pci1028,1...@8 (mpt1):
Apr 21 19:58:45 storage Log info 0x3114 received for target 27.
Apr 21 19:58:45 storage scsi_status=0x0, ioc_status=0x8048, 
scsi_state=0xc

If anyone can suggest an optimal network setting for this, please chime in.
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[zfs-discuss] In iSCSI hell...

2010-04-20 Thread Ron Mexico
I have a storage server with snv_134 installed. This has four zfs file systems 
shared with iscsi that are mounted as zfs volumes on a Sun v480.

Everything has been working great for about a month, and all of a sudden the 
v480 has timeout errors when trying to connect to the iscsi volumes on the 
storage server.

The connection between the two is a gigabit crossover cable, so other network 
traffic isn't an issue. HBAs, NICs, and cables in the storage server have been 
troubleshot and are working normally. The only common element here is the Intel 
nic in the v480. It seems to work OK otherwise, but it's the only component in 
this equation that hasn't changed.

What's the consensus on NIC configurations for iscsi? Are errors like this 
common if the MTU is set at the default of 1500?

Any and all comments/opinions are welcome.

Thanks.
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