Since it's on multiple adapters and started happening at the same time...

Double-check that all firmware levels matrix into a supported configuration (hosts, switches, ONTAP). I've run into these issues when one group decides to update firmware on one component and doesn't inform involved groups.

http://now.netapp.com/NOW/knowledge/docs/san/fcp_iscsi_config/index.shtm l (FCP & iSCSI Compatibility Matrix)

I'm assuming you have support -- I'd recommend opening a NOW case or one through your reseller after you've checked the basics.

Christopher Mende Systems Engineer

Infinity Solutions Ltd P O Box 3323, Auckland Ph: +64 9 921 8039, Mob: +64 21 227 7590 Fax: +64 9 309 4142 www.infinitysolutions.co.nz

-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of kunle windapo Sent: Friday, December 01, 2006 12:02 AM To: toasters@mathworks.com Subject: experiencing link breaks on filer hba's

hello, i have 2 FAS980C's in my SAN environment. Data on one is mirrored to the other. i have twice experienced link breaks on two of my hba's adapter 5b and 6b on both filers at the same time, the links come up at the same time after about 7mins. both times when this has happened, our Exchange server looses access to its SAN disk devices leading to a downtime. Has any body experienced this before, if so please HELP me prevent this from happening again. here is error log: Wed Nov 29 13:50:19 GMT [vhe-cl1-n1: scsitarget.ispfct.linkBreak:warning]: Link break detected on Fibre Channel target adapter 5b. Wed Nov 29 13:50:19 GMT [vhe-cl1-n2/vhe-cl1-n1: scsitarget.ispfct.globalLogout:CRITICAL]: FCP Target: Global Logout/Process Logout/Config Changed (from port 210000e08b1c3f12), aborting all SCSI commands Wed Nov 29 13:51:19 GMT [vhe-cl1-n1: scsitarget.ispfct.linkBreak:warning]: Link break detected on Fibre Channel target adapter 6b. Wed Nov 29 13:51:19 GMT [vhe-cl1-n2/vhe-cl1-n1: scsitarget.ispfct.globalLogout:CRITICAL]: FCP Target: Global Logout/Process Logout/Config Changed (from port 500a098e8647ae78), aborting all SCSI commands Wed Nov 29 13:55:05 GMT [vhe-cl1-n2/vhe-cl1-n1: scsitarget.ispfct.targetReset:CRITICAL]: FCP Target: Target Reset (from port 210000e08b1ae0fc), aborting all SCSI commands Wed Nov 29 13:55:05 GMT [vhe-cl1-n1: scsitarget.ispfct.targetReset:CRITICAL]: FCP Target: Target Reset (from port 210000e08b1ae0fc), aborting all SCSI commands Wed Nov 29 13:58:57 GMT [vhe-cl1-n2/vhe-cl1-n1: scsitarget.ispfct.globalLogout:CRITICAL]: FCP Target: Global Logout/Process Logout/Config Changed (from port 500a098c8647ae78), aborting all SCSI commands Wed Nov 29 13:58:57 GMT [vhe-cl1-n1: scsitarget.ispfct.linkUp:notice]: Link up on Fibre Channel target adapter 5b. Wed Nov 29 13:58:57 GMT [vhe-cl1-n1: scsitarget.ispfct.linkUp:notice]: Link up on Fibre Channel target adapter 5b. Wed Nov 29 13:58:57 GMT [vhe-cl1-n2/vhe-cl1-n1: scsitarget.ispfct.globalLogout:CRITICAL]: FCP Target: Global Logout/Process Logout/Config Changed (from port 500a098e8647ae78), aborting all SCSI commands Wed Nov 29 13:58:57 GMT [vhe-cl1-n1: scsitarget.ispfct.linkUp:notice]: Link up on Fibre Channel target adapter 6b. Wed Nov 29 13:58:57 GMT [vhe-cl1-n1: scsitarget.ispfct.linkUp:notice]: Link up on Fibre Channel target adapter 6b.

Await responses.

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