<HTML dir=ltr><HEAD><TITLE>Re: [dm-devel] kernel crash with multipath-tools v0.4.7</TITLE>
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<DIV dir=ltr><FONT color=#000000 size=2 face=Arial>Hello Dr. Hannes, </FONT></DIV>
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<DIV dir=ltr><FONT color=#000000 size=2 face=Arial> Thanks for your reply. We are trying to help a customer on this issue who want to use our RAID storage to <BR>store video files. The customer is using a special Video Capture/Encoding hardware and Video workflow <BR>supported only for kernel 2.6.26. The vendor of this video solution is no longer there and has closed down. <BR>The customer has spent more than $300K on this proprietary video solution that they cannot move to the <BR>latest kernel and is stuck with it. </FONT></DIV>
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<DIV dir=ltr><FONT color=#000000 size=2 face=Arial> Since updating the kernel is not possible, somehow I want to provide a targeted workaround for this issue. </FONT></DIV>
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<DIV dir=ltr><FONT color=#000000 size=2 face=Arial>Thanks,<BR>Praveen</FONT></DIV>
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<FONT size=2 face=Tahoma><B>From:</B> Hannes Reinecke [mailto:hare@suse.de]<BR><B>Sent:</B> Thu 6/13/2013 1:25 AM<BR><B>To:</B> device-mapper development<BR><B>Cc:</B> Praveen Dhanasekaran - PTI; Mohan Rowlands - PTU; Manoj Mathew - PTU; Nagendra Vadlakunta - PTU<BR><B>Subject:</B> Re: [dm-devel] kernel crash with multipath-tools v0.4.7<BR></FONT><BR></DIV>
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<P><FONT size=2>On 06/12/2013 01:03 PM, Praveen Dhanasekaran - PTI wrote:<BR>> Hello All,<BR>> <BR>> I have a RAID storage box connected to a Linux server through fc<BR>> cables. The server is using<BR>> kernel 2.6.26, and multipath-tools v0.4.7 (with dm-mpath target<BR>> version 1.0.5) is installed on it<BR>> to handle the disk scsi devices from the storage box. The multipath<BR>> device is mounted and<BR>> used for a file system.<BR>> <BR>This kernel is ancient, and there were several fixes for the SCSI<BR>layer to fixup these issues.<BR>Update the kernel or talk to your linux distributor.<BR><BR>(I know of one who'd be happy to help you out :-)<BR><BR>Cheers,<BR><BR>Hannes<BR>--<BR>Dr. Hannes Reinecke zSeries & Storage<BR>hare@suse.de +49 911 74053 688<BR>SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg<BR>GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)<BR></FONT></P></DIV></BODY></HTML>