topic LUN SCAN ISSUE on Linux in Disk Enclosures https://community.hpe.com/t5/disk-enclosures/lun-scan-issue-on-linux/m-p/4491084#M32565 Hi,<BR /><BR />My SAN is active/active.<BR /><BR />We have an EVA 6000 san, and each of our servers have 2 hba, which connect to 2 seperate frabric switches, which in turn connects to the 2 SAN controllers.<BR /><BR />I manage multipathing with Qlogic HBAs – failover.<BR /><BR />I use RSM job to create Demand Allocated Snaps and present theme to linux host but will see the LUN twice.<BR />can you help me to fix the issue ?<BR /><BR />qla2400 0000:4c:00.0: Scheduling rescan for new luns...<BR />qla2400 0000:49:00.0: Scheduling rescan for new luns...<BR />qla2400 0000:46:00.0: Scheduling rescan for new luns...<BR /> Vendor: HP Model: HSV200 Rev: 6100<BR /> Type: Direct-Access ANSI SCSI revision: 05<BR />qla2400 0000:4c:00.0: scsi(0:0:0:12): Enabled tagged queuing, queue depth 16.<BR />SCSI device sdi: 83886080 512-byte hdwr sectors (42950 MB)<BR />SCSI device sdi: drive cache: write through<BR />SCSI device sdi: 83886080 512-byte hdwr sectors (42950 MB)<BR />SCSI device sdi: drive cache: write through<BR /> sdi: sdi1<BR />Attached scsi disk sdi at scsi0, channel 0, id 0, lun 12<BR />Attached scsi generic sg9 at scsi0, channel 0, id 0, lun 12, type 0<BR /> Vendor: HP Model: HSV200 Rev: 6100<BR /> Type: Direct-Access ANSI SCSI revision: 05<BR />qla2400 0000:49:00.0: scsi(1:0:4:12): Enabled tagged queuing, queue depth 16.<BR />SCSI device sdj: 83886080 512-byte hdwr sectors (42950 MB)<BR />SCSI device sdj: drive cache: write through<BR />SCSI device sdj: 83886080 512-byte hdwr sectors (42950 MB)<BR />SCSI device sdj: drive cache: write through<BR /> sdj: sdj1<BR />Attached scsi disk sdj at scsi1, channel 0, id 4, lun 12<BR />Attached scsi generic sg10 at scsi1, channel 0, id 4, lun 12, type 0<BR /><BR /><BR /> Thu, 03 Sep 2009 08:47:32 GMT cherif 2009-09-03T08:47:32Z LUN SCAN ISSUE on Linux https://community.hpe.com/t5/disk-enclosures/lun-scan-issue-on-linux/m-p/4491084#M32565 Hi,<BR /><BR />My SAN is active/active.<BR /><BR />We have an EVA 6000 san, and each of our servers have 2 hba, which connect to 2 seperate frabric switches, which in turn connects to the 2 SAN controllers.<BR /><BR />I manage multipathing with Qlogic HBAs – failover.<BR /><BR />I use RSM job to create Demand Allocated Snaps and present theme to linux host but will see the LUN twice.<BR />can you help me to fix the issue ?<BR /><BR />qla2400 0000:4c:00.0: Scheduling rescan for new luns...<BR />qla2400 0000:49:00.0: Scheduling rescan for new luns...<BR />qla2400 0000:46:00.0: Scheduling rescan for new luns...<BR /> Vendor: HP Model: HSV200 Rev: 6100<BR /> Type: Direct-Access ANSI SCSI revision: 05<BR />qla2400 0000:4c:00.0: scsi(0:0:0:12): Enabled tagged queuing, queue depth 16.<BR />SCSI device sdi: 83886080 512-byte hdwr sectors (42950 MB)<BR />SCSI device sdi: drive cache: write through<BR />SCSI device sdi: 83886080 512-byte hdwr sectors (42950 MB)<BR />SCSI device sdi: drive cache: write through<BR /> sdi: sdi1<BR />Attached scsi disk sdi at scsi0, channel 0, id 0, lun 12<BR />Attached scsi generic sg9 at scsi0, channel 0, id 0, lun 12, type 0<BR /> Vendor: HP Model: HSV200 Rev: 6100<BR /> Type: Direct-Access ANSI SCSI revision: 05<BR />qla2400 0000:49:00.0: scsi(1:0:4:12): Enabled tagged queuing, queue depth 16.<BR />SCSI device sdj: 83886080 512-byte hdwr sectors (42950 MB)<BR />SCSI device sdj: drive cache: write through<BR />SCSI device sdj: 83886080 512-byte hdwr sectors (42950 MB)<BR />SCSI device sdj: drive cache: write through<BR /> sdj: sdj1<BR />Attached scsi disk sdj at scsi1, channel 0, id 4, lun 12<BR />Attached scsi generic sg10 at scsi1, channel 0, id 4, lun 12, type 0<BR /><BR /><BR /> Thu, 03 Sep 2009 08:47:32 GMT https://community.hpe.com/t5/disk-enclosures/lun-scan-issue-on-linux/m-p/4491084#M32565 cherif 2009-09-03T08:47:32Z Re: LUN SCAN ISSUE on Linux https://community.hpe.com/t5/disk-enclosures/lun-scan-issue-on-linux/m-p/4491085#M32566 Hi,<BR /><BR />Have you installed the HP Q-Logic drivers, or are you using the standard ones ?<BR /><BR />If the latter, then you may want to install the HP version. You can probably tell, by seeing whether the command "lssd" exists, which is part of one of the HP packages.<BR /><BR />It would also be useful to know if this is only happening on the "snap" LUNs...<BR /><BR />Cheers,<BR /><BR />Rob Thu, 03 Sep 2009 16:15:21 GMT https://community.hpe.com/t5/disk-enclosures/lun-scan-issue-on-linux/m-p/4491085#M32566 Rob Leadbeater 2009-09-03T16:15:21Z Re: LUN SCAN ISSUE on Linux https://community.hpe.com/t5/disk-enclosures/lun-scan-issue-on-linux/m-p/4491086#M32567 Hi,<BR /><BR />I installed the HP Q-Logic drivers.And it only happening on the "snap" LUNs.<BR /><BR />Best regards,<BR /><BR />Mohamed Fri, 04 Sep 2009 12:39:18 GMT https://community.hpe.com/t5/disk-enclosures/lun-scan-issue-on-linux/m-p/4491086#M32567 cherif 2009-09-04T12:39:18Z