Messages in this thread | ![/](/images/icornerl.gif) | | From | "chandrasekhar.nagaraj" <> | Subject | Problem created by Zoning on Linux | Date | Mon, 31 Mar 2003 17:57:09 +0530 |
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Hi, We are trying to create zoning (IO fencing) on our storage device. The zoning is to be done on the LUN basis, so that a particular HBA will accesses the only those LUNs which are assigned to it.
We have two HBA cards residing on different Hosts.
We have created 8 LUNs (from 0 to 7). Now we want to give access to only 4 LUNs from each HBA card.
So we have given access to LUN 0 to 3 from HBA card 1. Also LUN 4 to 7 is to be accessed from HBA card 2.
When we did the above, we observed that the Host, which has access to LUN 0 to 3, is working fine. i.e. its /proc/scsi/scsi is showing entries corresponding to LUN 0 to 3. Also 4 scsi devices are created & can be viewed in /proc/partitions.
But the second Host, which should have access to LUN 4 to 7, has some problem. The /proc/partitions does not show any scsi device file. Also /proc/scsi/scsi does not entries corresponding to LUN 4 to 7; but it have only one entry corresponding to LUN 0 (which should not be allowed).
So, is there any restriction on Linux that the LUN number should start with 0 only?? If so, then what is the solution/workaround?
Thanks and Regards Chandrasekhar
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