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тАО01-25-2004 07:04 AM
тАО01-25-2004 07:04 AM
Anyway, it looks like this:
Bay C: HW path 10/0.3.0 (c0t3d0)
Bay D: HW path 10/0.4.0 (c0t4t0)
Bay E: HW path 10/0.5.0 (c0t5d0)
Bay F: HW path 10/0.6.0 (c0t6d0)
and it should be, according to the front panel map:
Bay C: HW path 10/0.6.0 (c0t6d0)
Bay D: HW path 10/0.5.0 (c0t5t0)
Bay E: HW path 10/0.4.0 (c0t4d0)
Bay F: HW path 10/0.3.0 (c0t3d0)
We have many peopl who might replace a disk on this machine so I want the front panel paths to be correct. Am I right in assuming that it's only the SCSI jumpers on the disk that determine these paths (and device numbers) so I can just move the disks around to the right places according to the ID and it will be ok? Obviously, I can't change the jumpers because that would change the device numbers and that would break LVM completely (there are root disks and mirrors).
Solved! Go to Solution.
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тАО01-25-2004 07:50 AM
тАО01-25-2004 07:50 AM
Solutionyes, you are correct
Obviously, I can't change the jumpers because that would change the device numbers
correct again, this would be very bad
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тАО01-25-2004 07:54 AM
тАО01-25-2004 07:54 AM
Re: K-class SCSI ID and HW path question
Do not re-jumper the disks, because then ,like you already noticed, LVM-config will be corrupted.
Regards,
Peter Geluk
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тАО01-25-2004 08:06 AM
тАО01-25-2004 08:06 AM
Re: K-class SCSI ID and HW path question
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тАО01-25-2004 12:38 PM
тАО01-25-2004 12:38 PM
Re: K-class SCSI ID and HW path question
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тАО01-25-2004 05:07 PM
тАО01-25-2004 05:07 PM
Re: K-class SCSI ID and HW path question
I always do a dd read on the drive - if responding - and look for the constant drive activity light. If not, it'll be the one that doesn't light up.
Rgds,
Jeff
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тАО01-25-2004 08:04 PM
тАО01-25-2004 08:04 PM
Re: K-class SCSI ID and HW path question
You are correct it is only the jumpers on the discs that are used for the K class internal discs.
You could just move the discs around, but the SCSI cable can be quite tight and you might cause more problems than you solve.
Ken
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тАО01-27-2004 04:46 AM
тАО01-27-2004 04:46 AM
Re: K-class SCSI ID and HW path question
something like:
dd if=/dev/dsk/c10t2d0 of=/dev/null
and break it (may take a moment to actually stop) when you've identified the disk you're reading.