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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - udev 202 mangles persistent disk/by-path w/ Intel C606 Dual 4-port SAS"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63806">63806</a>
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<th>Assignee</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>udev 202 mangles persistent disk/by-path w/ Intel C606 Dual 4-port SAS
</td>
</tr>
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<th>QA Contact</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>me@mooluv.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>general
</td>
</tr>
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<th>Product</th>
<td>systemd
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</tr></table>
<p>
<div>
<pre>by-path persistent device names overlap the 2nd 4-port section of the
controller on top of the first:
pci-0000:03:00.0-sas-0x500304800e246e00-lun-0 -> ../../sdc
pci-0000:03:00.0-sas-0x500304800e246e00-lun-0-part1 -> ../../sdc1
pci-0000:03:00.0-sas-0x500304800e246e01-lun-0 -> ../../sdd
pci-0000:03:00.0-sas-0x500304800e246e01-lun-0-part1 -> ../../sdd1
pci-0000:03:00.0-sas-0x500304800e246e01-lun-0-part2 -> ../../sdg2
pci-0000:03:00.0-sas-0x500304800e246e02-lun-0 -> ../../sde
pci-0000:03:00.0-sas-0x500304800e246e02-lun-0-part1 -> ../../sde1
sd[cde] are on ports 6:0-3 and sd[fg] are on ports 7:0-1 where 6 is the first
half and 7 is the second half of the "dual" hardware config. Where a link
already exists with a particular name, no new one is created to the 2nd half.
This is why /dev/sdf is not linked to and why there is an sdg2 but no sdg or
sdg1 (they would be the same as sdd and sdd1).
/devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:08.0/0000:03:00.0/host6/port-6:1/end_device-6:1/target6:0:1/6:0:1:0/block/sdd
/devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:08.0/0000:03:00.0/host7/port-7:1/end_device-7:1/target7:0:1/7:0:1:0/block/sdg
E: DEVLINKS=/dev/disk/by-id/ata-M4-CT128M4SSD2_00000000113003152D83
/dev/disk/by-id/wwn-0x500a075103152d83
/dev/disk/by-path/pci-0000:03:00.0-sas-0x500304800e246e01-lun-0
E: DEVLINKS=/dev/disk/by-id/ata-WD_WD30EFRX-68AX9N0_WD-WMC1T1636965
/dev/disk/by-id/wwn-0x50014ee0ae28a327
/dev/disk/by-path/pci-0000:03:00.0-sas-0x500304800e246e01-lun-0
Whatever is determining ID_PATH isn't doing it right in this case. Let me know
what additional information I can provide.</pre>
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