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<p class="MsoNormal">Our servers have a large number of resources on a 6-drive volume group. When Linstor provisioned the resources, it apparently kept them all on individual devices. Here’s a snippet of the approximately 200 resources on the servers. None
of them show more than 1 device in the “Devices” column.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[root@ha51b ~]# lvs -o+lv_layout,stripes,devices<o:p></o:p></p>
<p class="MsoNormal"> LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Layout #Str Devices<o:p></o:p></p>
<p class="MsoNormal"> site002_00000 vg0 -wi-ao---- 104.02g linear 1 /dev/nvme3n1(371535)<o:p></o:p></p>
<p class="MsoNormal"> site003_00000 vg0 -wi-ao---- <63.02g linear 1 /dev/nvme0n1(498558)<o:p></o:p></p>
<p class="MsoNormal"> site017_00000 vg0 -wi-ao---- <149.04g linear 1 /dev/nvme3n1(724396)<o:p></o:p></p>
<p class="MsoNormal"> site019_00000 vg0 -wi-ao---- <19.01g linear 1 /dev/nvme4n1(0)<o:p></o:p></p>
<p class="MsoNormal"> site021_00000 vg0 -wi-ao---- <23.01g linear 1 /dev/nvme2n1(698275)<o:p></o:p></p>
<p class="MsoNormal"> site030_00000 vg0 -wi-ao---- 39.01g linear 1 /dev/nvme2n1(704165)<o:p></o:p></p>
<p class="MsoNormal"> site034_00000 vg0 -wi-ao---- <23.01g linear 1 /dev/nvme3n1(713896)<o:p></o:p></p>
<p class="MsoNormal"> site035_00000 vg0 -wi-ao---- 39.01g linear 1 /dev/nvme0n1(254527)<o:p></o:p></p>
<p class="MsoNormal"> site036_00000 vg0 -wi-ao---- <88.02g linear 1 /dev/nvme2n1(714152)<o:p></o:p></p>
<p class="MsoNormal"> site037_00000 vg0 -wi-ao---- <28.01g linear 1 /dev/nvme0n1(530822)<o:p></o:p></p>
<p class="MsoNormal"> site039_00000 vg0 -wi-ao---- <59.02g linear 1 /dev/nvme1n1(180777)<o:p></o:p></p>
<p class="MsoNormal"> site041_00000 vg0 -wi-ao---- <21.01g linear 1 /dev/nvme3n1(181290)<o:p></o:p></p>
<p class="MsoNormal"> site043_00000 vg0 -wi-ao---- 50.01g linear 1 /dev/nvme3n1(398165)<o:p></o:p></p>
<p class="MsoNormal"> site045_00000 vg0 -wi-ao---- 52.01g linear 1 /dev/nvme1n1(203567)<o:p></o:p></p>
<p class="MsoNormal"> site047_00000 vg0 -wi-ao---- 54.01g linear 1 /dev/nvme0n1(264514)<o:p></o:p></p>
<p class="MsoNormal"> site049_00000 vg0 -wi-ao---- <81.02g linear 1 /dev/nvme3n1(410968)<o:p></o:p></p>
<p class="MsoNormal"> site058_00000 vg0 -wi-ao---- <30.01g linear 1 /dev/nvme0n1(564622)<o:p></o:p></p>
<p class="MsoNormal"> site062_00000 vg0 -wi-ao---- 17.00g linear 1 /dev/nvme3n1(197679)<o:p></o:p></p>
<p class="MsoNormal"> site065_00000 vg0 -wi-ao---- <23.01g linear 1 /dev/nvme1n1(387935)<o:p></o:p></p>
<p class="MsoNormal"> site068_00000 vg0 -wi-ao---- <32.01g linear 1 /dev/nvme0n1(616090)<o:p></o:p></p>
<p class="MsoNormal"></snip><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">With this layout (all LVs are linear), when a drive fails, I assume only the resources on that physical drive would go diskless, and all the other resources would continue operating normally, is that correct?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In such an event, what would be the recovery procedure? Swap the failed drive, use vgcfrestore to restore the LVM data to the new PV, then do a DRBD resync?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Eric<o:p></o:p></p>
<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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