<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Sep 3, 2014, at 11:29 AM, Elvin Cako wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><blockquote class="gmail_quote" style="font-family: arial, sans-serif; font-size: 13px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; "><div dir="ltr"><div>I also want to add some discrepancies in looking at the file:<div><br></div></div><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">cat /proc/mdstat</div></div></div></blockquote><blockquote class="gmail_quote" style="font-family: arial, sans-serif; font-size: 13px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; "><div dir="ltr"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">Personalities : [raid1] </div></div></blockquote><div style="font-family: arial, sans-serif; font-size: 13px; ">... </div><div style="font-family: arial, sans-serif; font-size: 13px; "><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; "><div dir="ltr"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">md35 : active raid1 sdb2[0] sdc2[1]</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; "> 99629440 blocks super 1.0 [3/2] [UU_]</div><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; min-height: 13px; "> <br class="webkit-block-placeholder"></p><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">md34 : active raid1 sdbt2[0] sdbp2[1]</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; "> 830240064 blocks super 1.0 [3/2] [UU_]</div><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; min-height: 13px; "> <br class="webkit-block-placeholder"></p><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">md33 : active raid1 sdbu2[0] sdbs2[1]</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; "> 830240064 blocks super 1.0 [3/2] [UU_]</div><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; min-height: 13px; "> <br class="webkit-block-placeholder"></p><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">md32 : active raid1 sdby2[0] sdbv2[1]</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; "> 830240064 blocks super 1.0 [3/2] [UU_]</div><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; min-height: 13px; "> <br class="webkit-block-placeholder"></p><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">md31 : active raid1 sdbr2[0] sdbw2[1]</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; "> 830240064 blocks super 1.0 [3/2] [UU_]</div><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; min-height: 13px; "> <br class="webkit-block-placeholder"></p><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">md30 : active raid1 sdbq2[0] sdbx2[1]</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; "> 830240064 blocks super 1.0 [3/2] [UU_]</div></div></blockquote></div><div style="font-family: arial, sans-serif; font-size: 13px; ">... </div><blockquote class="gmail_quote" style="font-family: arial, sans-serif; font-size: 13px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; "><div dir="ltr"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; min-height: 13px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">We are only using the second partition of each drive for our md devices. In the log(attached previously) we see that the drive, the first partition, and the second partition are "Added to device cache". Is "device cache" some other cache not related to our SSD cache we're trying to create?</div></div></blockquote><div><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:333 /dev/sdb: Added to device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-id/ata-Samsung_SSD_840_EVO_120GB_S1D5NSBF109608M: Aliased to /dev/sdb in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-id/wwn-0x50025388a01d30bc: Aliased to /dev/sdb in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:333 /dev/sdb1: Added to device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-id/ata-Samsung_SSD_840_EVO_120GB_S1D5NSBF109608M-part1: Aliased to /dev/sdb1 in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-id/wwn-0x50025388a01d30bc-part1: Aliased to /dev/sdb1 in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:319 /dev/disk/by-partlabel/metadata: Already in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-partuuid/e7d5c622-626c-4122-9d5c-ccb1ae1ff0dc: Aliased to /dev/sdb1 in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-uuid/dc8f83e2-1073-4128-b64f-9e86b9539c67: Aliased to /dev/sdb1 in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:333 /dev/sdb2: Added to device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-id/ata-Samsung_SSD_840_EVO_120GB_S1D5NSBF109608M-part2: Aliased to /dev/sdb2 in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-id/wwn-0x50025388a01d30bc-part2: Aliased to /dev/sdb2 in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:319 /dev/disk/by-partlabel/raiddata: Already in device cache</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-size: 11px; font-family: Menlo; ">#device/dev-cache.c:330 /dev/disk/by-partuuid/39bcecad-693c-4842-b71d-920c4eb8aaef: Aliased to /dev/sdb2 in device cache</div><div> </div></span></blockquote><br></div><div>Yes, it is different. That has to do with LVM remembering what devices it has seen when reading LVM labels. The LVM labels on those devices tell it how the volumes have been constructed and so on.</div><div><br></div><div> brassow</div><br></body></html>