Old System

Three servers.. Centos 7 -> Lay down VDO (dedup / compression) add those VDO volumes as bricks to gluster.

New cluster (remove boot drives and run wipe of all data drives)

Goal: use first 512GB Drives to ignite the cluster and get things on feet and stage infrastructure things. Then use one of the 1TB drives in each server for my "production" volume. And second 1TB drive in each server as staging. I want to be able to "learn" and not loose days / weeks of data... so disk level rather give up capacity for sake of "oh.. well .. that messed up.. rebuild.

After minimal install. Setup of network.. run HCI wizard.

It failed various times along build... lack SELInux permissive, .. did not wipe 1TB drives with hope of importing old Gluster file system / VDO voluemes to import my five or six custom and important VMs. (OCP cluster bootstrap environment, Plex servers, DNS / DHCP / Proxy HA cluster nodes et....)

Gave up on too many HCI failures about disk.. so wiped drives (will use external NAS to repopulate important VMs back (or so is plan... see other posting on no import of qcow2 images / xml :P )

Ran into next batch of issues about use of true device ID ... as name too long... but /dev/sd? makes me nervious as I have seen many systems with issues when they use this old and should be depricated means to address disk ID: use UUID or raw ID... "/dev/disk/by-id/ata-Samsung_SSD_850_PRO_512GB_S250NXAGA15787L

Started getting errors about HCI failing with "excluded by filter" errors.

wiped drives ( gdisk /dev/sd? => x => z => y => y)

filters errors I could not fiture out what they were.. .. error of "filter exists" to me meant .. you have one.. remove it so I can remove drive.

Did full dd if=/dev/zero of=dev/sd? .. still same issue

filtered in multipath just for grins.... still same issue.

Posted to forums.. nobody had ideas https://forums.centos.org/viewtopic.php?f=54&t=75687 Posted to slack gluster channel.. they looked at it and could not figure out...

Wiped systems.. started over. This time the HCI wizard deployed.

My guess... is once I polished setup to make sure wizard did not attempt before SELinux set to permissive (vs disable) drives all wiped (even though they SHOULD just be ignored.. I I think VDO scanned and saw VDO definition on drive so freeked some ansible wizard script out).

Now cluster is up.. but then went to add "production" gluster +VDO and "staging" gluster + vdo volumes... and having issues.

Sorry for long back story but I think this will add color to issues.

My Thoughts as to root issues

1) HCI wizard has issues just using drives told, and ignoring other data drives in system ... VDO as example I saw notes about failed attempt ... but it should not have touched that volume... just used one it needed and igored rest.

2) HCI wizard bug of ignoring user set /dev/sd? for each server again, was another failure attempt where clean up may not have run. (noted this in posting about manual edit .. and apply button :P to ingest)

3) HCI wizard bug of name I was using of device ID vs /sd? which is IMAO ... bad form.. but name too long.. again. another cleanup where things may not have fully cleaned.. or I forgot to click clean ... where system was left in non-pristine state

2) HCI wizard does NOT clean itself up properly if it fails ... or when I ran clean up, maybe it did not complete and I closed wizard which then created this orphaned state.

3) HCI Setup and post setup needs to add filtering

With a perfect and pristine process .. it ran. But only when all other learning and requirements to get it just right were setup first. oVirt HCI is Soooo very close to being a great platform , well thought out and production class. Just needs some more nerds beating on it to find these cracks, and get the GUI and setup polished.

My $0.002

On Mon, Sep 21, 2020 at 8:06 AM Nir Soffer <nsoffer@redhat.com> wrote:

On Mon, Sep 21, 2020 at 9:02 AM Jeremey Wise <jeremey.wise@gmail.com> wrote:
>
>
>
>
>
>
> vdo: ERROR - Device /dev/sdc excluded by a filter
>
>
>
>
>
> Other server
>
> vdo: ERROR - Device /dev/mapper/nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001p1 excluded by a filter.
>
>
>
> All systems when I go to create VDO volume on blank drives.. I get this filter error. All disk outside of the HCI wizard setup are now blocked from creating new Gluster volume group.
>
> Here is what I see in /dev/lvm/lvm.conf |grep filter
> [root@odin ~]# cat /etc/lvm/lvm.conf |grep filter
> filter = ["a|^/dev/disk/by-id/lvm-pv-uuid-e1fvwo-kEfX-v3lT-SKBp-cgze-TwsO-PtyvmC$|", "a|^/dev/disk/by-id/lvm-pv-uuid-mr9awW-oQH5-F4IX-CbEO-RgJZ-x4jK-e4YZS1$|", "r|.*|"]

This filter is correct for a normal oVirt host. But gluster wants to
use more local disks,
so you should:

1. remove the lvm filter
2. configure gluster
3. create the lvm filter

This will create a filter including all the mounted logical volumes
created by gluster.

Can you explain how do you reproduce this?

The lvm filter is created when you add a host to engine. Did you add the host
to engine before configuring gluster? Or maybe you are trying to add a host that
was used previously by oVirt?

In the last case, removing the filter before installing gluster will
fix the issue.

Nir

> [root@odin ~]# ls -al /dev/disk/by-id/
> total 0
> drwxr-xr-x. 2 root root 1220 Sep 18 14:32 .
> drwxr-xr-x. 6 root root 120 Sep 18 14:32 ..
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 ata-INTEL_SSDSC2BB080G4_BTWL40350DXP080KGN -> ../../sda
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 ata-INTEL_SSDSC2BB080G4_BTWL40350DXP080KGN-part1 -> ../../sda1
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 ata-INTEL_SSDSC2BB080G4_BTWL40350DXP080KGN-part2 -> ../../sda2
> lrwxrwxrwx. 1 root root 9 Sep 18 14:32 ata-Micron_1100_MTFDDAV512TBN_17401F699137 -> ../../sdb
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 ata-WDC_WDS100T2B0B-00YS70_183533804564 -> ../../sdc
> lrwxrwxrwx. 1 root root 10 Sep 18 16:40 dm-name-cl-home -> ../../dm-2
> lrwxrwxrwx. 1 root root 10 Sep 18 16:40 dm-name-cl-root -> ../../dm-0
> lrwxrwxrwx. 1 root root 10 Sep 18 16:40 dm-name-cl-swap -> ../../dm-1
> lrwxrwxrwx. 1 root root 11 Sep 18 16:40 dm-name-gluster_vg_sdb-gluster_lv_data -> ../../dm-11
> lrwxrwxrwx. 1 root root 10 Sep 18 16:40 dm-name-gluster_vg_sdb-gluster_lv_engine -> ../../dm-6
> lrwxrwxrwx. 1 root root 11 Sep 18 16:40 dm-name-gluster_vg_sdb-gluster_lv_vmstore -> ../../dm-12
> lrwxrwxrwx. 1 root root 10 Sep 18 23:35 dm-name-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001 -> ../../dm-3
> lrwxrwxrwx. 1 root root 10 Sep 18 23:49 dm-name-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001p1 -> ../../dm-4
> lrwxrwxrwx. 1 root root 10 Sep 18 14:32 dm-name-vdo_sdb -> ../../dm-5
> lrwxrwxrwx. 1 root root 10 Sep 18 16:40 dm-uuid-LVM-GpvYIuypEfrR7nEDn5uHPenKwjrsn4ADc49gc6PWLRBCoJ2B3JC9tDJejyx5eDPT -> ../../dm-1
> lrwxrwxrwx. 1 root root 10 Sep 18 16:40 dm-uuid-LVM-GpvYIuypEfrR7nEDn5uHPenKwjrsn4ADOMNJfgcat9ZLOpcNO7FyG8ixcl5s93TU -> ../../dm-2
> lrwxrwxrwx. 1 root root 10 Sep 18 16:40 dm-uuid-LVM-GpvYIuypEfrR7nEDn5uHPenKwjrsn4ADzqPGk0yTQ19FIqgoAfsCxWg7cDMtl71r -> ../../dm-0
> lrwxrwxrwx. 1 root root 10 Sep 18 16:40 dm-uuid-LVM-ikNfztYY7KGT1SI2WYXPz4DhM2cyTelOq6Om5comvRFWJDbtVZAKtE5YGl4jciP9 -> ../../dm-6
> lrwxrwxrwx. 1 root root 11 Sep 18 16:40 dm-uuid-LVM-ikNfztYY7KGT1SI2WYXPz4DhM2cyTelOqVheASEgerWSEIkjM1BR3us3D9ekHt0L -> ../../dm-11
> lrwxrwxrwx. 1 root root 11 Sep 18 16:40 dm-uuid-LVM-ikNfztYY7KGT1SI2WYXPz4DhM2cyTelOQz6vXuivIfup6cquKAjPof8wIGOSe4Vz -> ../../dm-12
> lrwxrwxrwx. 1 root root 10 Sep 18 23:35 dm-uuid-mpath-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001 -> ../../dm-3
> lrwxrwxrwx. 1 root root 10 Sep 18 23:49 dm-uuid-part1-mpath-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001 -> ../../dm-4
> lrwxrwxrwx. 1 root root 10 Sep 18 14:32 dm-uuid-VDO-472035cc-8d2b-40ac-afe9-fa60b62a887f -> ../../dm-5
> lrwxrwxrwx. 1 root root 10 Sep 18 14:32 lvm-pv-uuid-e1fvwo-kEfX-v3lT-SKBp-cgze-TwsO-PtyvmC -> ../../dm-5
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 lvm-pv-uuid-mr9awW-oQH5-F4IX-CbEO-RgJZ-x4jK-e4YZS1 -> ../../sda2
> lrwxrwxrwx. 1 root root 13 Sep 18 14:32 nvme-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001 -> ../../nvme0n1
> lrwxrwxrwx. 1 root root 15 Sep 18 14:32 nvme-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001-part1 -> ../../nvme0n1p1
> lrwxrwxrwx. 1 root root 13 Sep 18 14:32 nvme-SPCC_M.2_PCIe_SSD_AA000000000000002458 -> ../../nvme0n1
> lrwxrwxrwx. 1 root root 15 Sep 18 14:32 nvme-SPCC_M.2_PCIe_SSD_AA000000000000002458-part1 -> ../../nvme0n1p1
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 scsi-0ATA_INTEL_SSDSC2BB08_BTWL40350DXP080KGN -> ../../sda
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 scsi-0ATA_INTEL_SSDSC2BB08_BTWL40350DXP080KGN-part1 -> ../../sda1
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 scsi-0ATA_INTEL_SSDSC2BB08_BTWL40350DXP080KGN-part2 -> ../../sda2
> lrwxrwxrwx. 1 root root 9 Sep 18 14:32 scsi-0ATA_Micron_1100_MTFD_17401F699137 -> ../../sdb
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 scsi-0ATA_WDC_WDS100T2B0B-_183533804564 -> ../../sdc
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 scsi-1ATA_INTEL_SSDSC2BB080G4_BTWL40350DXP080KGN -> ../../sda
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 scsi-1ATA_INTEL_SSDSC2BB080G4_BTWL40350DXP080KGN-part1 -> ../../sda1
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 scsi-1ATA_INTEL_SSDSC2BB080G4_BTWL40350DXP080KGN-part2 -> ../../sda2
> lrwxrwxrwx. 1 root root 9 Sep 18 14:32 scsi-1ATA_Micron_1100_MTFDDAV512TBN_17401F699137 -> ../../sdb
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 scsi-1ATA_WDC_WDS100T2B0B-00YS70_183533804564 -> ../../sdc
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 scsi-35001b448b9608d90 -> ../../sdc
> lrwxrwxrwx. 1 root root 9 Sep 18 14:32 scsi-3500a07511f699137 -> ../../sdb
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 scsi-355cd2e404b581cc0 -> ../../sda
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 scsi-355cd2e404b581cc0-part1 -> ../../sda1
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 scsi-355cd2e404b581cc0-part2 -> ../../sda2
> lrwxrwxrwx. 1 root root 10 Sep 18 23:35 scsi-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001 -> ../../dm-3
> lrwxrwxrwx. 1 root root 10 Sep 18 23:49 scsi-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001-part1 -> ../../dm-4
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 scsi-SATA_INTEL_SSDSC2BB08_BTWL40350DXP080KGN -> ../../sda
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 scsi-SATA_INTEL_SSDSC2BB08_BTWL40350DXP080KGN-part1 -> ../../sda1
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 scsi-SATA_INTEL_SSDSC2BB08_BTWL40350DXP080KGN-part2 -> ../../sda2
> lrwxrwxrwx. 1 root root 9 Sep 18 14:32 scsi-SATA_Micron_1100_MTFD_17401F699137 -> ../../sdb
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 scsi-SATA_WDC_WDS100T2B0B-_183533804564 -> ../../sdc
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 wwn-0x5001b448b9608d90 -> ../../sdc
> lrwxrwxrwx. 1 root root 9 Sep 18 14:32 wwn-0x500a07511f699137 -> ../../sdb
> lrwxrwxrwx. 1 root root 9 Sep 18 22:40 wwn-0x55cd2e404b581cc0 -> ../../sda
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 wwn-0x55cd2e404b581cc0-part1 -> ../../sda1
> lrwxrwxrwx. 1 root root 10 Sep 18 22:40 wwn-0x55cd2e404b581cc0-part2 -> ../../sda2
> lrwxrwxrwx. 1 root root 10 Sep 18 23:35 wwn-0xvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001 -> ../../dm-3
> lrwxrwxrwx. 1 root root 10 Sep 18 23:49 wwn-0xvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001-part1 -> ../../dm-4
> lrwxrwxrwx. 1 root root 15 Sep 18 14:32 wwn-nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001-part1 -> ../../nvme0n1p1
> [root@odin ~]# ls -al /dev/disk/by-id/
>
> So filter notes three objects:
> lvm-pv-uuid-e1fvwo.... -> dm-5 ->vdo_sdb (used by HCI for all the three gluster base volumes )
> lvm-pv-uuid-mr9awW... -> sda2 -> boot volume
>
> [root@odin ~]# lsblk
> NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
> sda 8:0 0 74.5G 0 disk
> ├─sda1 8:1 0 1G 0 part /boot
> └─sda2 8:2 0 73.5G 0 part
> ├─cl-root 253:0 0 44.4G 0 lvm /
> ├─cl-swap 253:1 0 7.5G 0 lvm [SWAP]
> └─cl-home 253:2 0 21.7G 0 lvm /home
> sdb 8:16 0 477G 0 disk
> └─vdo_sdb 253:5 0 2.1T 0 vdo
> ├─gluster_vg_sdb-gluster_lv_engine 253:6 0 100G 0 lvm /gluster_bricks/engine
> ├─gluster_vg_sdb-gluster_thinpool_gluster_vg_sdb_tmeta 253:7 0 1G 0 lvm
> │ └─gluster_vg_sdb-gluster_thinpool_gluster_vg_sdb-tpool 253:9 0 2T 0 lvm
> │ ├─gluster_vg_sdb-gluster_thinpool_gluster_vg_sdb 253:10 0 2T 1 lvm
> │ ├─gluster_vg_sdb-gluster_lv_data 253:11 0 1000G 0 lvm /gluster_bricks/data
> │ └─gluster_vg_sdb-gluster_lv_vmstore 253:12 0 1000G 0 lvm /gluster_bricks/vmstore
> └─gluster_vg_sdb-gluster_thinpool_gluster_vg_sdb_tdata 253:8 0 2T 0 lvm
> └─gluster_vg_sdb-gluster_thinpool_gluster_vg_sdb-tpool 253:9 0 2T 0 lvm
> ├─gluster_vg_sdb-gluster_thinpool_gluster_vg_sdb 253:10 0 2T 1 lvm
> ├─gluster_vg_sdb-gluster_lv_data 253:11 0 1000G 0 lvm /gluster_bricks/data
> └─gluster_vg_sdb-gluster_lv_vmstore 253:12 0 1000G 0 lvm /gluster_bricks/vmstore
> sdc 8:32 0 931.5G 0 disk
> nvme0n1 259:0 0 953.9G 0 disk
> ├─nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001 253:3 0 953.9G 0 mpath
> │ └─nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001p1 253:4 0 953.9G 0 part
> └─nvme0n1p1
>
> So I don't think this is LVM filtering things
>
> Multipath showing weird treatment of the NVMe drive.. but that is outside this converstation
> [root@odin ~]# multipath -l
> nvme.126f-4141303030303030303030303030303032343538-53504343204d2e32205043496520535344-00000001 dm-3 NVME,SPCC M.2 PCIe SSD
> size=954G features='1 queue_if_no_path' hwhandler='0' wp=rw
> `-+- policy='service-time 0' prio=0 status=active
> `- 0:1:1:1 nvme0n1 259:0 active undef running
> [root@odin ~]#
>
> Where is getting this filter.
> I have done gdisk /dev/sdc ( new 1TB Drive) and shows no partition. I even did a full dd if=/dev/zero and no change.
>
> I reloaded OS on system to get through wizard setup. Now that all three nodes are in the HCI cluster.. all six drives (2 x 1TB in each server) are now locked from any use due to this error about filter.
>
> Ideas?
>
> --
> jeremey.wise@gmail.com
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