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Re: Add OSD with primary on HDD, WAL and DB on SSD
by Lindsay Mathieson 25 Aug '20

25 Aug '20

On 25/08/2020 6:07 am, Tony Liu wrote: > I don't need to create > WAL device, just primary on HDD and DB on SSD, and WAL will be > using DB device cause it's faster. Is that correct? Yes. But be aware that the DB sizes are limited to 3GB, 30GB and 300GB. Anything less than those sizes will have a lot of untilised space, e.g a 20GB device will only utilise 3GB. -- Lindsay

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Re: Add OSD with primary on HDD, WAL and DB on SSD
by ceph＠elchaka.de 25 Aug '20

25 Aug '20

Hi, you could try to use ceph-volume lvm create --data DEV --db DEV.... and inspect the output to learn what is being done. I am not sure about the right Syntax now but you should find related Information via search ... Hth Mehmet Am 23. August 2020 05:52:29 MESZ schrieb Tony Liu <tonyliu0592(a)hotmail.com>: >Hi, > >I am able to add OSD with primary on HDD, WAL and DB on SSD >on dashboard. LVs are created on SSD for OSDs. >How can I achieve the same by CLI? > >I tried with drivegroups, which adds OSD, but not WAL and DB. >Should I handle LV for WAL and DB separately? >Anything I am missing here? > > >Thanks! > >Tony > > >_______________________________________________ >ceph-users mailing list -- ceph-users(a)ceph.io >To unsubscribe send an email to ceph-users-leave(a)ceph.io

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Re: Add OSD with primary on HDD, WAL and DB on SSD
by Eugen Block 25 Aug '20

25 Aug '20

Hi, if you shared your drivegroup config we might be able to help identify your issue. ;-) The last example in [1] shows the "wal_devices" filter for splitting wal and db. Regards, Eugen [1] https://docs.ceph.com/docs/master/cephadm/drivegroups/#dedicated-wal-db Zitat von Tony Liu <tonyliu0592(a)hotmail.com>: > Hi, > > I am able to add OSD with primary on HDD, WAL and DB on SSD > on dashboard. LVs are created on SSD for OSDs. > How can I achieve the same by CLI? > > I tried with drivegroups, which adds OSD, but not WAL and DB. > Should I handle LV for WAL and DB separately? > Anything I am missing here? > > > Thanks! > > Tony > > > _______________________________________________ > ceph-users mailing list -- ceph-users(a)ceph.io > To unsubscribe send an email to ceph-users-leave(a)ceph.io

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Adding OSD
by jcharles＠provectio.fr 25 Aug '20

25 Aug '20

Hello, I just add one new osd in one of my osd hosts. Crush map is updated but nothing happen, the new osd is seen by the cluster, but norebalance occurs. I have to admit I am a bit stressed. I have my current OSD at 70-75% of capacity. May be should I add some osd to other hosts for the cluster start the rebalancing ? Thanks

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Upgrade options and *request for comment
by Ed Kalk 25 Aug '20

25 Aug '20

Hello Ceph Users, We have a Mimic 13.2.10 cluster on Ubuntu 16.04.03 with 6 servers, 36 OSDs. Each OSD has a 2GB memory target via ceph.conf (30 spin disks with HDD type and 2 pools on them (2copy and 3copy pools), 6 SSDs in a flash pool (3copy)) Our intention is to upgrade the code level of CEPH only (Ubuntu remains the same on 16.04.03) and we have the choice of goto Nautilus or goto Octopus. **Does anyone have any warning based on upgrade attempts or advisement for Nautilus or Octopus? Our primary concern is simply code stability post upgrade. -- Thank you for your time, Edward H. Kalk IV Information Technology Dept. Server Specialist Datacenter Virtualization and Storage Systems Socket Telecom, LLC. 2703 Clark Lane Columbia, MO 65202 573-817-0000 or 800-socket3 X218

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Add OSD host with not clean disks
by Tony Liu 25 Aug '20

25 Aug '20

Hi, I am trying to add a OSD host with not clean disks. I added the host. ceph orch host add storage-3 10.6.50.82 Host is added, but the disks on that host are not listed. I assume because they are not clean? I zapped all disks. ceph orch device zap storage-3 /dev/sdb ...... All disks are cleaned successfully. But I still don't see those disks listed. I tried to remove the host and add it back. ceph orch host rm storage-3 ceph orch host add storage-3 10.6.50.82 I still don't see those disks listed. Finally, I restarted mgd, then I see those disks listed. Is this expected or anything I'm missing? Thanks! Tony

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Office Setup And Product Key
by sapohoj267＠qqmimpi.com 24 Aug '20

24 Aug '20

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How to change wal block in bluestore?
by xux1217＠gmail.com 24 Aug '20

24 Aug '20

Hi, I want to change my wal device to another device. I search much time and write a shell script, but finally, when I start the osd, the process is crashed. I think something is wrong, please help me check the script. Thanks! ceph version: ceph version 14.2.9 (bed944f8c45b9c98485e99b70e11bbcec6f6659a) nautilus (stable). The shell script is below: #! /bin/bash id=$1 # osd id vg=$2 # vg name osdPath="/var/lib/ceph/osd/ceph-$id" osdService="ceph-osd(a)${id}.service" blockPath=$(ls -lh ${osdPath}/block|awk '{print $11}') if [ -z "$blockPath" ]; then echo "no block path" exit 1; fi walPath=$(ls -lh ${osdPath}/block.wal|awk '{print $11}') if [ -z "$walPath" ]; then echo "no wal path" exit 2; fi walSize=$(blockdev --getsize64 $walPath) if [ -z "$walSize" ]; then echo "no wal size" exit 3; fi walUUID=$(lvdisplay ${walPath}|grep "LV UUID"|awk '{print $3}') if [ -z "$walUUID" ]; then echo "no wal uuid" exit 3; fi newWalLv="journal-osd${id}" newWalPath="/dev/${vg}/${newWalLv}" lvcreate -n "${newWalLv}" -L${walSize}b $vg || exit 4 newWalUUID=$(lvdisplay ${newWalPath}|grep "LV UUID"|awk '{print $3}') if [ -z "$newWalUUID" ]; then echo "no new wal uuid, new wal path:${newWalPath}" exit 3; fi ceph osd set noout || exit 5 systemctl stop ${osdService} || exit 6 ceph-osd -i $id --flush-journal || exit 7 dd if=${walPath} of=${newWalPath} bs=4M || exit 8 chown -h ceph:ceph $(realpath ${newWalPath}) || exit 9 ceph-bluestore-tool bluefs-bdev-migrate --path ${osdPath} --devs-source ${osdPath}/block.wal --dev-target ${newWalPath} chown -h ceph:ceph ${osdPath}/block.wal || exit 11 # device lvchange --deltag "ceph.wal_device=${walPath}" ${blockPath} || exit 12 lvchange --addtag "ceph.wal_device=${newWalPath}" ${blockPath} || exit 13 # for uuid lvchange --deltag "ceph.wal_uuid=${walUUID}" ${blockPath} || exit 12 lvchange --addtag "ceph.wal_uuid=${newWalUUID}" ${blockPath} || exit 13 # for wal lvs for tag in $(lvs -o lv_tags ${blockPath}|grep ceph|sed 's/,/\n/g') do lvchange --addtag "$tag" ${newWalPath} done lvchange --deltag "ceph.type=block" ${newWalPath} lvchange --addtag "ceph.type=wal" ${newWalPath} systemctl start ceph-osd(a)${id}.service || exit 14 ceph osd unset noout || exit 15

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Don’t Work With The Stressed Mind Rather Use Assignment Help
by Ricky Paul 24 Aug '20

24 Aug '20

What you do when you have the pressure of producing outstanding outcomes? Does your mind feel stressed or tired? Do you feel lethargic for writing your assignment? Well, it is quite natural that you feel exhausted when you have to work under stress. Due to this, you may not pay full attention to assignments. For this, one thing you can do is to place your order for assignment help. Under these services of academic writing, you will receive effective support from professionals and experienced academic writers. They know how to write flawless assignments without losing any single information. If you don’t want to lose your marks, you must think about online academic writing services. This is because if you do work on a stressed mind, you can’t generate useful ideas for your assignments and may lose your marks. So, if you are in this situation, you need rest. Take rest and transfer your work to the assignment helper so you will not lose your marks. For more info : https://www.greatassignmenthelp.com

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Don’t Work With The Stressed Mind Rather Use Assignment Help
by Ricky Paul 24 Aug '20

24 Aug '20

What you do when you have the pressure of producing outstanding outcomes? Does your mind feel stressed or tired? Do you feel lethargic for writing your assignment? Well, it is quite natural that you feel exhausted when you have to work under stress. Due to this, you may not pay full attention to assignments. For this, one thing you can do is to place your order for assignment help. Under these services of academic writing, you will receive effective support from professionals and experienced academic writers. They know how to write flawless assignments without losing any single information. If you don’t want to lose your marks, you must think about online academic writing services. This is because if you do work on a stressed mind, you can’t generate useful ideas for your assignments and may lose your marks. So, if you are in this situation, you need rest. Take rest and transfer your work to the assignment helper so you will not lose your marks. For more info : https://www.greatassignmenthelp.com

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