cd to inside the pool path then dd if=/dev/zero of=test.tt bs=1M leave it runing 5/10 minutes. do ctrl+c paste result here. etc. 2017-03-03 11:30 GMT-03:00 Arman Khalatyan <arm2arm@gmail.com>:
No, I have one pool made of the one disk and ssd as a cache and log device. I have 3 Glusterfs bricks- separate 3 hosts:Volume type Replicate (Arbiter)= replica 2+1! That how much you can push into compute nodes(they have only 3 disk slots).
On Fri, Mar 3, 2017 at 3:19 PM, Juan Pablo <pablo.localhost@gmail.com> wrote:
ok, you have 3 pools, zclei22, logs and cache, thats wrong. you should have 1 pool, with zlog+cache if you are looking for performance. also, dont mix drives. whats the performance issue you are facing?
regards,
2017-03-03 11:00 GMT-03:00 Arman Khalatyan <arm2arm@gmail.com>:
This is CentOS 7.3 ZoL version 0.6.5.9-1
[root@clei22 ~]# lsscsi
[2:0:0:0] disk ATA INTEL SSDSC2CW24 400i /dev/sda
[3:0:0:0] disk ATA HGST HUS724040AL AA70 /dev/sdb
[4:0:0:0] disk ATA WDC WD2002FYPS-0 1G01 /dev/sdc
[root@clei22 ~]# pvs ;vgs;lvs
PV VG Fmt Attr PSize PFree
/dev/mapper/INTEL_SSDSC2CW240A3_CVCV306302RP240CGN vg_cache lvm2 a-- 223.57g 0
/dev/sdc2 centos_clei22 lvm2 a-- 1.82t 64.00m
VG #PV #LV #SN Attr VSize VFree
centos_clei22 1 3 0 wz--n- 1.82t 64.00m
vg_cache 1 2 0 wz--n- 223.57g 0
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
home centos_clei22 -wi-ao---- 1.74t
root centos_clei22 -wi-ao---- 50.00g
swap centos_clei22 -wi-ao---- 31.44g
lv_cache vg_cache -wi-ao---- 213.57g
lv_slog vg_cache -wi-ao---- 10.00g
[root@clei22 ~]# zpool status -v
pool: zclei22
state: ONLINE
scan: scrub repaired 0 in 0h0m with 0 errors on Tue Feb 28 14:16:07 2017
config:
NAME STATE READ WRITE CKSUM
zclei22 ONLINE 0 0 0
HGST_HUS724040ALA640_PN2334PBJ4SV6T1 ONLINE 0 0 0
logs
lv_slog ONLINE 0 0 0
cache
lv_cache ONLINE 0 0 0
errors: No known data errors
*ZFS config:*
[root@clei22 ~]# zfs get all zclei22/01
NAME PROPERTY VALUE SOURCE
zclei22/01 type filesystem -
zclei22/01 creation Tue Feb 28 14:06 2017 -
zclei22/01 used 389G -
zclei22/01 available 3.13T -
zclei22/01 referenced 389G -
zclei22/01 compressratio 1.01x -
zclei22/01 mounted yes -
zclei22/01 quota none default
zclei22/01 reservation none default
zclei22/01 recordsize 128K local
zclei22/01 mountpoint /zclei22/01 default
zclei22/01 sharenfs off default
zclei22/01 checksum on default
zclei22/01 compression off local
zclei22/01 atime on default
zclei22/01 devices on default
zclei22/01 exec on default
zclei22/01 setuid on default
zclei22/01 readonly off default
zclei22/01 zoned off default
zclei22/01 snapdir hidden default
zclei22/01 aclinherit restricted default
zclei22/01 canmount on default
zclei22/01 xattr sa local
zclei22/01 copies 1 default
zclei22/01 version 5 -
zclei22/01 utf8only off -
zclei22/01 normalization none -
zclei22/01 casesensitivity sensitive -
zclei22/01 vscan off default
zclei22/01 nbmand off default
zclei22/01 sharesmb off default
zclei22/01 refquota none default
zclei22/01 refreservation none default
zclei22/01 primarycache metadata local
zclei22/01 secondarycache metadata local
zclei22/01 usedbysnapshots 0 -
zclei22/01 usedbydataset 389G -
zclei22/01 usedbychildren 0 -
zclei22/01 usedbyrefreservation 0 -
zclei22/01 logbias latency default
zclei22/01 dedup off default
zclei22/01 mlslabel none default
zclei22/01 sync disabled local
zclei22/01 refcompressratio 1.01x -
zclei22/01 written 389G -
zclei22/01 logicalused 396G -
zclei22/01 logicalreferenced 396G -
zclei22/01 filesystem_limit none default
zclei22/01 snapshot_limit none default
zclei22/01 filesystem_count none default
zclei22/01 snapshot_count none default
zclei22/01 snapdev hidden default
zclei22/01 acltype off default
zclei22/01 context none default
zclei22/01 fscontext none default
zclei22/01 defcontext none default
zclei22/01 rootcontext none default
zclei22/01 relatime off default
zclei22/01 redundant_metadata all default
zclei22/01 overlay off default
On Fri, Mar 3, 2017 at 2:52 PM, Juan Pablo <pablo.localhost@gmail.com> wrote:
Which operating system version are you using for your zfs storage? do: zfs get all your-pool-name use arc_summary.py from freenas git repo if you wish.
2017-03-03 10:33 GMT-03:00 Arman Khalatyan <arm2arm@gmail.com>:
Pool load: [root@clei21 ~]# zpool iostat -v 1 capacity operations bandwidth pool alloc free read write read write -------------------------------------- ----- ----- ----- ----- ----- ----- zclei21 10.1G 3.62T 0 112 823 8.82M HGST_HUS724040ALA640_PN2334PBJ52XWT1 10.1G 3.62T 0 46 626 4.40M logs - - - - - - lv_slog 225M 9.72G 0 66 198 4.45M cache - - - - - - lv_cache 9.81G 204G 0 46 56 4.13M -------------------------------------- ----- ----- ----- ----- ----- -----
capacity operations bandwidth pool alloc free read write read write -------------------------------------- ----- ----- ----- ----- ----- ----- zclei21 10.1G 3.62T 0 191 0 12.8M HGST_HUS724040ALA640_PN2334PBJ52XWT1 10.1G 3.62T 0 0 0 0 logs - - - - - - lv_slog 225M 9.72G 0 191 0 12.8M cache - - - - - - lv_cache 9.83G 204G 0 218 0 20.0M -------------------------------------- ----- ----- ----- ----- ----- -----
capacity operations bandwidth pool alloc free read write read write -------------------------------------- ----- ----- ----- ----- ----- ----- zclei21 10.1G 3.62T 0 191 0 12.7M HGST_HUS724040ALA640_PN2334PBJ52XWT1 10.1G 3.62T 0 0 0 0 logs - - - - - - lv_slog 225M 9.72G 0 191 0 12.7M cache - - - - - - lv_cache 9.83G 204G 0 72 0 7.68M -------------------------------------- ----- ----- ----- ----- ----- -----
On Fri, Mar 3, 2017 at 2:32 PM, Arman Khalatyan <arm2arm@gmail.com> wrote:
Glusterfs now in healing mode: Receiver: [root@clei21 ~]# arcstat.py 1 time read miss miss% dmis dm% pmis pm% mmis mm% arcsz c 13:24:49 0 0 0 0 0 0 0 0 0 4.6G 31G 13:24:50 154 80 51 80 51 0 0 80 51 4.6G 31G 13:24:51 179 62 34 62 34 0 0 62 42 4.6G 31G 13:24:52 148 68 45 68 45 0 0 68 45 4.6G 31G 13:24:53 140 64 45 64 45 0 0 64 45 4.6G 31G 13:24:54 124 48 38 48 38 0 0 48 38 4.6G 31G 13:24:55 157 80 50 80 50 0 0 80 50 4.7G 31G 13:24:56 202 68 33 68 33 0 0 68 41 4.7G 31G 13:24:57 127 54 42 54 42 0 0 54 42 4.7G 31G 13:24:58 126 50 39 50 39 0 0 50 39 4.7G 31G 13:24:59 116 40 34 40 34 0 0 40 34 4.7G 31G
Sender [root@clei22 ~]# arcstat.py 1 time read miss miss% dmis dm% pmis pm% mmis mm% arcsz c 13:28:37 8 2 25 2 25 0 0 2 25 468M 31G 13:28:38 1.2K 727 62 727 62 0 0 525 54 469M 31G 13:28:39 815 508 62 508 62 0 0 376 55 469M 31G 13:28:40 994 624 62 624 62 0 0 450 54 469M 31G 13:28:41 783 456 58 456 58 0 0 338 50 470M 31G 13:28:42 916 541 59 541 59 0 0 390 50 470M 31G 13:28:43 768 437 56 437 57 0 0 313 48 471M 31G 13:28:44 877 534 60 534 60 0 0 393 53 470M 31G 13:28:45 957 630 65 630 65 0 0 450 57 470M 31G 13:28:46 819 479 58 479 58 0 0 357 51 471M 31G
On Thu, Mar 2, 2017 at 7:18 PM, Juan Pablo <pablo.localhost@gmail.com > wrote:
> hey, > what are you using for zfs? get an arc status and show please > > > 2017-03-02 9:57 GMT-03:00 Arman Khalatyan <arm2arm@gmail.com>: > >> no, >> ZFS itself is not on top of lvm. only ssd was spitted by lvm for >> slog(10G) and cache (the rest) >> but in any-case the ssd does not help much on glusterfs/ovirt load >> it has almost 100% cache misses....:( (terrible performance compare with >> nfs) >> >> >> >> >> >> On Thu, Mar 2, 2017 at 1:47 PM, FERNANDO FREDIANI < >> fernando.frediani@upx.com> wrote: >> >>> Am I understanding correctly, but you have Gluster on the top of >>> ZFS which is on the top of LVM ? If so, why the usage of LVM was necessary >>> ? I have ZFS with any need of LVM. >>> >>> Fernando >>> >>> On 02/03/2017 06:19, Arman Khalatyan wrote: >>> >>> Hi, >>> I use 3 nodes with zfs and glusterfs. >>> Are there any suggestions to optimize it? >>> >>> host zfs config 4TB-HDD+250GB-SSD: >>> [root@clei22 ~]# zpool status >>> pool: zclei22 >>> state: ONLINE >>> scan: scrub repaired 0 in 0h0m with 0 errors on Tue Feb 28 >>> 14:16:07 2017 >>> config: >>> >>> NAME STATE READ WRITE >>> CKSUM >>> zclei22 ONLINE 0 >>> 0 0 >>> HGST_HUS724040ALA640_PN2334PBJ4SV6T1 ONLINE 0 >>> 0 0 >>> logs >>> lv_slog ONLINE 0 >>> 0 0 >>> cache >>> lv_cache ONLINE 0 >>> 0 0 >>> >>> errors: No known data errors >>> >>> Name: >>> GluReplica >>> Volume ID: >>> ee686dfe-203a-4caa-a691-26353460cc48 >>> Volume Type: >>> Replicate (Arbiter) >>> Replica Count: >>> 2 + 1 >>> Number of Bricks: >>> 3 >>> Transport Types: >>> TCP, RDMA >>> Maximum no of snapshots: >>> 256 >>> Capacity: >>> 3.51 TiB total, 190.56 GiB used, 3.33 TiB free >>> >>> >>> _______________________________________________ >>> Users mailing listUsers@ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users >>> >>> >>> >>> _______________________________________________ >>> Users mailing list >>> Users@ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >>> >>> >> >> _______________________________________________ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> >> >