[lustre-discuss] bad performance with Lustre/ZFS on NVMe SSD

So I'm struggling since months with these low performances on Lsutre/ZFS. Looking for hints. 3 OSSes, RHEL 74  Lustre 2.10.3 and zfs 0.7.6 each OSS has one  OST raidz   pool: drpffb-ost01  state: ONLINE   scan: none requested   trim: completed on Fri Apr  6 21:53:04 2018 (after 0h3m) config:  

Re: [lustre-discuss] Upgrade to 2.11: unrecognized mount option

On Apr 6, 2018, at 06:27, Thomas Roth wrote: > > Hi all, > > (don't know if it isn't a bit early to complain yet, but) > I have upgraded an OSS and MDS von 2.10.2 to 2.11.0, just installing the > downloaded rpms - no issues here, except when mounting the MDS: > > > LDISKFS-fs

Re: [lustre-discuss] Adding a servicenode (failnode) to existing OSTs

Hi all, Thanks for the info. Very helpful! Best, ---Steve On 4/4/18 12:07 PM, Mohr Jr, Richard Frank (Rick Mohr) wrote: On Apr 3, 2018, at 1:14 PM, Steve Barnet wrote: There appear to be a couple ways that this could be done: a) Add the service nodes:

Re: [lustre-discuss] 2.10.0 CentOS6.9 ksoftirqd CPU load

Just for the record. 2.11.0 has fixed this. Not sure which LU though. Cheers, Hans Henrik On 30-09-2017 23:43, Hans Henrik Happe wrote: On 27-09-2017 18:50, Dilger, Andreas wrote: On Sep 26, 2017, at 01:10, Hans Henrik Happe wrote: Hi, Did anyone else experience CPU load from

[lustre-discuss] Upgrade to 2.11: unrecognized mount option

Hi all, (don't know if it isn't a bit early to complain yet, but) I have upgraded an OSS and MDS von 2.10.2 to 2.11.0, just installing the downloaded rpms - no issues here, except when mounting the MDS: > LDISKFS-fs (drbd0): Unrecognized mount option

Re: [lustre-discuss] DoM question

On Apr 5, 2018, at 03:01, Martin BALVERS wrote: > > I have a question about the new Data on MDT feature. > The default dom_stripesize is 1M, does this mean that smaller files will > also consume 1M on the MDT ? > > I was thinking of using this for my home dirs, but

Re: [lustre-discuss] /proc/fs/lustre/llite/*/stats

On Apr 5, 2018, at 19:44, Faaland, Olaf P. wrote: > > Hi, > > I have a couple of questions about these stats. If these are documented > somewhere, by all means point me to them. What I found in the operations > manual and on the web did not answer my questions. > > What