[lustre-discuss] Lnet problems on 2.12.2/2.12.3

2020-02-06 Thread BASDEN, ALASTAIR G.
Hi, We are mounting a 2.12.2 server on a 2.12.3 client. Both have @o2ib and @tcp networks. However, there is no link between them on the @o2ib. We are therefore mounting on @tcp, have network=tcp0 in the fstab, and have switched discovery off. This works, metadata can be read and created, and

[lustre-discuss] Zfs backend file system level backup

2020-01-29 Thread BASDEN, ALASTAIR G.
Hi, I wish to perform a zfs backend file system level backup. The Lustre manual says to to: lctl set_param osd-zfs.${fsname}-${target}.index_backup=1 Does this have to be done right at the start before the file system has been used, or can it be done to a live file system with data already on

Re: [lustre-discuss] 2.12.2 mds problems

2019-12-05 Thread BASDEN, ALASTAIR G.
> Stephane > >> On Nov 20, 2019, at 7:29 AM, BASDEN, ALASTAIR G. >> wrote: >> >> Hi, >> >> We have a new 2.12.2 system, and are seeing fairly frequent lockups on the >> primary mds. We get messages such as: >> >> Nov 20 14:24:12 c6mds1 ke

[lustre-discuss] 2.12.2 mds problems

2019-11-20 Thread BASDEN, ALASTAIR G.
Hi, We have a new 2.12.2 system, and are seeing fairly frequent lockups on the primary mds. We get messages such as: Nov 20 14:24:12 c6mds1 kernel: LustreError: 38853:0:(ldlm_lockd.c:256:expired_lock_main()) ### lock callback timer expired after 150s: evicting client at 172.18.122.165@o2ib n

Re: [lustre-discuss] zfs mounting

2019-07-26 Thread BASDEN, ALASTAIR G.
/lustre/test-ost0 ... Thanks for the responses. Cheers, Alastair. On Thu, 25 Jul 2019, BASDEN, ALASTAIR G. wrote: > Hi, > > I am trying to bring up a new zfs backend file system. > CentOS 7.4, Lustre 2.10.3, zfs 0.7.12. > > I do the following: > zpool create -O canmount=off -

[lustre-discuss] zfs mounting

2019-07-25 Thread BASDEN, ALASTAIR G.
Hi, I am trying to bring up a new zfs backend file system. CentOS 7.4, Lustre 2.10.3, zfs 0.7.12. I do the following: zpool create -O canmount=off -o cachefile=none test-ost0 raidz2 mkfs.lustre --fsname=test --ost --backfstype=zfs --index=0 --mgsnode=nid1 test-ost0/ost0 This seems to work