Re: [lustre-discuss] Experience with resizing MDT

2018-09-27 Thread Andreas Dilger
On Sep 27, 2018, at 17:00, Patrick Farrell wrote: > > Andreas, > > Take a closer look. It doesn't look to be connected to anything (this is > current master). This is all the instances of it I see: > > C symbol: mdt_enable_remote_dir > > File Function Line > 0 md

Re: [lustre-discuss] Experience with resizing MDT

2018-09-27 Thread Patrick Farrell
Andreas, Take a closer look. It doesn't look to be connected to anything (this is current master). This is all the instances of it I see: C symbol: mdt_enable_remote_dir File Function Line 0 mdt_internal.h251 mdt_enable_remote_dir:1, 1 mdt_lpro

Re: [lustre-discuss] Experience with resizing MDT

2018-09-27 Thread Andreas Dilger
On Sep 27, 2018, at 04:13, Cory Spitz wrote: > > Hello, all. > >> If you set mdt.*.enable_remote_dir=1 then you can create directories that >> point back and forth across MDTs > > I thought enable_remote_dir would be useful too, but it turns out that it has > changed. Patrick F. pointed out

Re: [lustre-discuss] Experience with resizing MDT

2018-09-26 Thread Cory Spitz
Hello, all. > If you set mdt.*.enable_remote_dir=1 then you can create directories that > point back and forth across MDTs I thought enable_remote_dir would be useful too, but it turns out that it has changed. Patrick F. pointed out to me that it was gutted when LU-3537 was landed for L2.8.

Re: [lustre-discuss] Experience with resizing MDT

2018-09-21 Thread Andreas Dilger
On Sep 20, 2018, at 16:38, Mohr Jr, Richard Frank (Rick Mohr) wrote: > > >> On Sep 19, 2018, at 8:09 PM, Colin Faber wrote: >> >> Why wouldn't you use DNE? > > I am considering it as an option, but there appear to be some potential > drawbacks. > > If I use DNE1, then I have to manually cr

Re: [lustre-discuss] Experience with resizing MDT

2018-09-20 Thread Mohr Jr, Richard Frank (Rick Mohr)
> On Sep 19, 2018, at 8:09 PM, Colin Faber wrote: > > Why wouldn't you use DNE? I am considering it as an option, but there appear to be some potential drawbacks. If I use DNE1, then I have to manually create directories on specific MDTs. I will need to monitor MDT usage and make adjustment

Re: [lustre-discuss] Experience with resizing MDT

2018-09-20 Thread Andreas Dilger
On Sep 19, 2018, at 18:49, Mohr Jr, Richard Frank (Rick Mohr) wrote: > > Has anyone had recent experience resizing a ldiskfs-backed MDT using the > resize2fs tool? We may be purchasing a small lustre file system in the near > future with the expectation that it could grow considerably over ti

Re: [lustre-discuss] Experience with resizing MDT

2018-09-19 Thread Colin Faber
Why wouldn't you use DNE? On Wed, Sep 19, 2018, 4:49 PM Mohr Jr, Richard Frank (Rick Mohr) < rm...@utk.edu> wrote: > Has anyone had recent experience resizing a ldiskfs-backed MDT using the > resize2fs tool? We may be purchasing a small lustre file system in the > near future with the expectatio

[lustre-discuss] Experience with resizing MDT

2018-09-19 Thread Mohr Jr, Richard Frank (Rick Mohr)
Has anyone had recent experience resizing a ldiskfs-backed MDT using the resize2fs tool? We may be purchasing a small lustre file system in the near future with the expectation that it could grow considerably over time. Since we don’t have a clear idea of how many inodes we might need in the f