Re: [gpfsug-discuss] Removing LUN from host without unconfiguring GPFS filesystem

2018-01-22 Thread Harold Morales
Thanks Stephen and Jonathan for pointing this important things out. Now I begin to understand the importance of mmimportfs/mmexportfs for operations like the one I discuss here. Will let you know how it goes. 2018-01-22 4:57 GMT-05:00 Jonathan Buzzard : > On

Re: [gpfsug-discuss] Removing LUN from host without unconfiguring GPFS filesystem

2018-01-22 Thread Jonathan Buzzard
On 22/01/18 03:41, Stephen Ulmer wrote: Harold, The way I read your question, no one has actually answered it fully: You want to put the old file system in cold storage for forensic purposes — exactly as it is. You want the NSDs to go away until and unless you need them in the future.

Re: [gpfsug-discuss] Removing LUN from host without unconfiguring GPFS filesystem

2018-01-21 Thread Stephen Ulmer
Sent by: gpfsug-discuss-boun...@spectrumscale.org > <mailto:gpfsug-discuss-boun...@spectrumscale.org> > To: gpfsug-discuss@spectrumscale.org <mailto:gpfsug-discuss@spectrumscale.org> > Cc: > Subject: [gpfsug-discuss] Removing LUN from host without unconfiguring GPFS > files

[gpfsug-discuss] Removing LUN from host without unconfiguring GPFS filesystem

2018-01-21 Thread Harold Morales
Hello, I have a GPFS cluster with two filesystems. The disks associated to one filesystem reside on an old storage and the other filesystem disks reside on a much more modern storage system. I have successfully moved data from one fs to the other but there are questions about data integrity that