Re: [lustre-discuss] re-creating a zfs OST

You should also be able to use the ZFS send/receive feature to send that pool or data set to another node, and then send it back. It’s unclear why you are draining it and recreating it, but if you are replacing the storage underneath, you can send the dataset somewhere else (another OSS node

Re: [lustre-discuss] re-creating a zfs OST

Thank you, Andreas. As always, your answers are the best. bob On 1/13/2016 10:14 PM, Dilger, Andreas wrote: On 2016/01/12, 12:50, "lustre-discuss on behalf of Bob Ball" wrote: I have a zfs OST that I need to drain and

Re: [lustre-discuss] re-creating a zfs OST

We’ve all done that at one point or another. Read the man page of ZFS. It saves you from having to do a backup/restore, as it will send the entire data set to another host. Depending on how much storage you have available (or how full your file system is) you may not even have to drain it

Re: [lustre-discuss] re-creating a zfs OST

I have to re-create because I borked up the underlying disks when they were first configured, leaving a singleton disk in the pool with no replica, and I'm also replacing them all with larger disks. I was un-aware of the send/receive feature. I'll have to look into it. Thanks for your input.

Re: [lustre-discuss] re-creating a zfs OST

On 2016/01/14, 09:27, "Bob Ball" wrote: >Thank you, Andreas. As always, your answers are the best. In this case, I think Marc's answer is better. I didn't realize that you are moving the OST over to new hardware and not retiring it permanently, in which case moving the

Re: [lustre-discuss] re-creating a zfs OST

On 2016/01/12, 12:50, "lustre-discuss on behalf of Bob Ball" wrote: >I have a zfs OST that I need to drain and re-create. This is lustre >2.7.x. In the past, with ldiskfs OST, I did this a number of times >following critical