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| 3PAR_8200 - Snapshot With RedHatKVM https://3parug.com/viewtopic.php?f=18&t=2977 |
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| Author: | Cykani [ Mon Sep 10, 2018 4:02 am ] |
| Post subject: | 3PAR_8200 - Snapshot With RedHatKVM |
Hello Guys, In our environment, we have a 3PAR 8200 (3.2.2) and 3 hypervisor on RedHat in a cluster. Only one virtual volume is exported to them (Messaging_vv). We had some issues on filesystems which obliged us to create a snapshot of this volume: Messaging_vv.180909183000 Fortunately, everything is fixed now and I want to know what I have to do with this snapshot : - Remove it by CLI using removevv? - Promote it using promotesv? Where are located the new files written on this volume? Thank you for your help |
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| Author: | markinnz [ Mon Sep 10, 2018 5:02 am ] |
| Post subject: | Re: 3PAR_8200 - Snapshot With RedHatKVM |
If you never exported the snapshot volume to a host and have fixed everything on the source volume then just removevv the snapshot, all the changes you would have done would have been done to the source "Messaging_vv" Don't promote it .. if you do that your source volume will go back in time to the point the snapshot was created and you'll be fixing things all over again 
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| Author: | Cykani [ Mon Sep 10, 2018 7:50 am ] |
| Post subject: | Re: 3PAR_8200 - Snapshot With RedHatKVM |
The snapshot volume is not exported. I used the R/W option to create it. I thought that "promote" action means that all the changes are on the snapshot, so I can apply them to the base volume. So all the new files and everything are directly written to the base volume? So this command will not cause lost of data and it can be done without any interruption? Code: removevv Messaging_vv.180909183000
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