| From: | "Klaus P(dot) Pieper" <kpi6288(at)gmail(dot)com> |
|---|---|
| To: | <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: VM-Ware Backup of VM safe? |
| Date: | 2017-09-20 18:24:05 |
| Message-ID: | 00d601d3323d$a518dbe0$ef4a93a0$@gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
> Von: pgsql-general-owner(at)postgresql(dot)org [mailto:pgsql-general-
> owner(at)postgresql(dot)org] Im Auftrag von George Neuner
>
> But VSS is needed only to copy VM files *while* they are in use. If you snapshot
> the VM, the snapshot files then are read-only and can be freely copied. As long
> as the backup avoids the currently active files, there is no danger.
But if you take a snapshot without VSS writer functions, I tend to believe that there is a serious potential that relevant information is still only in RAM and not written to disk. This would get lost in the snapshot.
I may be wrong, but my understanding of a VSS writer is that all transaction and log files are flushed to disk prior tot he snapshot.
Klaus
---
Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft.
https://www.avast.com/antivirus
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Klaus P. Pieper | 2017-09-20 18:41:57 | Re: [SPAM] Re: VM-Ware Backup of VM safe? |
| Previous Message | Justin Pryzby | 2017-09-20 18:22:39 | Re: Any known issues Pg 9.3 on Ubuntu Xenial kernel 4.4.0? |