[DRBD-user] Regarding Best way for snapshotting with ZFS/LVM as backing disk for drbd

Chitvan Chhabra chitvan1988 at gmail.com
Wed Aug 17 06:51:04 CEST 2022


Many Thanks for your valuable insights.

On Wed, 17 Aug 2022 at 00:48, David Bruzos <david.bruzos at jaxport.com> wrote:

> Hello,
> Yeah, I agree with what others in this forum have said. My own experiences
> have been about the same. As long as you have a well-synchronized clock on
> your storage nodes and your cron/fcron/whatever scheduler is working
> correctly, you will do very well with internal metadata and
> zfs-auto-snapshot with little fuss.
>
> One thing though, I have only used the A protocol when I need max
> performance and don't care about the data all that much. For 99% of my use
> cases, I've used the C protocol. The A protocol can result in significant
> data loss in many cases when your system crashes while the storage is in
> heavy use. Maybe you could consider using C instead of A if your
> performance is enough and leave A for specific cases where you know it is
> ok.
> Also, in many cases where C has too much latency and A is too risky, you
> can use the B protocol which is the middleground between the two.
>
> --
>
> Thank you,
>
> David
>
> [image: Jacksonville Port Authority (JAXPORT)]
> <https://www.jaxport.com/?utm_source=emailsig&utm_medium=email&utm_campaign=emailbranding>
> David Bruzos
> Systems Administrator
> Jacksonville Port Authority (JAXPORT)
> t. +1 (904) 357-3069  |  m. +1 (904) 625-0969
> David.Bruzos at jaxport.com  |  JAXPORT.com
> <https://www.jaxport.com/?utm_source=emailsig&utm_medium=email&utm_campaign=emailbranding>
> 2831 Talleyrand Ave, Jacksonville, Florida 32206
> [image: Follow JAXPORT on LinkedIn]
> <http://www.linkedin.com/company/334262>    [image: Follow JAXPORT on
> Twitter] <https://twitter.com/jaxport>    [image: Like JAXPORT on
> Facebook] <https://www.facebook.com/JacksonvillePortAuthority>    [image:
> Follow JAXPORT on Instagram] <http://instagram.com/jax_port>    [image:
> Subscribe to JAXPORT on YouTube] <https://www.youtube.com/user/JAXPORT>
>
>   SUBSCRIBE TO OUR E-NEWSLETTER >> JAXPORT REPORT
> <http://eepurl.com/gjqoY5>
>
>
> ________________________________________________________________________________________________
>
> Please note that under Florida's public records law (F.S. 668.6076), most
> written communications
> to or from the Jacksonville Port Authority are public records, available
> to the public and media
> upon request. Your email communications may therefore be subject to public
> disclosure. If you have
> received this email in error, please notify the sender by return email and
> delete immediately
> without forwarding to others.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20220817/ca7cc17d/attachment.htm>


More information about the drbd-user mailing list