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WAN based replication...

 

 

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brian.gupta at brandorr

Nov 24, 2009, 8:46 PM

Post #1 of 5 (1616 views)
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WAN based replication...

Hi,

From the docs and mailing list threads I have read, it seems that DRDB
is recommended as a LAN only synchronous replication tool, with a
further recommendation for a dedicated LAN segment.

I am looking for a tool to be able to intercept standard Linux file
system writes synchronously, but queue them for asynchronous remote
writing, in some sort of replication log. (Thus allowing for
tolerances found on a typical public WAN connection.)

We're wondering if either DRDB has been adapted to do this, or if you
guys know of any other tools that would support this.

Thanks,
Brian
_______________________________________________
drbd-user mailing list
drbd-user [at] lists
http://lists.linbit.com/mailman/listinfo/drbd-user


johannes.thoma at linbit

Nov 25, 2009, 9:17 AM

Post #2 of 5 (1488 views)
Permalink
Re: WAN based replication... [In reply to]

On Wednesday 25 November 2009 05:46:11 am Brian Gupta wrote:
> Hi,
>
> From the docs and mailing list threads I have read, it seems that DRDB
> is recommended as a LAN only synchronous replication tool, with a
> further recommendation for a dedicated LAN segment.
>
> I am looking for a tool to be able to intercept standard Linux file
> system writes synchronously, but queue them for asynchronous remote
> writing, in some sort of replication log. (Thus allowing for
> tolerances found on a typical public WAN connection.)
>
> We're wondering if either DRDB has been adapted to do this, or if you
> guys know of any other tools that would support this.
>
> Thanks,
> Brian
> _______________________________________________
> drbd-user mailing list
> drbd-user [at] lists
> http://lists.linbit.com/mailman/listinfo/drbd-user

Maybe you want to have a look at drbd-proxy (see
http://www.linbit.com/en/products-services/drbd-proxy)

Please contact sales [at] linbit for an evaluation license.

Best regards,

- Johannes

--
: DI. Johannes Thoma
: LINBIT | Your Way to High Availability
: Tel. +43-1-8178292-0, Fax +43-1-8178292-82


johannes.thoma at linbit

Nov 25, 2009, 9:21 AM

Post #3 of 5 (1475 views)
Permalink
Re: WAN based replication... [In reply to]

On Wednesday 25 November 2009 05:46:11 am Brian Gupta wrote:
> Hi,
>
> From the docs and mailing list threads I have read, it seems that DRDB
> is recommended as a LAN only synchronous replication tool, with a
> further recommendation for a dedicated LAN segment.
>
> I am looking for a tool to be able to intercept standard Linux file
> system writes synchronously, but queue them for asynchronous remote
> writing, in some sort of replication log. (Thus allowing for
> tolerances found on a typical public WAN connection.)
>
> We're wondering if either DRDB has been adapted to do this, or if you
> guys know of any other tools that would support this.
>
> Thanks,
> Brian
> _______________________________________________
> drbd-user mailing list
> drbd-user [at] lists
> http://lists.linbit.com/mailman/listinfo/drbd-user

Maybe you want to have a look at drbd-proxy (see
http://www.linbit.com/en/products-services/drbd-proxy)

Please contact sales [at] linbit for an evaluation license.

Best regards,

- Johannes

--
: DI. Johannes Thoma
: LINBIT | Your Way to High Availability
: Tel. +43-1-8178292-0, Fax +43-1-8178292-82


brian.gupta at brandorr

Nov 30, 2009, 3:05 PM

Post #4 of 5 (1407 views)
Permalink
Re: WAN based replication... [In reply to]

Does dbdb-rpxy require that you configure drdb to use its native async
replication facility?

I ask because it seems that native async-replication prevents remote
machines from mounting the volume or accessing the data while
replication is ongoing. It seems that one needs to break the
connection, and promote the slave before it's ok to mount the file
system.

-Brian

On Wed, Nov 25, 2009 at 12:21 PM, Johannes Thoma
<johannes.thoma [at] linbit> wrote:
> On Wednesday 25 November 2009 05:46:11 am Brian Gupta wrote:
>> Hi,
>>
>> From the docs and mailing list threads I have read, it seems that DRDB
>> is recommended as a LAN only synchronous replication tool, with a
>> further recommendation for a dedicated LAN segment.
>>
>> I am looking for a tool to be able to intercept standard Linux file
>> system writes synchronously, but queue them for asynchronous remote
>> writing, in some sort of replication log. (Thus allowing for
>> tolerances found on a typical public WAN connection.)
>>
>> We're wondering if either DRDB has been adapted to do this, or if you
>> guys know of any other tools that would support this.
>>
>> Thanks,
>> Brian
>> _______________________________________________
>> drbd-user mailing list
>> drbd-user [at] lists
>> http://lists.linbit.com/mailman/listinfo/drbd-user
>
> Maybe you want to have a look at drbd-proxy (see
> http://www.linbit.com/en/products-services/drbd-proxy)
>
> Please contact sales [at] linbit for an evaluation license.
>
> Best regards,
>
> - Johannes
>
> --
> : DI. Johannes Thoma
> : LINBIT | Your Way to High Availability
> : Tel. +43-1-8178292-0, Fax +43-1-8178292-82
>
>
> _______________________________________________
> drbd-user mailing list
> drbd-user [at] lists
> http://lists.linbit.com/mailman/listinfo/drbd-user
>
>
_______________________________________________
drbd-user mailing list
drbd-user [at] lists
http://lists.linbit.com/mailman/listinfo/drbd-user


brian.gupta at brandorr

Nov 30, 2009, 7:24 PM

Post #5 of 5 (1408 views)
Permalink
Re: WAN based replication... [In reply to]

Sorry, dbdb-rpxy was supposed to be drdb-proxy.

On Mon, Nov 30, 2009 at 6:05 PM, Brian Gupta <brian.gupta [at] brandorr> wrote:
> Does dbdb-rpxy require that you configure drdb to use its native async
> replication facility?
>
> I ask because it seems that native async-replication prevents remote
> machines from mounting the volume or accessing the data while
> replication is ongoing. It seems that one needs to break the
> connection, and promote the slave before it's ok to mount the file
> system.
>
> -Brian
>
> On Wed, Nov 25, 2009 at 12:21 PM, Johannes Thoma
> <johannes.thoma [at] linbit> wrote:
>> On Wednesday 25 November 2009 05:46:11 am Brian Gupta wrote:
>>> Hi,
>>>
>>> From the docs and mailing list threads I have read, it seems that DRDB
>>> is recommended as a LAN only synchronous replication tool, with a
>>> further recommendation for a dedicated LAN segment.
>>>
>>> I am looking for a tool to be able to intercept standard Linux file
>>> system writes synchronously, but queue them for asynchronous remote
>>> writing, in some sort of replication log. (Thus allowing for
>>> tolerances found on a typical public WAN connection.)
>>>
>>> We're wondering if either DRDB has been adapted to do this, or if you
>>> guys know of any other tools that would support this.
>>>
>>> Thanks,
>>> Brian
>>> _______________________________________________
>>> drbd-user mailing list
>>> drbd-user [at] lists
>>> http://lists.linbit.com/mailman/listinfo/drbd-user
>>
>> Maybe you want to have a look at drbd-proxy (see
>> http://www.linbit.com/en/products-services/drbd-proxy)
>>
>> Please contact sales [at] linbit for an evaluation license.
>>
>> Best regards,
>>
>> - Johannes
>>
>> --
>> : DI. Johannes Thoma
>> : LINBIT | Your Way to High Availability
>> : Tel. +43-1-8178292-0, Fax +43-1-8178292-82
>>
>>
>> _______________________________________________
>> drbd-user mailing list
>> drbd-user [at] lists
>> http://lists.linbit.com/mailman/listinfo/drbd-user
>>
>>
>
_______________________________________________
drbd-user mailing list
drbd-user [at] lists
http://lists.linbit.com/mailman/listinfo/drbd-user

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