pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
Isolation of tx logs on VMware
2+ messages / 2 participants
[nested] [flat]

* Isolation of tx logs on VMware
@ 2016-12-13 20:16  ProPAAS DBA <dba@propaas.com>
  0 siblings, 1 reply; 2+ messages in thread

From: ProPAAS DBA @ 2016-12-13 20:16 UTC (permalink / raw)
  To: pgsql-performance

Hi All;


We have a client running on VMware, they have heavy write traffic and we 
want to isolate the IO for the tx logs (pg_xlog). However it seems the 
best plan based on feedback from the client is either

(a) simply leave the pg_xlog dir in the VMDK

or

(b) relocate pg_xlog to NAS/NFS


I'm not a VMware expert, however I thought VMware would allow the 
creation of multiple disk volumes and attach them via separate mount 
points. Is this not true? If it is an option can someone point me to a 
how to...


Also, if we cannot do multiple VMDK volumes then what is everyone's 
thoughts about relocating pg_xlog to an NFS mount?


Thanks in advance





-- 
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance



^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re: Isolation of tx logs on VMware
@ 2016-12-13 20:22  Joshua D. Drake <jd@commandprompt.com>
  parent: ProPAAS DBA <dba@propaas.com>
  0 siblings, 0 replies; 2+ messages in thread

From: Joshua D. Drake @ 2016-12-13 20:22 UTC (permalink / raw)
  To: ProPAAS DBA <dba@propaas.com>; pgsql-performance

On 12/13/2016 12:16 PM, ProPAAS DBA wrote:
> Hi All;

>
> I'm not a VMware expert, however I thought VMware would allow the
> creation of multiple disk volumes and attach them via separate mount
> points. Is this not true? If it is an option can someone point me to a
> how to...

Yes it is possible to do this and then you will be able to use standard 
OS tools to determine the IO utilization.

>
>
> Also, if we cannot do multiple VMDK volumes then what is everyone's
> thoughts about relocating pg_xlog to an NFS mount?
>

I personally wouldn't do it but it would depend on the implementation.

JD

>
> Thanks in advance
>
>
>
>
>


-- 
Command Prompt, Inc.                  http://the.postgres.company/
                         +1-503-667-4564
PostgreSQL Centered full stack support, consulting and development.
Everyone appreciates your honesty, until you are honest with them.


-- 
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance



^ permalink  raw  reply  [nested|flat] 2+ messages in thread


end of thread, other threads:[~2016-12-13 20:22 UTC | newest]

Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2016-12-13 20:16 Isolation of tx logs on VMware ProPAAS DBA <dba@propaas.com>
2016-12-13 20:22 ` Joshua D. Drake <jd@commandprompt.com>

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox