Skip site navigation (1) Skip section navigation (2)

Re: DOC: Wal update

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>
Cc: PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: DOC: Wal update
Date: 2008-01-10 03:01:21
Message-ID: 200801100301.m0A31LJ23963@momjian.us (view raw or flat)
Thread:
Lists: pgsql-patches
Zdenek Kotala wrote:
> Bruce Momjian wrote:
> > Zdenek Kotala wrote:
> >> I add few sentences how to write cache works on Solaris platform.
> > 
> > I have updated our documentation with the attached patch.  I was able to
> > verify all the information in this change.  
> 
> Thanks.
> 
> > I changed your original wording because the statement that UFS turns off
> > write cache seemed unclear because the file system seems independent of
> > the disk write cache.  (What happens if you have UFS and ZFS on the same
> > drive?)
> 
> You are right UFS does not modify (write) cache setting and it is usually 
> disabled by default on most disks. If ZFS and UFS are  on same disk, than ZFS 
> don't enable disk cache. It is a reason why put ZFS on separate disk is better. See
> http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide#Storage_Pools
> 
> > Anyway I think the attached wording is fine.
> 
> Yes, it is.
> 
> 		Zdenek
> 
> PS: There are some articles about ZFS.
> 
> http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide
> http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide
> http://www.solarisinternals.com/wiki/index.php/ZFS_for_Databases
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 3: Have you checked our extensive FAQ?
> 
>                http://www.postgresql.org/docs/faq

-- 
  Bruce Momjian  <bruce(at)momjian(dot)us>        http://momjian.us
  EnterpriseDB                             http://postgres.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

In response to

pgsql-patches by date

Next:From: Alvaro HerreraDate: 2008-01-10 03:20:46
Subject: Re: BUG #3860: xpath crashes backend when is queryingxmlagg result
Previous:From: Tom LaneDate: 2008-01-10 01:36:52
Subject: Re: BUG #3860: xpath crashes backend when is querying xmlagg result

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group