From: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
---|---|
To: | "Arnold, Sandra" <ArnoldS(at)osti(dot)gov> |
Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>, "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
Subject: | Re: The OS Command for pg_hotbackup -- Use lvmsnapshot instead of tar cvzf |
Date: | 2010-03-02 19:20:10 |
Message-ID: | dcc563d11003021120u2cc0ec95ud8802126521e442c@mail.gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-admin pgsql-general |
On Tue, Mar 2, 2010 at 8:43 AM, Arnold, Sandra <ArnoldS(at)osti(dot)gov> wrote:
> I am currently using the pg_hotbackup Perl script to backup my production
> PostgreSQL database. However, the next production database is going to be
> close to a terrabyte in size. We feel that a tar cvzf command is not the
> correct OS backup solution to use. Instead we would like to use
> lvmsnapshot. Is anyone using the pg_hotbackup script but instead of the tar
> cvzf OS command are they using lvmsnapshot?
>
> Or, is anyone using lvmsnapshot and doing point-in-time recoveries?
I do not run my databases on LVM because, at least in the past, LVM
did not properly honor fsync / write barrier commands. I don't know
if this has since been fixed. If your transaction rate on LVM is
unnaturally higher than it should / could be, then suspect it is not
fsyncing, and putting your data on it is putting it at risk.
From | Date | Subject | |
---|---|---|---|
Next Message | Heikki Linnakangas | 2010-03-02 19:22:09 | Re: Very Dangerous bug in XA connection pooling and SL EJBs with jboss-4.2.3 & latest postgresql-8.4-701.jdbc3.jar |
Previous Message | Chander Ganesan | 2010-03-02 18:09:33 | Re: The OS Command for pg_hotbackup -- Use lvmsnapshot instead of tar cvzf |
From | Date | Subject | |
---|---|---|---|
Next Message | Scott Marlowe | 2010-03-02 19:24:06 | Re: The OS Command for pg_hotbackup -- Use lvmsnapshot instead of tar cvzf |
Previous Message | Ben Chobot | 2010-03-02 18:47:05 | Re: disable triggers isolated to transaction only? |