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

Re: Postgresql data integrity during RAID10 drive rebuild

From: Vivek Khera <vivek(at)khera(dot)org>
To: pgsql general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Postgresql data integrity during RAID10 drive rebuild
Date: 2006-11-29 20:16:41
Message-ID: 712021D9-6D5E-4F38-B21E-D850B125C543@khera.org (view raw or flat)
Thread:
Lists: pgsql-general
On Nov 29, 2006, at 2:39 PM, Scott Marlowe wrote:

>> Sounds good. According to LSI, the drive will take 8 hrs to rebuild a
>> 146GB disc (at a 30% rebuild rate), so doing this in the middle of  
>> the
>> day is not ideal.
>
> The rebuild time also tends to depend on how full the array is.  If
> you're only using 5% or so, it won't take the full 8 hours they're
> projecting.

But how does the RAID card know what is and what is not "full" in the  
unix file system stored on it? It has to rebuild the entire drive.

In response to

Responses

pgsql-general by date

Next:From: Mark JensenDate: 2006-11-29 20:19:48
Subject: Re: How to implement backup protocol
Previous:From: Richard HuxtonDate: 2006-11-29 20:11:23
Subject: Re: coalesce with all nulls can only be assigned to

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