Re: [CentOS] High load averages with latest kernel and USB drives?

2009-11-20 Thread Todd Denniston
Benjamin Smith wrote, On 11/18/2009 06:11 PM: > On Tuesday 17 November 2009 15:37:24 Todd Denniston wrote: >> Benjamin Smith wrote, On 11/17/2009 01:46 PM: >>> See comments below... >>> >>> On Tuesday 17 November 2009 07:52:01 Todd Denniston wrote: Benjamin Smith wrote, On 11/16/2009 10:56 PM:

Re: [CentOS] High load averages with latest kernel and USB drives?

2009-11-18 Thread Amos Shapira
Sorry can't suggest much about the usb issue but for such frequent backups, as well as to enable poin-in-time-recovery (PITR) you should consider log archiving. It should also save you heaps of load on cpu, disk, network and postgresql server. -Amos On 11/17/09, Benjamin Smith wrote: > I'm havin

Re: [CentOS] High load averages with latest kernel and USB drives?

2009-11-18 Thread Benjamin Smith
On Tuesday 17 November 2009 15:37:24 Todd Denniston wrote: > Benjamin Smith wrote, On 11/17/2009 01:46 PM: > > See comments below... > > > > On Tuesday 17 November 2009 07:52:01 Todd Denniston wrote: > >> Benjamin Smith wrote, On 11/16/2009 10:56 PM: > >>> I have a 1TB USB drive plugged into a USB2

Re: [CentOS] High load averages with latest kernel and USB drives?

2009-11-17 Thread Todd Denniston
Benjamin Smith wrote, On 11/17/2009 01:46 PM: > See comments below... > > On Tuesday 17 November 2009 07:52:01 Todd Denniston wrote: >> Benjamin Smith wrote, On 11/16/2009 10:56 PM: >>> I have a 1TB USB drive plugged into a USB2 port that I use to back up the >>> production drives (which are SCSI

Re: [CentOS] High load averages with latest kernel and USB drives?

2009-11-17 Thread Benjamin Smith
See comments below... On Tuesday 17 November 2009 07:52:01 Todd Denniston wrote: > Benjamin Smith wrote, On 11/16/2009 10:56 PM: > > I have a 1TB USB drive plugged into a USB2 port that I use to back up the > > production drives (which are SCSI). It's working fine, but while doing > > backups (ho

Re: [CentOS] High load averages with latest kernel and USB drives?

2009-11-17 Thread Todd Denniston
Benjamin Smith wrote, On 11/16/2009 10:56 PM: > I have a 1TB USB drive plugged into a USB2 port that I use to back up the > production drives (which are SCSI). It's working fine, but while doing > backups > (hourly) the load average on the server shoots up from the normal 0.5 - 1.5 > or > so u

[CentOS] High load averages with latest kernel and USB drives?

2009-11-16 Thread Benjamin Smith
I'm having a server report a high load average when backing up Postgres database files to an external USB drive. This is driving my loadbalancers all out of kilter and causing a large volume of network monitor alerts. I have a 1TB USB drive plugged into a USB2 port that I use to back up the pr