You can get yourself a decent SAS RAID controller on ebay for $100 or so
that will handle 8 devices. SAS Controllers will work with SATA drives and
allow you to do off-CPU RAID5 or RAID6. I have not used one of these for
backuppc but I do have an MS-SQL server running 4 SAS disks in RAID5 on an
I
David Rees wrote:
> On Wed, Feb 27, 2008 at 4:38 PM, Stephen Joyce <[EMAIL PROTECTED]> wrote:
>
>> (Mostly) agreed. If you can afford a hardware raid controller, raid 5 is a
>> good choice.
>>
>
> To clarify, a hardware raid controller with battery backed RAM is a
> good choice fo RAID 5,
David Rees wrote:
> On Wed, Feb 27, 2008 at 4:38 PM, Stephen Joyce <[EMAIL PROTECTED]> wrote:
>> (Mostly) agreed. If you can afford a hardware raid controller, raid 5 is a
>> good choice.
>
> To clarify, a hardware raid controller with battery backed RAM is a
> good choice fo RAID 5, otherwise i
On Wed, Feb 27, 2008 at 4:38 PM, Stephen Joyce <[EMAIL PROTECTED]> wrote:
> (Mostly) agreed. If you can afford a hardware raid controller, raid 5 is a
> good choice.
To clarify, a hardware raid controller with battery backed RAM is a
good choice fo RAID 5, otherwise it will either be very slow f
RAM RAM RAM! 512MB of ram is definitely your issue here. swapping causes
more periods of head movement which means less periods of head reads/writes
on your disk. With your specs, moving to 1GB+ of ram will be huge.
that Celeron processor is probably your next big issue specifically because
it
On Wed, 27 Feb 2008, John Pettitt wrote:
> So my take - if your box is swapping that's the #1 upgrade because that
> will kill any server performance and memory is cheap. Next I'd look at
> disk, with the right controller more spindles will give you a
> performance boost however raid 5 is not a
Nils Breunese (Lemonbit) wrote:
> Hello all,
>
> We're running a BackupPC 3.1.0 installation on CentOS 4 32-bit on a
> machine with the following specs:
>
> - Intel Celeron CPU 2.66 GHz
> - 512 MB RAM
> - BackupPC pool on a single 250 GB ATA 133 drive
>
> We currently running one backup at a time
Ski Kacoroski wrote:
> iowait means disk wait problems. Either move to a 3ware raid card or
> to a scsi drive to improve matters.
It generally means you are waiting for head motion. The controller isn't
going to matter and faster drives only make a little bit of difference.
--
Les Mikesel
Nils Breunese (Lemonbit) wrote:
> Hello all,
>
> We're running a BackupPC 3.1.0 installation on CentOS 4 32-bit on a
> machine with the following specs:
>
> - Intel Celeron CPU 2.66 GHz
> - 512 MB RAM
> - BackupPC pool on a single 250 GB ATA 133 drive
>
> We currently running one backup at a t
On 02/27 07:47 , Nils Breunese (Lemonbit) wrote:
> We currently running one backup at a time ($Conf{MaxBackups} = 1;).
> This already maxes out the iowait%. The machine is also swapping
> sometimes. If we'd want to do more backups simultaneously, how would
> you prioritize the following possi
iowait means disk wait problems. Either move to a 3ware raid card or
to a scsi drive to improve matters.
cheers,
ski
On Wed, 27 Feb 2008 19:47:45 +0100 "Nils Breunese (Lemonbit)"
<[EMAIL PROTECTED]> wrote:
> Hello all,
>
> We're running a BackupPC 3.1.0 installation on CentOS 4 32-bit on a
Hello all,
We're running a BackupPC 3.1.0 installation on CentOS 4 32-bit on a
machine with the following specs:
- Intel Celeron CPU 2.66 GHz
- 512 MB RAM
- BackupPC pool on a single 250 GB ATA 133 drive
We currently running one backup at a time ($Conf{MaxBackups} = 1;).
This already maxes o
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