Bear in mind you will lose data if the raid controller itself fails (or the
cache memory module). Many solutions have mirrored cache for this reason. But
that's more $$, depending on the risks you want to take.
Quoting Arjen van der Meijden <[EMAIL PROTECTED]>:
> On 14-9-2005 22:03, Alvaro Herr
On 14-9-2005 22:03, Alvaro Herrera wrote:
On Wed, Sep 14, 2005 at 11:28:43AM -0700, Jeffrey W. Baker wrote:
On Wed, 2005-09-14 at 11:25 -0700, Peter Darley wrote:
Actually the cache will just hold its contents while the power is out.
When the power is restored, the RAID controller will complet
John A Meinel wrote:
>The recent *cheap* version of a ramdisk had battery backup for 16 hours.
>(Very expensive ramdisks actually have enough battery power to power a
>small hard-drive to dump the contents into).
>I'm guessing for a RAID controller, the time would be in the max 1 day
>range.
i t
Alvaro Herrera wrote:
> On Wed, Sep 14, 2005 at 11:28:43AM -0700, Jeffrey W. Baker wrote:
>
>>On Wed, 2005-09-14 at 11:25 -0700, Peter Darley wrote:
>>
>>> I'm getting a new server for our database, and I have a quick question
>>>about RAID controllers with a battery backed cache. I understand
> On Wed, Sep 14, 2005 at 11:28:43AM -0700, Jeffrey W. Baker wrote:
> > On Wed, 2005-09-14 at 11:25 -0700, Peter Darley wrote:
> > > I'm getting a new server for our database, and I have a quick
> question
> > > about RAID controllers with a battery backed cache. I understand
that
> the
> > > ca
On Wed, Sep 14, 2005 at 11:28:43AM -0700, Jeffrey W. Baker wrote:
> On Wed, 2005-09-14 at 11:25 -0700, Peter Darley wrote:
> > I'm getting a new server for our database, and I have a quick question
> > about RAID controllers with a battery backed cache. I understand that the
> > cache will all
On Wed, 2005-09-14 at 11:25 -0700, Peter Darley wrote:
> I'm getting a new server for our database, and I have a quick question
> about RAID controllers with a battery backed cache. I understand that the
> cache will allow the cache to be written out if the power fails to the box,
> which al
Folks,
I'm getting a new server for our database, and I have a quick question
about RAID controllers with a battery backed cache. I understand that the
cache will allow the cache to be written out if the power fails to the box,
which allows it to report a write as committed safely when it'
