On 31 August 2007 , Feizhou <[EMAIL PROTECTED]> wrote:
> Message: 11
> > Besides I do not believe the PERC 5IR has BBU cache, that
> > controller is really only meant as a simple RAID1 controller for
> > the OS.
I'll try to find out.
> Dell certainly has a BBU cache option, not sure if OP's Powe
On 31 August 2007, Feizhou <[EMAIL PROTECTED]> wrote:
> Message: 77
> Whoa there!
>
> Hardware raid + battery backed up memory cache in raid 1,10 mode is
> hard to beat with software raid and hardware raid offers data
> integrity guarantee beyond software raid.
>
> If you were planning a huge ar
About 10 seconds after I started this thread, I remembered a long discussion
about
RAID, SATA, etc., 2 or 3 months ago. I think that Feizhou (?) strongly
recommended
going with Software RAID in CentOS. I will search for that and do a lot of
reading. RAID 1 for mirroring is what I want. Lanny
On 30 August 2007, "Alain Spineux" <[EMAIL PROTECTED]> wrote:
> Message: 50
> RAID 1 is mirroring (data are stored on both diks), RAID 0 is striping (data
> are split between both disk).
> If one disk fail, You will loose your data in RAID 0, not in RAID 1.
>
> You can change this setting yoursel
On 29 August 2007, "Ross S. W. Walker" <[EMAIL PROTECTED]> wrote:
> Message: 39
> I wouldn't worry too much about the OS HD configuration, you are
> always going to want RAID1 for the OS, whether software or hardware.
>
> Reason I say not to worry too much about the OS HD config is because
> you
RAID 1 is mirroring (data are stored on both diks), RAID 0 is striping (data
are split between both disk).
If one disk fail, You will loose your data in RAID 0, not in RAID 1.
You can change this setting yourself later using the BIOS menu or the DELL
CD.
I recommend RAID 1 for safety
Regards
PS
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Lanny Marcus
>
> Looking at the Dell PowerEdge 440SC web page for Colombia.
> The box will
> have two 250 GB SATA drives. The HD controller is: SAS 5IR
> SAS,Internal
> Raid Adapter (SAS5IR)
>
>
> for HD Configuration) the
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