-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rajeev R Veedu
Sent: Wednesday, August 22, 2007 2:52 AM
To: 'CentOS mailing list'
Subject: [CentOS] SATA vs. SAS
I have 8 WD SATA HDD with raid ready (3mbps) hard disks on a
8 port 3ware
Option 1) 2 servers each having 2.0TB raid disk with SAS
drives, 2GB ram and standard other features.
If going down this road, why not look into getting one of
those fancy new storage enclosures where the RAID is built
into the enclosure and can allow 2 servers to simultaneously
access the
Peter Arremann wrote:
On the other hand, data reliability is another issue. We have tons of
sata based disk arrays and have had no issues yet (because our systems
are all on UPS and multiple circuits) but if you don't have
infrastructure like that, you are more likely to lose data on a sata
Bowie Bailey wrote:
snip
Recovery from
the failures seems to be more a matter of the raid implementation than
the interface type.
My 'day job' is with a data recovery firm. I cannot agree more
fervently with Bowie's comment above.
~Ray
___
Feizhou wrote:
Option 1) 2 servers each having 2.0TB raid disk with SAS
drives, 2GB ram and standard other features.
If going down this road, why not look into getting one of
those fancy new storage enclosures where the RAID is built
into the enclosure and can allow 2 servers to
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Feizhou
Sent: Wednesday, August 22, 2007 9:54 AM
To: CentOS mailing list
Subject: Re: [CentOS] SATA vs. SAS
Option 1) 2 servers each having 2.0TB raid disk with SAS
drives, 2GB ram
Bowie Bailey wrote:
Feizhou wrote:
Option 1) 2 servers each having 2.0TB raid disk with SAS
drives, 2GB ram and standard other features.
If going down this road, why not look into getting one of
those fancy new storage enclosures where the RAID is built
into the enclosure and can allow 2
Option 1) 2 servers each having 2.0TB raid disk with SAS
drives, 2GB ram and standard other features.
If going down this road, why not look into getting one of
those fancy new storage enclosures where the RAID is built
into the enclosure and can allow 2 servers to simultaneously
access the
On Wednesday 22 August 2007, Bowie Bailey wrote:
Peter Arremann wrote:
On the other hand, data reliability is another issue. We have tons of
sata based disk arrays and have had no issues yet (because our systems
are all on UPS and multiple circuits) but if you don't have
infrastructure
From: Peter Arremann
On Wednesday 22 August 2007, Bowie Bailey wrote:
Peter Arremann wrote:
On the other hand, data reliability is another issue.
Why do you say that SATA arrays are less reliable?
Not all drive support cache flushes and handle them correctly - even with NCQ.
Same for some
Binary drivers from Dell?
The HBA that connects to the MD3000 is just an mptsas driver which
is part of the stock kernel, but you can download the latest
version from Dell's website as a dkms source package.
Thank you Ross for the information.
___
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