The 3ware 9690SA outperforms gmirror and can be had in 4 port with the
did you made tests comparing it with gmirror with the same config?
battery for $600 or so. 8 port with a battery is closer to $1000
Hardware RAID gets you boot support from stripes,
already said what should be done.
What you're asking for is too much -- and this conversation is
starting to delve into freebsd-hardware, not freebsd-questions.
the simple answer is that software RAID on todays computers vastly
outperforms ANY hardware raid solution, maybe except the ones for 1$
or more.
Ok, I have to pickup gVinum where I left it 4 years ago. Hopefully, the
software is stable now.
AFAIK it's not
at least when i tried it in 6.*
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
-BEGIN PGP SIGNED MESSAGE-
Hash: RIPEMD160
Wojciech Puchar wrote:
|
| What you're asking for is too much -- and this conversation is
| starting to delve into freebsd-hardware, not freebsd-questions.
|
| the simple answer is that software RAID on todays computers vastly
| outperforms
On Wed, Oct 01, 2008 at 10:03:02AM +0100, Matthew Seaman wrote:
I've occasionally wondered why there isn't a simple device commonly available
which consists of a few hundred MB of battery backed (or otherwise persistent
in the face of power loss) RAM that can plug into a PCI slot and fulfil
| | the simple answer is that software RAID on todays computers vastly |
outperforms ANY hardware raid solution, maybe except the ones for 1$ | or
more.
You're basically correct, but I think you're overestimating the price of
a good RAID controller.
no. please give me example of any RAID
-BEGIN PGP SIGNED MESSAGE-
Hash: RIPEMD160
Jeremy Chadwick wrote:
| On Wed, Oct 01, 2008 at 10:03:02AM +0100, Matthew Seaman wrote:
| I've occasionally wondered why there isn't a simple device commonly available
| which consists of a few hundred MB of battery backed (or otherwise
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Wojciech Puchar wrote:
| | the simple answer is that software RAID on todays computers vastly
| outperforms ANY hardware raid solution, maybe except the ones for
1$ | or more.
You're basically correct, but I think you're overestimating the
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Danny Do wrote:
Hello,
I am building a 6x500GB SATA HARDWARE RAID5 storage server to
- Store large files, 10BM~1GB/file
- Handling 500+ concurrent connections
- Transfer rate around 100~200Mbit/s
I am thinking of using the patch from
On Tue, Sep 30, 2008 at 7:32 AM, Josh Paetzel [EMAIL PROTECTED] wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Danny Do wrote:
Hello,
I am building a 6x500GB SATA HARDWARE RAID5 storage server to
- Store large files, 10BM~1GB/file
- Handling 500+ concurrent connections
- Transfer
Why do you think slower drives using an interface that has known
problems handling concurrent connections will be faster than faster
drives using an interface designed for concurrency?
My current 6x300GB SCSI system using the FreeBSD default max raw I/O
transfer size (64KB). Assume that all reads
SATA using 1MB IO transfer size, I don't know! I think the SATA system will
SATA drives aren't much slower than SCSI.
simply make this 1MB IO transfer size.
as you still want hardware RAID5 it looks you simply read maybe every
second word from my mails we exchanged privately.
: Wojciech Puchar [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 30 September 2008 9:16 PM
To: Danny Do
Cc: 'Josh Paetzel'; freebsd-questions@freebsd.org
Subject: RE: Optimal File System config for 2.5TB RAID5
SATA using 1MB IO transfer size, I don't know! I think the SATA system
will
SATA drives aren't much
The reason I want to use hardware RAID is because I got so much problem with
software RAID5 4 years ago on FreeBSD 5.4. I still remember those
nightmares. Furthermore, hardware RAID5 doesn't require much knowledge and
management.
But you could be right, the CPU speed is triple now, software
: Optimal File System config for 2.5TB RAID5
The reason I want to use hardware RAID is because I got so much problem
with
software RAID5 4 years ago on FreeBSD 5.4. I still remember those
nightmares. Furthermore, hardware RAID5 doesn't require much knowledge and
management.
But you could
On Wed, Oct 01, 2008 at 04:49:27AM +0700, Danny Do wrote:
I got Perc 4E-DI Embedded Raid Adapter (256MB) from DELL for my current SCSI
system. They said it's the enterprise class. I don't know much about the
performance between software RAID and hardware RAID.
I'm not familiar with PERC (LSI)
On Tuesday, September 30, 2008, at 02:44PM, Jeremy Chadwick [EMAIL
PROTECTED] wrote:
The only hardware RAID controller I've seen praise for, under FreeBSD,
are Areca controllers.
3ware has provided very good FreeBSD support as well.
___
Chadwick
Sent: Wednesday, 1 October 2008 5:45 AM
To: Danny Do
Cc: 'Wojciech Puchar'; freebsd-questions@freebsd.org
Subject: Re: Optimal File System config for 2.5TB RAID5
On Wed, Oct 01, 2008 at 04:49:27AM +0700, Danny Do wrote:
I got Perc 4E-DI Embedded Raid Adapter (256MB) from DELL for my current
18 matches
Mail list logo
