On Fri, Apr 9, 2010 at 1:02 PM, Jesper Krogh wrote:
> It would be nice if there was an easy way to test and confirm that it
> actually was robust to power-outtake..
Sadly, the only real test is pulling the power plug. And it can't
prove the setup is good, only that it's bad or most likely good.
On 2010-04-09 20:22, Greg Smith wrote:
Jesper Krogh wrote:
I've spent quite some hours googling today. Am I totally wrong if the:
HP MSA-20/30/70 and Sun Oracle J4200's:
https://shop.sun.com/store/product/53a01251-2fce-11dc-9482-080020a9ed93
are of the same type just from "major" vendors.
Yes,
Jesper Krogh wrote:
I've spent quite some hours googling today. Am I totally wrong if the:
HP MSA-20/30/70 and Sun Oracle J4200's:
https://shop.sun.com/store/product/53a01251-2fce-11dc-9482-080020a9ed93
are of the same type just from "major" vendors.
Yes, those are the same type of implementati
On 2010-04-09 17:27, Greg Smith wrote:
Jesper Krogh wrote:
Can someone shed "simple" light on an extremely simple question.
How do you physicallly get 48 drives attached to an LSI that claims to
only have 2 internal and 2 external ports?
(the controller claims to support up to 240 drives).
The
Jesper Krogh wrote:
Can someone shed "simple" light on an extremely simple question.
How do you physicallly get 48 drives attached to an LSI that claims to
only have 2 internal and 2 external ports?
(the controller claims to support up to 240 drives).
There are these magic boxes that add "SAS e
On 2010-04-08 05:44, Dave Crooke wrote:
For a card level RAID controller, I am a big fan of the LSI , which is
available in a PCIe riser form factor for blade / 1U servers, and comes with
0.5GB of battery backed cache. Full Linux support including mainline kernel
drivers and command line conf
On Apr 7, 2010, at 11:13 PM, Greg Smith wrote:
> Scott Carey wrote:
>> * Change the linux 'readahead' block device parameter to at least 4MB (8192,
>> see blockdev --setra) -- I don't know if there is a FreeBSD equivalent.
>>
> I haven't tested them, but 3ware gives suggestions at
> http://www
Scott Carey wrote:
* Change the linux 'readahead' block device parameter to at least 4MB (8192,
see blockdev --setra) -- I don't know if there is a FreeBSD equivalent.
I haven't tested them, but 3ware gives suggestions at
http://www.3ware.com/kb/Article.aspx?id=14852 for tuning their cards
For a card level RAID controller, I am a big fan of the LSI , which is
available in a PCIe riser form factor for blade / 1U servers, and comes with
0.5GB of battery backed cache. Full Linux support including mainline kernel
drivers and command line config tools. Was using these with SAS expande
On Apr 6, 2010, at 9:49 AM, Ireneusz Pluta wrote:
> Greg Smith pisze:
>>
>> The MegaRAID SAS 84* cards have worked extremely well for me in terms
>> of performance and features for all the systems I've seen them
>> installed in. I'd consider it a modest upgrade from that 3ware card,
>> speed
Greg Smith pisze:
The MegaRAID SAS 84* cards have worked extremely well for me in terms
of performance and features for all the systems I've seen them
installed in. I'd consider it a modest upgrade from that 3ware card,
speed wise.
OK, sounds promising.
The main issue with the MegaRAID ca
Ireneusz Pluta writes:
I am waiting for an ordered machine dedicated to PostgresSQL. It was
expected to have 3ware 9650SE 16 port controller. However, the vendor
wants to replace this controller with MegaRAID SAS 84016E, because, as
I have had better luck getting 3ware management tools to wo
On 30/03/2010 19:18, Greg Smith wrote:
The MegaRAID SAS 84* cards have worked extremely well for me in terms of
performance and features for all the systems I've seen them installed
in. I'd consider it a modest upgrade from that 3ware card, speed wise.
The main issue with the MegaRAID cards is th
Ireneusz Pluta wrote:
I am waiting for an ordered machine dedicated to PostgresSQL. It was
expected to have 3ware 9650SE 16 port controller. However, the vendor
wants to replace this controller with MegaRAID SAS 84016E, because, as
they say, they have it on stock, while 3ware would be available
Hi,
I am waiting for an ordered machine dedicated to PostgresSQL. It was
expected to have 3ware 9650SE 16 port controller. However, the vendor
wants to replace this controller with MegaRAID SAS 84016E, because, as
they say, they have it on stock, while 3ware would be available in a few
weeks.
I
Hello,
I am waiting for an ordered machine dedicated to PostgresSQL. It was
expected to have 3ware 9650SE 16 port controller. However, the vendor
wants to replace this controller with MegaRAID SAS 84016E, because, as
they say, they have it on stock, while 3ware would be available in a few
wee
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