I set up an 8 disk SATA RAID5 array in an HP DL380G5 with the included
P400 SAS/SATA controller. The drives are 500G and I initially tried to
create one big RAID5 array. I started out using the tools in the CMOS
setup but you could only create one "logical" drive on your physical
array that way.
On Tue, Feb 24, 2009 at 2:59 PM, Alverson, Tom (Xetron)
wrote:
> ... mirror ... performance was fine ...
> The RAID5 part was still horribly slow.
Short version: Your RAID controller stinks. Buy a better one.
Explanation: Mirroring requires no computation; the controller just
writes the sam
at once).
-Original Message-
From: Ben Scott [mailto:mailvor...@gmail.com]
Sent: Tuesday, February 24, 2009 3:19 PM
To: NT System Admin Issues
Subject: Re: HP RAID5 P400 SATA questions
On Tue, Feb 24, 2009 at 2:59 PM, Alverson, Tom (Xetron)
wrote:
> ... mirror ... performance was fine ..
On Tue, Feb 24, 2009 at 3:52 PM, Alverson, Tom (Xetron)
wrote:
> The P800 ... is "the highest performing controller
> in the SAS portfolio"
Does it have dedicated silicon for XOR? That's what matters. This
might be called an "XOR engine" or "XOR co-processor" or "RAID-5
accelerator" or someth
>> ... mirror ... performance was fine ...
>> The RAID5 part was still horribly slow.
>
> Short version: Your RAID controller stinks. Buy a better one.
Well, R5 performance is not ever going to be as good as R1 (at least in that
scenario).
Is the P400 really no good? I use some P800's here for
On Tue, Feb 24, 2009 at 4:04 PM, Joseph L. Casale
wrote:
>>> ... mirror ... performance was fine ...
>>> The RAID5 part was still horribly slow.
>>
>> Short version: Your RAID controller stinks. Buy a better one.
>
> Well, R5 performance is not ever going to be as good as R1 (at least in that
>
drives instead of SAS to slow you down on purpose.
Tom
-Original Message-
From: Ben Scott [mailto:mailvor...@gmail.com]
Sent: Tuesday, February 24, 2009 4:04 PM
To: NT System Admin Issues
Subject: Re: HP RAID5 P400 SATA questions
On Tue, Feb 24, 2009 at 3:52 PM, Alverson, Tom (Xetron
On Tue, Feb 24, 2009 at 4:19 PM, Alverson, Tom (Xetron)
wrote:
> It has a monster 600+ PIN BGA (ball grid array) LSI chip on it
> (LSISAS1078). I'm sure there are a few XOR's in there somewhere.
You're looking for dedicated silicon that can do all the XOR
calculations on a block of data very f
@gmail.com]
Sent: Tuesday, February 24, 2009 4:32 PM
To: NT System Admin Issues
Subject: Re: HP RAID5 P400 SATA questions
On Tue, Feb 24, 2009 at 4:19 PM, Alverson, Tom (Xetron)
wrote:
> It has a monster 600+ PIN BGA (ball grid array) LSI chip on it
> (LSISAS1078). I'm sure there are
On Tue, Feb 24, 2009 at 4:46 PM, Alverson, Tom (Xetron)
wrote:
> The LSISAS1078 is a custom chip designed for high performance RAID
> controllers.
> It is used on the HP P400 and P800 (their best raid card) as well as an Intel
> RAID card and LSI logics own "Mega-Raid" brand of RAID card.
My c
On Tue, Feb 24, 2009 at 4:51 PM, Ben Scott wrote:
> On Tue, Feb 24, 2009 at 4:46 PM, Alverson, Tom (Xetron)
> wrote:
>> The LSISAS1078 is a custom chip designed for high performance RAID
>> controllers.
>> It is used on the HP P400 and P800 (their best raid card) as well as an Intel
>> RAID card
why...
-Original Message-
From: Ben Scott [mailto:mailvor...@gmail.com]
Sent: Tuesday, February 24, 2009 4:56 PM
To: NT System Admin Issues
Subject: Re: HP RAID5 P400 SATA questions
On Tue, Feb 24, 2009 at 4:51 PM, Ben Scott wrote:
> On Tue, Feb 24, 2009 at 4:46 PM, Alverson, Tom (Xet
On Tue, Feb 24, 2009 at 5:29 PM, Alverson, Tom (Xetron)
wrote:
> If the chip did not have the guts to perform the RAID calculations fast
> enough,
> I doubt that both Intel and HP would have chosen this chip for their RAID
> controllers.
So, in other words, you have absolutely no basis for th
Sent: Tuesday, February 24, 2009 5:52 PM
To: NT System Admin Issues
Subject: Re: HP RAID5 P400 SATA questions
On Tue, Feb 24, 2009 at 5:29 PM, Alverson, Tom (Xetron)
wrote:
> If the chip did not have the guts to perform the RAID calculations
fast enough,
> I doubt that both Intel and HP would have
not sure I could use them with the HP DL380 internal
> drive slots because of the cabling used.
>
> Tom
>
> -Original Message-
> From: Ben Scott [mailto:mailvor...@gmail.com]
> Sent: Tuesday, February 24, 2009 5:52 PM
> To: NT System Admin Issues
> Subject: Re: HP
+
From: Brian Hintz [mailto:bhi...@gmail.com]
Sent: Tuesday, February 24, 2009 6:59 PM
To: NT System Admin Issues
Subject: Re: HP RAID5 P400 SATA questions
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Busine
ruary 24, 2009 6:00 PM
To: NT System Admin Issues
Subject: RE: HP RAID5 P400 SATA questions
Well I am hoping that someone else on this list may have solved this
problem already. No such luck yet. My guess is that adding
memory/battery or changing to a P800 card will help, and I am testing
that
.edu]
Sent: Tuesday, February 24, 2009 9:51 PM
To: NT System Admin Issues
Subject: RE: HP RAID5 P400 SATA questions
Tom.
I am very interested in the outcome of this as I have 5 servers on order
and 4 of them will have this same controller.
I forwarded the first email from this thread to our rep to
min Issues
Subject: RE: HP RAID5 P400 SATA questions
Also what are the sizes of the files you are reading/write from the
drive.
HP Has tools to measure the performance of the reading and writing from
disk. Although I have heard the P400 controller rant before about the
slowness. Is it any bet
: NT System Admin Issues
Subject: Re: HP RAID5 P400 SATA questions
What stripe and cluster sizes are being used?
On Tue, Feb 24, 2009 at 5:00 PM, Alverson, Tom (Xetron)
wrote:
Well I am hoping that someone else on this list may have solved this
problem already. No such luck yet. My guess is
I would definitely get the battery/memory add-on option if I were you.
Are you going to use SAS or SATA drives? What size?
-Original Message-
From: Glen Johnson [mailto:gjohn...@vhcc.edu]
Sent: Tuesday, February 24, 2009 9:51 PM
To: NT System Admin Issues
Subject: RE: HP RAID5 P400 SATA
that
controller?
-Original Message-
From: Alverson, Tom (Xetron) [mailto:tom.alver...@ngc.com]
Sent: Wednesday, February 25, 2009 9:27 AM
To: NT System Admin Issues
Subject: RE: HP RAID5 P400 SATA questions
I would definitely get the battery/memory add-on option if I were you.
Are you
Any bad news on that
controller?
-Original Message-
From: Alverson, Tom (Xetron) [mailto:tom.alver...@ngc.com]
Sent: Wednesday, February 25, 2009 9:27 AM
To: NT System Admin Issues
Subject: RE: HP RAID5 P400 SATA questions
I would definitely get the battery/memory add-on option if I wer
is now selling the long rumored 300GIG 2.5 inch
> SAS drives. Do you have a part number?
>
> -Original Message-
> From: Glen Johnson [mailto:gjohn...@vhcc.edu]
> Sent: Wednesday, February 25, 2009 11:20 AM
> To: NT System Admin Issues
> Subject: RE: HP RAID5 P400 SATA
: HP RAID5 P400 SATA questions
I think they actually have 450GB 2.5" SAS drives alreadyplus the 1TB
SATAs...
On Wed, Feb 25, 2009 at 11:13 AM, Alverson, Tom (Xetron)
wrote:
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
esday, February 25, 2009 12:14 PM
To: NT System Admin Issues
Subject: RE: HP RAID5 P400 SATA questions
I have never used the E200/128 controller. Based on my experience here,
I would probably want to get any battery or memory options available.
When you first set it up, run the ATTO bench32.exe pr
>
> *From:* Steve Ens [mailto:stevey...@gmail.com]
> *Sent:* Wednesday, February 25, 2009 1:45 PM
> *To:* NT System Admin Issues
> *Subject:* Re: HP RAID5 P400 SATA questions
>
>
>
> I think they actually have 450GB 2.5" SAS drives alreadyplus the 1TB
> SATA
2.5in
> SAS?
>
>
>
> *From:* Steve Ens [mailto:stevey...@gmail.com]
> *Sent:* Wednesday, February 25, 2009 1:45 PM
> *To:* NT System Admin Issues
> *Subject:* Re: HP RAID5 P400 SATA questions
>
>
>
> I think they actually have 450GB 2.5" SAS drives alreadyplus th
The E200/128 controller will not do RAID5 unless you add the 128MB BBWC
upgrade.
-Original Message-
From: Glen Johnson [mailto:gjohn...@vhcc.edu]
Sent: Wednesday, February 25, 2009 11:20 AM
To: NT System Admin Issues
Subject: RE: HP RAID5 P400 SATA questions
Two of the servers will have
Admin Issues
Subject: RE: HP RAID5 P400 SATA questions
The E200/128 controller will not do RAID5 unless you add the 128MB BBWC
upgrade.
-Original Message-
From: Glen Johnson [mailto:gjohn...@vhcc.edu]
Sent: Wednesday, February 25, 2009 11:20 AM
To: NT System Admin Issues
Subject: RE: HP
al Message-
From: Glen Johnson [mailto:gjohn...@vhcc.edu]
Sent: Tuesday, February 24, 2009 9:51 PM
To: NT System Admin Issues
Subject: RE: HP RAID5 P400 SATA questions
Tom.
I am very interested in the outcome of this as I have 5 servers on order
and 4 of them will have this same controller.
I
hn...@vhcc.edu]
> Sent: Tuesday, February 24, 2009 9:51 PM
> To: NT System Admin Issues
> Subject: RE: HP RAID5 P400 SATA questions
>
> Tom.
> I am very interested in the outcome of this as I have 5 servers on order
> and 4 of them will have this same controller.
> I forwarded th
Message-
From: Micheal Espinola Jr [mailto:michealespin...@gmail.com]
Sent: Thursday, February 26, 2009 3:18 PM
To: NT System Admin Issues
Subject: Re: HP RAID5 P400 SATA questions
Im coming in late on this thread, but it sounds like no caching
without the battery.
--
ME2
On Thu, Feb 26, 2009
bject: RE: HP RAID5 P400 SATA questions
There is a place in the GUI to turn on write caching, but I suspect that it is
ignored if the battery is not present.
Also, one more update: Just adding the battery to the 256M card, I got pretty
good speeds, but they were erratic (like something else was
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