Re: [suse-sles-e] Re: catastrophic disk-performance on SLES10 with SATA drives

From: Oliver Antwerpen (antwerpen_at_netsquare.de)
Date: Mon Apr 02 2007 - 12:23:50 CEST


Date: Mon, 02 Apr 2007 12:23:50 +0200
From: Oliver Antwerpen <antwerpen@netsquare.de>
Message-Id: <20070402102407.6B17712205@mx1.suse.de>
Subject: Re: [suse-sles-e] Re: catastrophic disk-performance on SLES10	with SATA drives

Hi Markus,

Generally speaking, this will improve the performance very much. The
integrated SAs don't have Write-Back-Cache, so the data has to be
'written-thru'. The 128MB cache module extends the controller's memory
to 192MB read/write cache. The Euros will be a good investment.

Oliver

-- 
Si vis pacem, para bellum!
The path of the righteous man is beset on all sides by
the inequities of the selfish and the tyranny of evil men.
Markus Roeffen schrieb:
> Hi Andreas,
> hi all,
>
> thanks for posting your experience in the mailinglist.
>
> It seems that you are right. There are some people who have
> difficulties with the SmartArray-Controller on HP ProLiant DL360 G4p.
> Our controller is a SmartArray-Controller 6i with latest firmware.
>
> I've got news from the HP support team. HP suggested us to buy an
> additional module for the SmartArray Controller:
>
> HP Battery Backed Write Cache Enabler Kit - für ProLiant
> for Smart Array 6i: optional 128MB BBWC
>
> According to HP there are more options with this module in the HP
> Array Configuration Utility panel available (Read/write IO cache ratio).
>
> Has anyone on this mailinglist experience with the BBWC module? Could
> this module solve our problems?
>
> Best regards
> Markus
>
> matilda matilda wrote:
>> Hi all, hi Heiko,
>>
>> it's really interesting to hear that there are more people out there
>> being not too satisfied by the I/O-Performance of the
>> SmartArray-Controller.
>> Is it a SmartArray-Controller you're talking about?
>> We're using it with SLES9 and have/had problems in certain
>> circumstances.
>>
>> Would like to heare if you're also talking about the
>> SmartArray-Controller.
>>
>> Best regards
>> Andreas Mock
>>   
>
-- 
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