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Date:      Wed, 25 Oct 2006 01:35:10 -0700
From:      Ulf Zimmermann <ulf@Alameda.net>
To:        Geoff Buckingham <geoffb@chuggalug.clues.com>
Cc:        freebsd-scsi@freebsd.org, Ulf Zimmermann <ulf@Alameda.net>, Geoff Buckingham <Geoff.Buckingham@reuters.com>, freebsd-proliant@freebsd.org
Subject:   Re: ProLiant DL360 G4p: ciss(4) boottime oddity
Message-ID:  <20061025083510.GS98520@evil.alameda.net>
In-Reply-To: <20061025081034.GA26833@chuggalug.clues.com>
References:  <8753F8EA457BFF4A9707CADA143C8F6801C75434@LONSMSXM04.emea.ime.reuters.com> <20061020192711.GQ98520@evil.alameda.net> <20061025081034.GA26833@chuggalug.clues.com>

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On Wed, Oct 25, 2006 at 08:10:34AM +0000, Geoff Buckingham wrote:
>  As another data point, a colleage has informed me the delay does not occur
> on new Proliants with the SAS versions of the ciss controller.
> (This is with the same kernel that gives us delays on the U320 versions.)

Might be of interest to hear which SAS controller he has which doesn't
have the delay. There are several different controllers. E200 is the
cheap low end version available, both as PCI-E and module for servers
such as DL360 g5, DL380 g5, etc. It also comes in at least 2 versions
64MB Cache or 128MB Battery Backed Write Cache. 

Then there is the P400, again as PCI-E or module. Again with 2 cache 
versions, 256MB and 512MB with Battery Backed Write Cache.

And then there is the P600, which is PCIX, also in either 256MB or
512MB, both Battery Backed Write Cache.

The E200/64MB supports only RAID 0/1, E200/128MB does RAID 0/1/5, while
the P400 and P600 do RAID 0/1/5/6.

-- 
Regards, Ulf.

---------------------------------------------------------------------
Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-865-0204
You can find my resume at: http://seven.Alameda.net/~ulf/resume.html



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