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Date:      Mon, 19 May 2008 13:22:45 +0900
From:      Shunsuke SHINOMIYA <shino@fornext.org>
To:        Daniel Ponticello <daniel@skytek.it>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Disk access/MPT under ESX3.5
Message-ID:  <20080519130031.8978.A2D40D1E@fornext.org>
In-Reply-To: <48303A1B.9000103@skytek.it>
References:  <48303A1B.9000103@skytek.it>

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> da0 at mpt0 bus 0 target 0 lun 0
> da0: <VMware Virtual disk 1.0> Fixed Direct Access SCSI-2 device
> da0: 3.300MB/s transfers
> da0: Command Queueing Enabled
> da0: 34816MB (71303168 512 byte sectors: 255H 63S/T 4438C)

 Can you re-negotiate transfer rate, using camcontrol?
 `camcontrol negotiate 0:0 -W 16' might improve that transfer settings.
 
 camcontrol needs passthrough device support in a kernel.


-- 
Shunsuke SHINOMIYA <shino@fornext.org>




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