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Date:      Fri, 28 Apr 2000 15:14:21 -0400
From:      Mike Tancsa <mike@sentex.ca>
To:        "Jim King" <king@sstar.com>
Cc:        <freebsd-stable@FreeBSD.ORG>
Subject:   Re: How good is AMI MegaRAID support? 
Message-ID:  <3.0.5.32.20000428151421.02505bf0@marble.sentex.ca>
In-Reply-To: <004d01bfb141$96fb5eb0$a44b8486@jking>
References:  <200004281749.KAA00403@mass.cdrom.com>

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At 01:43 PM 4/28/00 -0500, Jim King wrote:
>Mike Smith wrote:
>> In summary, however, I would at this very moment recommend the Mylex
>> adapter family over the AMI family.  I'm hoping to bring things to a more
>> equitable state in the coming months, but time alone will tell.
>
>Are there any particular Mylex models to avoid, or that are highly
>recommended?  Some of the older non-Ultra DAC960's are priced attractively
>on eBay.

msmith is obviously the authority on this, but I have been using 
DAC960PL
and the
DAC960P/PD

both bought on ebay actually with good results.

More verbose output below....


mlx1: DAC960P/PD, 1 channel, firmware 3.51--48, 4MB RAM
  Hardware ID                 0x03020101
  Firmware ID                 0x30043303
  Configured/Actual channels  1/1
  Max Targets                 16
  Max Tags                    2
  Max System Drives           32
  Max Arms                    8
  Max Spans                   4
  DRAM/cache/flash/NVRAM size 4194304/3014656/262144/8192
  DRAM type                   0
  Clock Speed                 40ns
  Hardware Speed              280ns
  Max Commands                63
  Max SG Entries              17
  Max DP                      256
  Max IOD                     765
  Max Comb                    304
  Latency                     45s
  SCSI Timeout                6s
  Min Free Lines              32
  Rate Constant               50
  MAXBLK                      128
  Blocking Factor             1 sectors
  Cache Line Size             16 blocks
  SCSI Capability             20MHz, 16 bit
  Firmware Build Number       0
  Fault Management Type       1

and

mlx0: DAC960PL, 1 channel, firmware 3.51--48, 32MB RAM
  Hardware ID                 0x03020102
  Firmware ID                 0x30043303
  Configured/Actual channels  1/1
  Max Targets                 16
  Max Tags                    2
  Max System Drives           32
  Max Arms                    8
  Max Spans                   4
  DRAM/cache/flash/NVRAM size 33554432/32178176/262144/8192
  DRAM type                   0
  Clock Speed                 40ns
  Hardware Speed              350ns
  Max Commands                63
  Max SG Entries              17
  Max DP                      256
  Max IOD                     765
  Max Comb                    304
  Latency                     19s
  SCSI Timeout                6s
  Min Free Lines              32
  Rate Constant               50
  MAXBLK                      128
  Blocking Factor             1 sectors
  Cache Line Size             16 blocks
  SCSI Capability             10MHz, 16 bit
  Firmware Build Number       0

	---Mike
------------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications                             mike@sentex.net
Cambridge, Ontario Canada                         www.sentex.net


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