Re: Dell Hardware Recommendations

On 13-Aug-07, at 9:50 AM, Vivek Khera wrote:

>
> On Aug 10, 2007, at 4:36 PM, Merlin Moncure wrote:
>
>> I'm not so sure I agree.  They are using LSI firmware now (and so is
>> everyone else).  The servers are well built (highly subjective, I
>> admit) and configurable.  I have had some bad experiences with IBM
>> gear (adaptec controller though), and white box parts 3ware, etc.  I
>> can tell you that dell got us the storage and the server in record
>> time
>>
>> do agree on adaptec however
>
> Ok, perhaps you got luckier... I have two PowerVault 220 rack
> mounts with U320 SCSI drives in them. With an LSI 320-2X
> controller, it *refuses* to recognize some of the drives (channel 1
> on either array).  Dell blames LSI, LSI blames dell's backplane.
> This is consistent across multiple controllers we tried, and two
> different Dell disk arrays.  Dropping the SCSI speed to 160 is the
> only way to make them work.  I tend to believe LSI here.
>
This is the crux of the argument here. Perc/5 is a dell trademark.
They can ship any hardware they want and call it a Perc/5.

Dave
> The Adaptec 2230SLP controller recognizes the arrays fine, but
> tends to "drop" devices at inopportune moments.  Re-seating dropped
> devices starts a rebuild, but the speed is recognized as "1" and
> the rebuild takes two lifetimes to complete unless you insert a
> reboot of the system in there.  Totally unacceptable.  Again,
> dropping the scsi rate to 160 seems to make it more stable.
>
>

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