From: Aaron W Morris (Decep@NETSCAPE.NET)
Date: Mon Sep 09 2002 - 11:38:44 EDT
A SCSI controller is just like any other SCSI device. You can have multiple controllers on a single chain as long as each controller is uses a separate ID. It is conceivable to have one hard drive and 7 controllers on the same chain.
Bill Zhang <aicc_us@YAHOO.COM> wrote:
>on 43p_A I set the SCSI ID 0 for the local disk (boot
>disk) and ID 3 for the shared disk. the shared disk is
>connected to rear panel with a ribbon cable and the
>third connector is pluged in to 43p_B which local
>disks IDs are set to 0 and 1. I booted up 43p_A and
>can see both disks. 43p_B can't be booted up.
>I'm wondering if both contrallors on these machines
>can sit on one single bus. They both have SCSI ID 7 as
>initiators.
> ribbon bable
> ________________________
> | | |
> | | |
> 43P_A shared disk 43p_B
>
>what is wrong?
>
>Thanks a lot!
>
>Bill
>
>
>--- Aaron W Morris <Decep@NETSCAPE.NET> wrote:
>> If you notice, the internal 68-pin connector is the
>> same as an external 68-pin connector; unless, of
>> course, the external connector is the mini-lvd type.
>>
>> Bill Zhang <aicc_us@YAHOO.COM> wrote:
>>
>> >Bill,
>> >
>> >I was laughing at myself trying to connect
>> >43p,disk,43p using a two device ribbon cable.
>> >obviously it won't work.
>> >So, a three way cable is the one I need.
>> >I can even use a internal(68-pin) disk as a
>> external
>> >disk?
>> >
>> >Bill
>> >--- Bill Verzal <Bill_Verzal@BCBSIL.COM> wrote:
>> >> You'd be better served to create a SCSI twintail.
>> >
>> >
>> >> 43p ----- disk ---- 43p
>> >>
>> >> BV
>> >>
>>
>>--------------------------------------------------------------------------------------------------------
>> >>
>> >> Bill Verzal
>> >> Technical Consultant
>> >> Forbes Technical Consulting
>> >> (312) 653-3684
>> >> bill_verzal@bcbsil.com
>> >> MailStop: 27.201C
>> >>
>> >>
>> >>
>> >> Bill Zhang
>> >> <aicc_us@YAHOO To:
>> >> aix-l@Princeton.EDU
>> >> .COM> cc:
>> >> Sent by: IBM Subject:
>> >> hardware needed to install HACMP?
>> >> AIX Discussion
>> >> List
>> >> <aix-l@Princet
>> >> on.EDU>
>> >>
>> >>
>> >> 08/29/2002
>> >> 10:04 AM
>> >> Please respond
>> >> to IBM AIX
>> >> Discussion
>> >> List
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >> Hi All,
>> >> I'm trying to install HACMP in my lab.
>> >> I want to include two nodes(43p) in this cluster.
>> I
>> >> have two ethernet cards on each nodes. I need a
>> SCSI
>> >> disk for the two computer to share.
>> >>
>> >> My question is:
>> >> Can I use any 68-pin scsi disk and connect this
>> disk
>> >> to the nodes with a Y cable?
>> >>
>> >> Are these all I need?
>> >>
>> >> TIA
>> >>
>> >> Bill
>> >>
>> >>
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>>
>> --
>> -Aaron W Morris
>>
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>>
>>
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-- -Aaron W Morris If not fully satisfied with this email, please return unread portion for a full refund. Offer void in Utah. Other restrictions apply. __________________________________________________________________ The NEW Netscape 7.0 browser is now available. Upgrade now! http://channels.netscape.com/ns/browsers/download.jsp Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/
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