Re: need help

[Michael Clark]

2.4.18 needs a hint added to drivers/scsi/scsi_scan.c
to allow it to scan targets with sparse luns.

Look in /proc/scsi/scsi for the vendor and model and
add them into the device_list array in scsi_scan.c

...
{"<VENDOR>", "<MODEL>", "*", BLIST_SPARSELUN},

If you don't configure lun 0, you may have to use
BLIST_FORCELUN which if my understanding is correct
will force scanning of all luns.

I hear there is some REPORT_LUNS code that will
eliminate the need to do this, although don't know
which kernel has it.

~mc

On 06/08/02 19:27, manjuanth n wrote:

>Dear sir,
> we have SAN environment  with hitachi  storage box
>and  brocade  switch. we are trying to  install Linux 
>with  qlogic  HBA card.  we  are facing strange 
>problems 
>1. If  we  disable LUN 0  we will not be able to see
>any LUNs on liunx  machine
>2. If we  enable  LUN 0  we can  see all the  LUNS 
>but  it  should be in sequence  i.e LUN0 ,1,2 , 3  etc
>if we disable  LUN 3  we will not be able  to see LUNS
>4 and  the  rest
> Is the  above things  are limitation of linux.
>Linux  machine is  running with  2.4.18 kernel
>
>Is there any solutions for  these problems? 
>
>Thanks and Regards
>Manjuanth
>
>
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