[NTLUG:Discuss] [Bulk] Re: Adding harddrives

[Leroy Tennison]

m m wrote:
> All drives connected internally to the scsi card. Include working and 
> no-working.
>
> Burton suggest to enable the 2nd connection via the firmware on the 
> controller during the boot. I don't see any options/informations allow me to 
> do so.
> It just display imformation and keep on going. no way to held on it or do 
> any thing on it.
>
> Still need help. thanks.
>
>
>   
>> From: David Evans <david at bluelinetech.com>
>>
>> Are the working drives connected internally to the scsi card and the are
>> the other two drives connected externally????
>>
>> m m wrote:
>>
>>     
>>> All:
>>>
>>> I think that there is a problem on the SCSI Controller,
>>> when at boot time, It only show 2 logical Hard Drive detected.
>>>
>>> on the hardware setting:
>>> I have a cable with 4 scsi connecters (DB68), 2 direct to  connect to the
>>> harddrive (id# are 0,1) and
>>> the new added 2 hard drives have to use the SCA 2 connector (see the 
>>>       
>> image
>>     
>>> url
>>> http://www.ramelectronics.net/html/scsi_adapters.html#sca-80-LVD ) to
>>> connect to  the  cable(id# set to 2,3) because they are different 
>>>       
>> connector
>>     
>>> (SCA)
>>>
>>> However, the  Hewlett Packard Compaq SMART-2SL SCSI Controller only "see" 
>>>       
>> 2
>>     
>>> hard drives. There are no any error/unusual messages pop up. Ran kudzu, 
>>>       
>> it
>>     
>>> don't detect the additional 2 hard drives.
>>>
>>> Can any one help?
>>>
>>> Thanks.
>>>
>>>
>>>
>>>
>>>
>>>
>>>       
>>>> From: David Stanaway <david at stanaway.net>
>>>> Reply-To: NTLUG Discussion List <Discuss at ntlug.org>
>>>> To: trryhend at gmail.com, NTLUG Discussion List <Discuss at ntlug.org>
>>>> Subject: Re: [NTLUG:Discuss] Adding harddrives
>>>> Date: Sun, 16 Apr 2006 00:04:44 -0500
>>>>
>>>> Terry wrote:
>>>>
>>>>
>>>>         
>>>>> On 4/15/06, m m <llliiilll at hotmail.com> wrote:
>>>>>
>>>>>
>>>>>           
>>>>>> All:
>>>>>>
>>>>>> I  am  running Tao Linux with Compaq Smart 2SL RAID card.
>>>>>> I tried to add 2 hard drives into the box to gain some space.
>>>>>> Find that is not as what I did without RAID card.
>>>>>> Don't get any use information for google.
>>>>>>
>>>>>> What I need is to gain more space. Don't have to be RAID 2 or 3 or
>>>>>>
>>>>>>
>>>>>>             
>>>> 5....
>>>>
>>>>
>>>>         
>>>>>> Here is the basic information:
>>>>>>
>>>>>> [r at server home]# df -h
>>>>>> Filesystem            Size  Used Avail Use% Mounted on
>>>>>> /dev/ida/c0d0p3       8.1G  6.2G  1.5G  82% /
>>>>>> /dev/ida/c0d0p1        97M  9.1M   83M  10% /boot
>>>>>> none                   62M     0   62M   0% /dev/shm
>>>>>> /dev/ida/c0d1p1       8.4G  6.7G  1.3G  84% /w3
>>>>>>
>>>>>> I have two SCSI hard drive,  Linux OS was installed on 
>>>>>>             
>> /dev/ida/c0d0p3,
>>     
>>>>>>             
>>>> and
>>>>
>>>>
>>>>         
>>>>>> another one just for file storage mount as /w3
>>>>>>
>>>>>> How to I  get my another SCSI harddrive mounted as /w4 and /w5?
>>>>>>
>>>>>> Can any one help?
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>             
>>>>> Add lines to /etc/fstab file something like this:
>>>>> dev/sdc1    /w4    auto noauto,user     0  0
>>>>> dev/sdc2    /w5    auto noauto,user     0  0
>>>>>
>>>>>
>>>>>
>>>>>           
>>>> First, I would look at the contents of /proc/partitions and dmesg (Soon
>>>> after booting so you see it all).
>>>>
>>>>
>>>>
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>>>>         
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>   

"In order to configure SCSI, you need a chicken to sacrifice" - from a 
Microsoft customer who I was trying to help when I was with their 
network support.

You mentioned a SCA connection.  If I remember right these also supply 
power to the drives, is that correct?  Are the "problem" drives spinning 
up and do they show "signs of life"?  (It's things like these that have 
caused me to develop a hatred of SCSI - "the thing I like about 
standards is that there are so many to choose from": at least four 
different data connectors, single-ended versus low and high voltage 
differential which makes for enough variation to insure that nothing 
matches.)  What happens if you disconnect the two drives which are seen, 
does the RAID adapter see anything?  Do you have an Adaptec RAID 
controller you can connect them to?  They have a little more 
configurability than the Compaq RAID adapters.  Where did you get this 
equipment?  How old is it?  Are the various pieces the same age 
relatively?  It sounds like you need to go back to the source and get 
individual pieces working before trying to attack the complex configuration.