Re: Upgrading RAID controller with system partition
From: Pat Horridge (pat_at_remove-spam.vet.co.uk)
Date: 10/25/04
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Date: Mon, 25 Oct 2004 16:58:22 +0100
"Darren Thorley" <dthorley@intellesys.com> wrote in message
news:73853e4c.0410230833.19b13f90@posting.google.com...
> Dale Walker <dale@sorted.org> wrote in message
> news:<thqan0hpqtk9lbo145vmoti8n5fi64nn4o@4ax.com>...
>> On 19 Oct 2004 09:36:57 -0700, dthorley@intellesys.com (Darren
>> Thorley) wrote:
>>
>> >I have been having loads of issues with my adaptec 1200a IDE RAID
>> >controller with 2 mirrored sets on it. The server has been randomly
>> >crashing. I have had a couple of BSOD and a couple of missing files on
>> >start up that has led me to feel it was either the hard disks or the
>> >controller. I have replaced the hard disks and the controller with an
>> >identical one. I am still getting the problem. I have tried logging a
>> >call with Adaptec tech support but other than the automated response I
>> >have heard nothing.
>> >
>> >I am now thinking of giving up on IDE RAID as a false economy that
>> >doesn't work and going on to SCSI RAID.
>> >
>> >Unfortunately a rebuild is a last resort option so I am looking for a
>> >way to move from the IDE to the SCSI without having to take this
>> >option and retain my SBS intact. Unfortunately I have no idea where to
>> >start with this. I have seen posts on changing IDE RAID controllers
>> >with different chipsets. Is it the same procedure?
>> >
>> >Am I better off giving up on the inplace upgrade procedure and going
>> >with a rebuild straight off?
>> >
>> >Thanks in advance for any advice given.
>>
>> Don't give up on them yet.
>>
>> Same thing happened to me with a couple of SATA drives. They worked
>> perfectly in my backup machine but never on the one I intended to put
>> them on. I never had a problem once things got going but I'd spend 3
>> or 4 attempts to get the machine to boot. Went through everything and
>> finally worked out my psu couldn't quite keep up with the sudden load
>> of firing up two disks simultaneously.
>>
>> Try removing the power from CD-ROM, floppy, other non-essential HDs
>> and any other non-essential devices. Then connect the two different
>> drives to two different power cables (don't just use a splitter). If
>> all is well, then chances are you need a beefier PSU.
>>
>> I've also had some clients with flaky systems due to dodgy cables. I
>> take it you've checked those?
>
> Thanks for the reply. I have checked the cables. I have another system
> where it locks up from time to time (no BSOD or failed boots yet). I
> have changed everything including all the cables but not the PSU and
> the actual hard disks. I will give the PSU a go and see if that helps.
>
> The weird thing is that this other system locks up repeatedly until I
> do a defrag of the disks, then it runs fine again for another month or
> so.
Not so weird if it's PSU.
With fragmented drives theres a lot more seeking going on this must add to
the PSU load.
Maybe the PSU is at the limit of delivery and that extra load causes noise
on the supply rails.
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