[lug] Mixing SSD and HDD in Dell R310 server

[Stephen Kraus]

I have had this issue as well, my SSD will not boot properly....but I
reboot it and it comes right back.

On Wed, Apr 25, 2012 at 6:08 PM, <scott.herod at comcast.net> wrote:

> Hello all,
>
> I've been beating my head against this for hours.  I've got two Dell r310
> 1U servers.  They have four drive bays which are cabled directly to the
> motherboard. In bay A I have an HDD which has CentOS 6.2 installed.  In the
> other three bays I've placed three Crucial 64G SSDs that I'd eventually
> like to configure with Raid 0.  Neither server will boot if I enable the
> SSD in bay C.  The boot order is set to boot from disk only with bay A at
> the top of the list.  The SATA controller is set to ATA, not RAID.  BIOS
> boot is turned on (rather than UEFI.)
>
> The system boots fine if either or both SSDs in bays B and D are enabled.
>
> Occasionally the system will fall into the GRUB menu so it must recognize
> bay A as containing the boot disk.  Every once in a while it will actually
> find and run load the kernel.
>
> Curiously, when I enabled the SSD in bay C through the BIOS, Dell's
> hardware diagnostics tool saw neither it nor the HDD in bay A.  With the
> SSD disabled, it recognized the HDD in bay A and the SSDs in bays B and D.
>
> Could the speed difference between the HDD and SSD be confusing the
> system?  I've not tried putting an HDD in bay C or moving the HDD from A to
> B to see if then D causes a problem.
>
> Thanks,
>
> Scott
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