[CoLoCo] RAID controller

[Jim Hutchinson]

On 1/1/08, David L. Willson <DLWillson at thegeek.nu> wrote:
> > How do I know if I have a 64 bit PCI slot? If it helps, I have an Asus
> > A8N32SLI board.
>
> 64-bit PCI slots are about twice as long as normal PCI slots.
> Here for pictures:
> http://en.wikipedia.org/wiki/Peripheral_Component_Interconnect
> According to pictures I could find of your motherboard, you haven't got
> one.  You can still run a 64-bit card, but it won't go ~quite~ as fast
> as it could in my computer.  :-)

The specs on my board
(http://www.asus.com/products.aspx?modelmenu=2&model=744&l1=3&l2=15&l3=226&l4=0)
don't say anything about 32 or 64 bit. Probably means just 32. The
pics on the page don't look any different to me.

>
> > Yeah, I'm just screwing around. I have software RAID set up but I
> > don't think it works. My second drive (i.e. the mirror copy) is mostly
> > empty. That can't be right. I'd like a hardware RAID setup for backup
> > purposes.
>
> I'm not sure how you are even looking at the array elements separately.
> I didn't know you could do that.  I don't think you have the mirror you
> think you have.  Read this page for add'l info:
> http://linux-ata.org/faq-sata-raid.html

Well, using gparted I can see both drives. One has a lot of stuff the
other doesn't. With fdisk -l I see this...

Disk /dev/sda: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00026af0

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1       36230   291017443+  fd  Linux raid autodetect
/dev/sda2   *       36231       38662    19535040   fd  Linux raid autodetect
/dev/sda3           38663       38913     2016157+  82  Linux swap / Solaris

Disk /dev/sdb: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000b02b7

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       36230   291017443+  fd  Linux raid autodetect
/dev/sdb2           36231       38662    19535040   fd  Linux raid autodetect
/dev/sdb3           38663       38913     2016157+  82  Linux swap / Solaris

Disk /dev/md0: 298.0 GB, 298001760256 bytes
2 heads, 4 sectors/track, 72754336 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000

Disk /dev/md0 doesn't contain a valid partition table

Disk /dev/md1: 20.0 GB, 20003815424 bytes
2 heads, 4 sectors/track, 4883744 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000

Disk /dev/md1 doesn't contain a valid partition table

Sure looks like there are RAID partitions.

>
> Can you bring the box to the install-fest on Saturday?

What install-fest? I don't think I'll be going. My brother is supposed
to be coming for a delayed Christmas.

> Always my pleasure.  When are we-all drinking coffee together next?
>

I am going to try and go to the bug day on Thursday but not 100% sure
yet. Other than that, we can organize another Panera night. The last
one got canceled to might has well.

-jim

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