Seeking advice about RAID

[Scott Medling]

I use mdadm to manage a software RAID 5 array.  The man page is thorough and
there are plenty of online resources.  There is no GUI that I know of, but
you can set it up to self-monitor and e-mail you if there is a problem so I
haven't really interacted with mdadm much since I got it up and running.

Given the lack of time generally spent dealing with the array, I wouldn't go
with hardware RAID unless you need it for the performance advantage (which
is slight IMO if your CPU isn't maxed).

-Scott

On 4/13/07, Bart Silverstrim <bsilver at chrononomicon.com> wrote:
>
> I'm working on assembling a new workstation for running Ubuntu.
>
> I am going to get a system running RAID 1.  The system I've spec'd
> out is currently configured with a 3ware RAID card on advice from the
> vendor (rather than using the motherboard's built-in RAID...
> (Motherboard is an Asus P5N32-SLI SE Deluxe, 3ware card is a 3Ware
> 9650SE-2LP 2-port PCI-E SATA2 controller).
>
> I've used a 3Ware product before, and liked the ease with which I can
> access a graphical status of the card from the web page (3dm2?), plus
> 3ware support should be for the most part plug and play with current
> kernels and creating/managing the arrays, if all else fails, should
> be simple from the bootup screen's hotkey-setup on the controller;
> Linux wouldn't need to worry about managing the RAID disks because it
> would virtually invisible to the system.
>
> But I've also read that software RAID 1 under Linux should work well
> now too; the problem for me is monitoring/checking status in a quick
> and easy way (and doing setup, rebuilding, etc.).
>
> Questions:
> For software RAID, are there good tools to use for configuring/
> monitoring/interacting with the volumes now?  Graphical ones?
> Is the 3Ware worth the extra money to install, given that it's true
> hardware RAID and has 3dm and a CLI tool for configuration?  It
> sounded like 3ware was well supported under Linux and generally
> reputable, and rebuilding/using the controller is a relatively no-
> hassle deal.
>
> Anyone have advice or input?
>
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