Re: linux-raid compatable w/ Adaptec AIC-7902?

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"Eric" == Eric Pretorious [off-list ref] writes:

    Eric> On Wednesday 29 June 2005 07:10 pm, Guy wrote:
    >>> md: delaying resync of md0 until md2 has finished resync (they
    >>> share one or more physical units) md: delaying resync of md1
    >>> until md2 has finished resync (they share one or more physical
    >>> units) ...
    >>> 
    >>> Should I be concerned by the last two lines?
    >> No, this is normal.  Your 3 arrays are on the same disk(s).  In
    >> this case, it is faster to do them 1 at a time.

    Eric> Oh - I get it: md can only work on one RAID at a time
    Eric> because md0, md1, & md2 are all on sda & sdb (i.e., sda is
    Eric> mirrored on sdb). Thanks!

I'm not DELIBERATELY trying to be rude here, but I want you to find the
answer yourself... :)

WHY are you putting multiple md's on the same disks? Did you intend to
do something like this?

   md0          /boot      sd[ab]1
   md1          /          sd[ab]2
   md2          /usr       sd[ab]3
   md3          /var       sd[ab]4

Just one question (this is the magic :). What do you gain by this? And
why do you do it?
-- 
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On Monday 04 July 2005 04:27 am, Turbo Fredriksson wrote:

WHY are you putting multiple md's on the same disks? Did you intend to
do something like this?

  md0          /boot      sd[ab]1
  md1          /          sd[ab]2
  md2          /usr       sd[ab]3
  md3          /var       sd[ab]4

Just one question (this is the magic :). What do you gain by this? And
why do you do it?

I'm just trying to mirror two disks - that's all. Is there a better way?

-- 
Eric P.,
Truckee, CA

eric@pretorious.net (Eric Pretorious) writes:

I'm just trying to mirror two disks - that's all. Is there a better way?

LVM on top of RAID! ;-)
-- 
Mathieu Chouquet-Stringer
    "Le disparu, si l'on vénère sa mémoire, est plus présent et
                 plus puissant que le vivant".
           -- Antoine de Saint-Exupéry, Citadelle --
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