Drive size limit?

christoph at linuxsoup.com christoph at linuxsoup.com
Tue Jun 15 23:03:00 EDT 2004


Even my ebay'd $25 IBM ServeRaid 3L card allows the creation of sub-luns.
Very handy!!

Jeffrey Pyne wrote:
> On Tuesday, June 08, 2004 5:54 AM, Billy SG McCarthy wrote:
> 
> > The thing I'm trying to avoid is creating mulitple logical 
> > drives within the external RAID.  The enclosure holds 12
> > disks, minus 1 as hot spare gives me 11.  If I cam make 1
> > RAID 5 logical drive I'll get the space of 10 of them.  If
> > I have to make 2 logical drives I'll only end up with the
> > space of 9 drives.  The way things go around here I need
> > all the space I can get.
> 
> Does your array not give you the ability to present a RAID group as multiple
> drives (or LUNs or Volumes)?  We have several different arrays here from a
> couple different vendors (EMC and Procom) and they all allow you to create a
> RAID group, and then present that to the hosts (if it's a SAN array) or the
> network (if it's NAS) as multiple volumes.   So we may have a 3.6 TB RAID-5,
> but it's presented to the hosts attached to it as 4 900 GB LUNs.
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