[HPADM] Re: Summary/Additional question: disk and file system help

From: Roy Kidder (RoyKidder_at_yahoo.com)
Date: 05/19/04

  • Next message: Neeraj Lal: "[HPADM] SUMMARY :Script Question" 
    Date: Wed, 19 May 2004 11:25:53 -0400 (EDT)
To: "Roy Kidder" <RoyKidder@yahoo.com>

    Roy Kidder said:
    > I'm new to HP-UX and am trying to wrap my head around the concepts of
    > volume groups and logical volumes versus partitions as well as the
    > different local file systems that HP-UX supports.
    > ..
    > ..

    I got quite a few good responses to this and I think I'm starting to
    understand. Thanks to everyone who responded. There's an addition to the
    question below the summary, if anyone would like to field that one. ;)

    Summary:

    Physical volume = a physical hard drive

    Volume group = a group of PVs

    Logical volumes = space allocated out of a VG (partition, for lack of a
    better word). Can be a file system, or swap or dump space. Exist entirely
    inside a VM, but can potentially span multiple PVs within that group.

    File systems: HFS (non-journaling), VxFS (journaling), raw (databases,
    etc). For 11.00 (OS on my machine) must have /stand on HFS.

    Additional question:

    With regards to redundancy, how do I go about setting up a software-level
    RAID set? I've read that HP-UX supports the two types I'd be interested
    in: RAID 1 and Raid 5.

    Thanks again,
    Roy 

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