>LVM and md (the multidisk layer) are two things. lvm deals with dynamic
>reassignment of space which is a nice thing to have. The md layer deals
>with raid 0 1 and 5. With md you can concatenate and stripe volumes.

Many thanks, Alan.  I did not know about md and thought that LVM was my
only option to put together multiple volumes.  Finally realized the
software raid is available with loader and fdisk.



Mark D Pace
Senior Systems Engineer
Mainline Information Systems
1700 Summit Lake Drive
Tallahassee, FL. 32311
[EMAIL PROTECTED]
Phone: 850-219-5184
Fax: 850-219-5050
http://www.mainline.com


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                    Alan Cox
                    <[EMAIL PROTECTED]        To:     [EMAIL PROTECTED]
                    uu.org.uk>              cc:
                    Sent by: Linux          Subject:     Re: RedHat 7.2 and LVM
                    on 390 Port
                    <[EMAIL PROTECTED]
                    RIST.EDU>


                    01/17/2002 12:43
                    PM
                    Please respond
                    to Linux on 390
                    Port






> Major bummer.  I was hoping to replace a PC mailserver,  but need much
more
> than 2GB (1 DASD) for /var.
> Trying to allocate more DASD volumes to different mountpoints within /var
> would be a nightmare.

LVM and md (the multidisk layer) are two things. lvm deals with dynamic
reassignment of space which is a nice thing to have. The md layer deals
with raid 0 1 and 5. With md you can concatenate and stripe volumes. You
can also do raid 1 and 5 although on S/390 I find it hard to see why you
would do that at the Linux level

Alan


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