[linux-lvm] Limits

[Luke Reeves]

Excellent, that's exactly what I needed.  Thanks Ryan!
 
    Luke
-----Original Message-----
From: Ryan Leathers [mailto:Ryan.Leathers at globalknowledge.com]
Sent: Friday, September 27, 2002 3:01 PM
To: 'linux-lvm at sistina.com'
Subject: RE: [linux-lvm] Limits


Here is your answer taken from a document that helped me with the same
question

http://www-106.ibm.com/developerworks/library/l-lvm2.html
The extent size determines the maximum size that a logical volume can
be. As you can see from the above output, a 4 MB extent size imposes a
logical volume size limitation of 256 Gigabytes, which is an easily
attainable logical volume size if you're adding several high-capacity
drives to your volume group. If your volumes could end up being greater
than 256 GB apiece, I recommend specifying a larger extent size at
vgcreate time. Extents can range anywhere from 8 KB to 512 MB, and must
always be a multiple of two. By increasing the extent size above 4 MB,
the maximum physical volume size will be scaled accordingly, up to a
maximum of 1 Petabyte (although the current real-world size limit is 2
Terabytes on x86 systems). For example, if I wanted to create a volume
group with 32 Megabyte extents, I'd type: 

 
# vgcreate -s 32M main /dev/hda5
 
 
 
 
-----Original Message-----
From: Luke Reeves [mailto:luke at oceanlake.com]
Sent: Friday, September 27, 2002 2:55 PM
To: 'linux-lvm at sistina.com'
Subject: [linux-lvm] Limits
 
What are the current limits (specifically on LVM 1.0.5) of each
volume/disk?  I read 255GB in one of the docs.  Can anyone fill me in?
Thanks.
        Luke Reeves 
        luke at oceanlake.com 
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