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Bug 928997 - Determine which LVM device types can be stacked, in which order.
Summary: Determine which LVM device types can be stacked, in which order.
Keywords:
Status: CLOSED DUPLICATE of bug 928996
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: lvm2
Version: 7.0
Hardware: All
OS: Linux
high
high
Target Milestone: beta
: ---
Assignee: LVM and device-mapper development team
QA Contact: cluster-qe@redhat.com
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-03-28 23:59 UTC by Tom Coughlan
Modified: 2023-03-08 07:25 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-05-14 08:45:10 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Tom Coughlan 2013-03-28 23:59:19 UTC 
LVM has recently added several new device types based on dm-raid, thinp, thin snap, (and soon) dm-cache. These are in addition to linear, stripe, mirror. We also have crypt, multipath, and md outside LVM.  

We need to specify which combinations of these device types are allowed to be stacked, and in which order. Additional factors, like external origins, metadata, and log devices must be considered.  

Code may be required to disallow unsupported combinations.

Instructions for how to properly create these stacked devices needs to be included in the LVM documentation. 

Full testing of the allowed combinations needs to be included in the QE plan.
Comment 1 Zdenek Kabelac 2013-05-14 08:45:10 UTC 

*** This bug has been marked as a duplicate of bug 928996 ***
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