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Bug 1136187 - RO disk documentation
RO disk documentation
Status: CLOSED CURRENTRELEASE
Product: Red Hat Enterprise Virtualization Manager
Classification: Red Hat
Component: Documentation (Show other bugs)
3.4.0
Unspecified Unspecified
unspecified Severity unspecified
: ---
: 3.5.0
Assigned To: Julie
Lucy Bopf
:
Depends On:
Blocks:
  Show dependency tree / graph
 
Reported: 2014-09-02 02:34 EDT by Vered Volansky
Modified: 2015-02-12 23:00 EST (History)
7 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2015-02-12 23:00:59 EST
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Vered Volansky 2014-09-02 02:34:40 EDT 
We saw two issues in bz1074346:
http://documentation-devel.engineering.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.5-Beta/html-single/Administration_Guide/index.html#Read_Only_Disks_in_Red_Hat_Enterprise_Virtualization



> > Red Hat Enterprise Virtualization allows you to mark virtual machine hard
> > disks as Read Only and attach those disks to virtual machines.

The disk is not read-only, it's a ATTACHED as read only to a VM.
maybe something like:
"Red Hat Enterprise Virtualization allows you to mark virtual machine hard
disks as Read Only when attached to virtual machines."

> > Floating disks are always rewritable and cannot be marked read-only.
This is not wrong, but it's important to clarify that RO is a property of the VM-Disk relationship. A floating disk is not attached to a VM, and therefore cannot ever be RO. We don't want customer to expect to be able to edit this property on floating disk in the future.
Comment 1 Allon Mureinik 2014-09-02 02:37:34 EDT 
(In reply to Vered Volansky from comment #0)
> We saw two issues in bz1074346:
> http://documentation-devel.engineering.redhat.com/site/documentation/en-US/
> Red_Hat_Enterprise_Virtualization/3.5-Beta/html-single/Administration_Guide/
> index.html#Read_Only_Disks_in_Red_Hat_Enterprise_Virtualization

Just to clarify - this isn't a request to reopen bz1074346 - the fix there is fine.
While examining it, though, additional (pre-exsiting) issues were noticed.
Comment 2 Julie 2014-12-08 03:20:17 EST 
Hi Vered,
   Thanks for filing this bug. 
I have made the following changes:
"Red Hat Enterprise Virtualization allows you to mark a virtual machine hard disk as Read Only when attaching the hard disk to a virtual machine."

"Floating disks are not attached to a virtual machine and cannot be marked read-only." 


Can you let me know if this is now clear enough and let me know if you have further feedback.

Many thanks,
Julie
Comment 3 Allon Mureinik 2014-12-08 11:08:28 EST 
Hi Julie,

The import thing to clarify here is that read-only or read-write is not an intrinsic property of the disk, but of how it's *attached to the vm*. The given paragraph may be misunderstood a meaning that the disk becomes read-only when attached to a VM. Perhaps an extra clarification would be beneficial? Something down the lines of:

"""
Red Hat Enterprise Virtualization allows you to mark a virtual machine hard disk as read-only when attaching the hard disk to a virtual machine - on that virtual machine. The disk may still be attached as read-write on other virtual machines.
"""
Comment 6 Lucy Bopf 2014-12-10 08:07:47 EST 
VERIFIED - The content has been updated as discussed within this bug.
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