[Gluster-users] [Gluster-devel] User-serviceable snapshots design

[Sobhan Samantaray]

Hi Anand,
   Thanks to come-up with the nice design. I have couple of comments.

1. It should be mention in the design the access-protocols that should be used(NFS/CIFS etc) although the requirement states that. 
2. Consideration section:
"Again, this is not a performance oriented feature. Rather, the goal is to allow a seamless user-experience by allowing easy and useful access to snapshotted volumes and individual data stored in those volumes".

If it is something that fops performance would not be impacted due to the introduction of this feature then it should be clarified.

3. It's good to mention the default value of the option of uss.

Regards
Sobhan


From: "Paul Cuzner" <pcuzner at redhat.com>
To: anands at redhat.com
Cc: gluster-devel at gluster.org, "gluster-users" <gluster-users at gluster.org>, "Anand Avati" <aavati at redhat.com>
Sent: Tuesday, May 6, 2014 7:27:29 AM
Subject: Re: [Gluster-devel] [Gluster-users] User-serviceable snapshots	design

Just one question relating to thoughts around how you apply a filter to the snapshot view from a user's perspective. 

In the "considerations" section, it states - "We plan to introduce a configurable option to limit the number of snapshots visible under the USS feature." 
Would it not be possible to take the meta data from the snapshots to form a tree hierarchy when the number of snapshots present exceeds a given threshold, effectively organising the snaps by time. I think this would work better from an end-user workflow perspective. 

i.e. 
.snaps 
\/ Today 
+-- snap01_20140503_0800 
+-- snap02_ 20140503_ 1400 
> Last 7 days 
> 7-21 days 
> 21-60 days 
> 60-180days 
> 180days 







From: "Anand Subramanian" <ansubram at redhat.com> 
To: gluster-devel at nongnu.org, "gluster-users" <gluster-users at gluster.org> 
Cc: "Anand Avati" <aavati at redhat.com> 
Sent: Saturday, 3 May, 2014 2:35:26 AM 
Subject: [Gluster-users] User-serviceable snapshots design 

Attached is a basic write-up of the user-serviceable snapshot feature 
design (Avati's). Please take a look and let us know if you have 
questions of any sort... 

We have a basic implementation up now; reviews and upstream commit 
should follow very soon over the next week. 

Cheers, 
Anand 

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