Re: 'open' epics backup?

["Pelaia II, Tom" <pelaiata@ornl.gov>]

At SNS we use the SCORE application which is part of XAL to save and restore PV values. Users can save and restore snapshots (stored in a database) and compare them with the live values. Saving and Restoring is currently on demand.

- Tom


On Aug 25, 2011, at 1:25 PM, <emmanuel_mayssat@lynceantech.com> wrote:

> On 12:41 Wed 24 Aug     , Pete Jemian wrote:
>> Not sure what type of backup you are considering.
>> Here's a couple tools or methods:
>> 
>> * persistence of PVs across IOC reboots: autosave, from synApps
>> * snapshots of a set of PVs at regular times: SDDS files
>> * time-series display of PVs: various including SDDS or rrdtool
> 
> I am currently using SDDS and moving away from it.
> (no python support, no used outside of epics community)
> I looked at RRDtool.
> Although that is not a backup utility, that's definitly something I want to use to move away from
> timeseries using SDDS. (which I also use) 
> Just a question: how do you take a time serie of thousands of PV with rrdtool at one time T?
> I assume you had to develop a ca plugin/utility, didn't you?
> 
> When I talked about backup, I am refering to snapshot, which can be restored.
> sddscasr can do that. Anything else?
> 
> 
> As far as IRMIS is concerned, well although I don't know much about it, just hearing IRMIS sounds
> complicated. Reading the IRMIS primer is confusing. I just want to take a snapshot and IRMIS, it seems
> to me, can do everything ;-)
> 
> 
> -- 
> Emmanuel