Just remember what I posted.
You cannot rebuild a workfile from a CP UPLOAD.
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Chad Ziesemer
Sent: Thursday, March 23, 2017 8:33 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] Incremental Workfiles/CSA database (was Re: Network
Attached Storage for backups)
Thanks Duc and Joe! Indeed, me and CSA_Save and CSA_Merge are now best
friends. I also agree it's not as scary looking at it again after working
through it, just experienced this 'gap' in the weekly back-up strategies being
discussed and wanted to note it. We are growing at a thirsty clip so we edit
all the time. For us and similar heavy-editing locations increasing back-up
frequency of these particular files is a good idea.
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Joe Riccardi
Sent: Thursday, March 23, 2017 10:27 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] Incremental Workfiles/CSA database (was Re: Network
Attached Storage for backups)
Duc is always dead on so just FYI, in our case we seldom make ICC changes. But
when we do, we run backups. Part of the backup script runs CSA_Save and adds
the resultant CP files to the backup.
Sent from my iPhone
On Mar 23, 2017, at 11:06 AM, Duc M Do <duc@xxxxxxxxxx> wrote:
The thread is forked so I start a new Subject: line.
Chad,
There are other issues when you have a host fails in this
manner/timing you describe, but let's concentrate on the issues at
hand, namely workfiles and CSA database.
You don't really have to worry about your workfiles *unless* your CPs
also fail at the same time (in that case, call Schneider GCS and
they'll help you recover from that disaster: "Initialize. Reload!").
Once you restore your host with your latest backup, just upload from
your CP and the workfile now matches what's running in the CP. Repeat for all
CPs.
The Foxboro archive at freelists.org is full of tales of woes when old
workfiles get reloaded from old (ancient) backups. But your scenario
assumes that you have very recent backups so unless you've made
extensive edits all week, you shouldn't be in too bad of a shape when
you reload from your Sunday backup. (But do heed Alex Johnson's warning in
this missive:
//www.freelists.org/post/foxboro/foxboro-CP-Image-WorkFile-and-CS
A,3)
Joe Ricardi alluded to CSA_Save as a tool to back up your CSA database
(in /usr/fox/csa). Depending on how often you make backups and whether
any changes have been made to the CSA database since the last backup,
you may have to do some manual editing to get your database in sync,
but it's not as daunting as it sounds. CSA_Save and CSA_Merge are your
friends, make acquaintance with them before the time when you really
need them so it's not scary.
Duc
On Thu, Mar 23, 2017 at 9:49 AM, Chad Ziesemer <
cziesemer@xxxxxxxxxxxxxxxxxxx> wrote:
Jacques, excellent topic, thanks for starting the thread. This
probably only applies to ICC users: For those doing weekly back-ups,
how do you handle keeping the work-file, CSA, and CPs in sync if the box
with the
work-file or the CSA fails and needs to be restored? I recently worked
through this and the procedures to get them synced back up was, well
very fun. (Aside: Huge thanks to all the content you've all added to
the freelist archives! It demoted a crisis to a learning
experience). Say you do this:
Back-up entire system on Sunday nights Make CP edits on Monday -
Thursday Host server fails on Friday Restore server to backup from
Sunday
Your work file (and CSA if it's on the same box) is going to be
missing all of the edits from the past week.
In this case daily isn't even enough if there's an ill-timed failure.
Is this a case where incremental back-ups of these files should be used?
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