Re: Backing up Yojimbo to JungleDisk Plus (or Rsync)

[Jeff Berg]

On Apr 26, 2008, at 12:42 PM, Bill Rowe wrote:

The combination of block-level file updates and a nightly backup  
schedule would greatly reduce the opportunity for the type of  
problem I describe to occur. Also, I assume the nightly backup  
occurs when you aren't actively using Yojimbo. I believe this  
explains you success to date but doesn't mean Yojimbo is inherently  
compatible with JungleDisk.


I'll can't disagree with that. My offsite backup takes place at  
2:30am--a time when I'm seldom at the computer and a logical time for  
such a backup to occur. The backups happens without shutting Yojimbo  
down and they are "incremental" (or block-level if you prefer)--my  
entire Yojimbo database isn't being uploaded every night, saving on  
time and upload charges to JD/S3. I can't speak for Time Machine's  
behavior with Yojimbo as I've never allowed it to back up those files  
but I do know of a colleague who learned that Time Machine wasn't  
backing up a shared File Maker database because it was always open.  
Perhaps the "core data/sqlite" nature of Yojimbo makes this less of an  
issue--that's for wonkier minds than mine to worry over. (And as I  
don't run Filemaker at this time, I have no idea what it's behavior  
would be vis-a-vis JungeDisk Plus.)


Take what you will from my findings, but I am satisfied that my  
Yojimbo data is being backed up on a nightly basis (with the proviso  
that if I'm working through the night, a backup might be skipped) as  
confirmed by the modification date on the JungleDisk'd Yojimbo file  
which I check regularly and my testing of that archived file--a  
procedure which will be repeated on an ad hoc basis. It may not be  
"inherently compatible" but since it looks and quacks like a duck, I  
believe I provided a satisfactory answer to the original question. And  
if I have to resort to my offsite backup--as opposed the local Time  
Machine/SuperDuper drive--I'd rather have a Yojimbo file from yesteray  
or last week (or even last month) than no file at all--and there are  
probably a number of higher priorities on my worry list.


YMMV. Best regards!

jab

==
Hit the road hard enough road gonna hit you back.
-- Eileen Quinn, Hit The Road





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Re: Backing up Yojimbo to JungleDisk Plus (or Rsync)

[Bill Rowe]

On 4/26/08 at 11:55 AM, [EMAIL PROTECTED] (Jeff Berg) wrote:


On Apr 9, 2008, at 9:10 PM, Doug Ransom wrote:


Does anyone know how effective  the block-level file updates
described in the Jungle Disk docs (below) will work with Yojimbo
database?



Sorry for the delay in replying to this but I didn't want to answer
until I'd tested a backup. JungleDisk Plus backs up the changes 
to my Yojimbo database on a nightly basis without any need to shut

Yojimbo down. I just tested the integrity of the backup this morning
and it was up-to-date as of yesterday.


I believe you will find JungleDisk Plus is no more or less 
compatible with Yojimbo than Time Machine or any other backup program.


I believe the basic problem with Yojimbo and back up programs is 
access to the database. If Yojimbo is active and making changes 
to the database when the back up program is actively backing up 
the Yojimbo data base then the back up will likely have problems 
at some level.


I am sure the time it takes Yojimbo to change a record in the 
database is small compared to the time a backup program takes to 
backup the entire database. Hence, if Yojimbo is active and 
making changes to the database, the backup copy of the database 
is likely to be inconsistent.


The likelihood of this actually happening will depend on several 
factors. A smaller database will clearly take less time to 
backup and provide less opportunity for this type of problem. 
Less frequent backups will also provide less opportunity.


The combination of block-level file updates and a nightly backup 
schedule would greatly reduce the opportunity for the type of 
problem I describe to occur. Also, I assume the nightly backup 
occurs when you aren't actively using Yojimbo. I believe this 
explains you success to date but doesn't mean Yojimbo is 
inherently compatible with JungleDisk.


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Re: Backing up Yojimbo to JungleDisk Plus (or Rsync)

[Jeff Berg]

On Apr 9, 2008, at 9:10 PM, Doug Ransom wrote:

Does anyone know how effective  the block-level file updates  
described in the Jungle Disk docs (below) will work with Yojimbo  
database?



Sorry for the delay in replying to this but I didn't want to answer  
until I'd tested a backup. JungleDisk Plus backs up the changes to  my  
Yojimbo database on a nightly basis without any need to shut Yojimbo  
down. I just tested the integrity of the backup this morning and it  
was up-to-date as of yesterday.


Since I got FIOS, JungleDIsk has become my offsite backup destination  
and I'm extrememly pleased--not to mention sleeping better at night.


Rgds!

jab

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