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Akeeba Backup for Joomla!

#13181 J01 and JPA at the same time

Posted in ‘Akeeba Backup for Joomla! 4 & 5’
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Environment Information

Joomla! version
n/a
PHP version
n/a
Akeeba Backup version
n/a

Latest post by nicholas on Monday, 06 August 2012 05:17 CDT

Monday, 06 August 2012 04:46 CDT

erix
Mandatory information about my setup:

Have I read the related troubleshooter articles above before posting (which pages?)? Yes I do, the two pages
Have I searched the tickets before posting? Yes I do
Have I read the documentation before posting (which pages?)? No
Joomla! version: 2.5.6
PHP version: 5.3.3-7+squeeze13
MySQL version: 5.1.63-0+squeeze1
Host: (optional, but it helps us help you)
Akeeba Backup version: Akeeba Backup Professional 3.6.1 (2012-08-01)

EXTREMELY IMPORTANT: Please attach a ZIP file containing your Akeeba Backup log file in order for us to help you with any backup or restoration issue. If the file is over 2Mb, please upload it on your server and post a link to it.

Description of my issue:

Hello,

My problem is not really a problem but a question for understanding what I see on my screen. I have done a backup of a project site and I saw that my backup xas in two files, the first one named mysitedottdl.20120806-093558.J01 (size 2 147 352 576) and the second one named mysitedottdl.20120806-093558.jpa (size 258 217 889).
My question is why did I have two files instead of one normaly ? I will try to restore my project on a another host to see on what file is my backup but if you can take a moment to explain me the difference it will be great.
Thx for reading and, I hope, for your answer.
Have a nice day
Eric Lamy

 adishatz, erix

www.agerix.fr

Monday, 06 August 2012 04:51 CDT

nicholas
Hello Eric,

There is a setting in Akeeba Backup called "Part size for split archives". It's normally set to 2Gb, lower if the Configuration Wizard detects that your host needs a lower setting. Its purpose is to allow Akeeba Backup to split the backup archive to multiple files. Why is that? PHP on everything except 64-bit Linux has a hard limit of 2Gb - 1 byte per file. Anything larget than that and the file operations fail. Some hosts impose their own file size limits, e.g. Strato.de doesn't allow you to create files larger than 10Mb; if you try, it crashes your script. That's why Akeeba Backup will end up splitting the backup archives into many files.

In your case the backup archive is split in two parts. You need both part files to restore it. Just upload both files to your new host along with Kickstart. Kickstart will list only the .jpa file but it will automatically understand that it's a split archive and restore all parts for you (in fact, it can't extract the archive if any part is missing!). It's the same thing as having split ZIP files or split RAR files (remember those .rar, .r01, .r02, etc files from the old Windows 95 days?).

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

Monday, 06 August 2012 05:16 CDT

erix
Thank you very much Nicholas for your answer and congrats for the time you take for answer !
I understand now what are these two files and how they work.

Have a nice day, hope to see you in JoomlaDay Poland next month ;)

 adishatz, erix

www.agerix.fr

Monday, 06 August 2012 05:17 CDT

nicholas
You're welcome! See you in JoomlaDay Poland :)

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

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