Tag Archives: PRO

CloudBerry Explorer Smart Retrieval for Amazon Glacier

As always we are adding features to make it easier for our customers to use the functionality to offer the most compelling Amazon S3, CloudFront, IAM, and Glacier client on Windows platform.
Amazon Glacier, a secure, reliable and extremely low-cost storage service designed for data archiving and backup. In order to keep costs low, Amazon Glacier is optimized for data that is infrequently accessed and for which retrieval times of several hours are suitable. With Amazon Glacier, you can reliably store large or small amounts of data for as little as $0.01 per gigabyte per month.

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Introducing CloudBerry Explorer PRO for OpenStack and Rackspace

It has been just a few months since we introduced CloudBerry Explorer freeware for OpenStack and now we are proud to announce CloudBerry Explorer PRO for OpenStack Object Storage.
CloudBerry Explorer PRO for OpenStack supports all the features of the freeware version and offers some advanced functionality Continue reading

How to Combine Chunks FAQ

CloudBerry S3 Backup is a powerful Windows program that automates backup and restore processes to Amazon S3 cloud storage. One of the features that cause some confusion among our users is an ability to break larger files down into chunks. It is designed to make data transfer faster, more efficient and more reliable. However, the main drawback is that the files remain chunked on Amazon S3 and you need CloudBerry Backup to get those files back. In the post, we are going to answer some of the common questions and shed some lights on the chunking implementation details. Continue reading

How to Handle Parallel Data Upload With CloudBerry S3 Explorer Pro

Note: this post applies to CloudBerry Explorer PRO 1.6.2 and later.

CloudBerry Explorer PRO 1.6 for Amazon S3 that came out about two weeks ago had one drawback. It was not easy for an average user to configure the number of threads used to transfer data to S3 easily. You had to edit the configuration file as explained in our previous post.

CloudBerry Lab team was quick to recognize the problem and make the fix. Now you can control the number of threads in the GUI. Just go to Tools| Options| Connection tab. You can change the Queue thread count to whatever value work for you. The default is 5 (was 2 in the previous release). Our test and our customers’ tests indicated that this value is about right. One of the customers told us that the transfer that used to take more than 3 days now takes less than 24 hours!



If you came to this post by chance you should know that CloudBerry S3 Explorer PRO is a Windows program that helps to manage Amazon S3 storage and CloudFront.

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Speed up Data Transfer With CloudBerry S3 Explorer pro 1.6

Note: this post applies to CloudBerry Explorer 1.6 PRO and later.

CloudBerry S3 Explorer PRO is a feature-rich Windows client for Amazon S3. However, CloudBerry Lab is striving to make the product better and better. With release 1.6 we added so more exciting capabilities that will improve the productivity. In this particular post, we will talk about multithreaded data transfer in details.

Why should I care about the multithreaded transfer?

CloudBerry Explorer PRO now features multithreaded data transfer. Why should you care about it? Well, with multithreaded data transfer you don’t have to wait for the first file to finish before you can start the next one in the queue. Now you can upload multiple files in parallel. Besides, it helps you utilize your network bandwidth more efficiently and as a result, your files uploaded or downloaded faster.

Other copy enhancements

There are a few more improvements when it comes to copying files. First, should the file fail to copy for some reason, you can now try to copy it again using Retry command from context menu. As you can see you can also stop individual files from copying using Cancel command.


What’s more, you can try to copy all failed tasks again using Restart Failed Tasks button.

Another nice feature is that the copy queue can now survive program restarts. Let’s say you need to reboot your computer. You can safely close CloudBerry Explorer and shut down your system even though your copy process is not completed yet. When you open CloudBerry Explorer again you can start exactly where you left off.


Currently, there is no control option in the GUI that lets you specify how many threads to use. By default, it uses 2 threads. if you have more threads you can upload even faster!
We are going to make a GUI option in the next release and for now you can increase the number of threads by going to settings.list (C: Documents and SettingsLocal SettingsApplication DataCloudBerry S3 Explorer PRO) and change ThreadCount>2ThreadCount> to at least 5 and reopen the console.


We hope with multithreaded data transfer and other copy queue enhancements CloudBerry Explorer will become the most compelling Amazon S3 client for Windows platform and you will prefer it over other S3 clients.

If you came to this post by chance you should know that CloudBerry S3 Explorer PRO is a Windows program that helps to manage Amazon S3 storage and CloudFront.

CloudBerry Explorer PRO for Amazon S3

About two weeks ago CloudBerry Lab started the first beta of CloudBerry Explorer PRO for Amazon S3. In the PRO version of CloudBerry Explorer, we are going to offer some advanced functionality on top of basic functionality offered in our freeware version.
The features of the PRO edition are Compression, Encryption, Chucking and FTP support. In this post, we will talk about the first three and in our next articlewe will explain how FTP support works.

Table of contents

    Compression and encryption

    Compression, when used properly, can significantly lower your storage and transfer bills. We use industry standard ZIP compression format. To enable compression just go to Tools | Options | Advanced and click the appropriate checkbox.
    For encryption, we offer the industry-standard algorithm and it can further protect your data stored on your S3 account from unauthorized access.


    Chunking is a configuration option that breaks down your large files into the smaller pieces to speed up transfer and make it more reliable. This is helpful when you upload large files such as virtual machine images that can weigh up to 20 GB or even more. With chunking, you will break it down into several smaller files and upload each separately. In this case, if for some reason transfer fails you will only have to re-upload several failed pieces and not the entire file.
    By default, the chunk is ~10MB and you can configure this option as you see fit. You can also use chunk transparency option. When the option is “on” the file broken down into chunks will look like a single file on Amazon S3 storage.
    Note: if you use chunking you need CloudBerry Explorer to download them back and combine them again to a single file. A chunked file is not combined back on S3 storage and resides there as a number of small files.
    Note 2: currently there is a bug in the beta version that doesn’t allow you to use chunking when MD5 checksum is on.
    I turned 'Use chunks' on, intentionally set Chunk size to 100KB and copied 1 MB Picture 005.jpg file to S3. Then I turned Chunk transparency off. This is how the file looks like on S3 bucket.
    If I turn Chunk transparency on you will see only one file even though physically there are 13 files stored.

    Other benefits

    Among other benefits of CloudBerry Explorer for Amazon S3 PRO edition are extended support and no expiration date.


    With compression, encryption and chunking CloudBerry Explorer is becoming an even more compelling product for professional Amazon S3 users.

    Note: Beta 1 will expire on July 1, 2009. Please don’t use beta version for production purposes. Prices for PRO version will be announced later when we release the product to the market.

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