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Old 03-13-2015, 10:05 AM   #1
jeremy
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The future of Linux storage


Quote:
At the Linux Foundation's new Vault show, it's all about file systems and storage. You might think that there's nothing new to say about either topic, but you'd be wrong.

Storage technology has come a long way from the days of, as Linus Torvalds put it, "nasty platters of spinning rust" and Linux has had to keep up. In recent years, for example, flash memory has arrived as enterprise server primary storage and persistent memory is bringing us storage that works at DRAM speeds. At the same time, Big Data, cloud computing, and containers are all bringing new use cases to Linux.
To deal with this, Linux developers are both expanding their existing file and storage programs and working on new ones.

Btrfs
For instance, Chris Mason, a Facebook software engineer and one of the Btrfs (pronounced Butter FS) maintainers, explained how Facebook uses this file system. Btrfs has many advantages as a file system such as the ability to handle both numerous small files and single files as large as 16 exabytes; baked in RAID; built-in file-system compression; and integrated multi-storage device support.

Ceph FS
Ceph provides a distributed object store and file system which, in turn, relies on a resilient and scalable storage model (RADOS) using clusters of commodity hardware. Along with the RADOS block device (RBD), and the RADOS object gateway (RGW), Ceph provides a POSIX file-system interface -- Ceph FS. While RBD and RGW have been in use for production workloads for some time, efforts to make Ceph FS ready for production are now underway.

Red Hat, after acquiring Inktank, Ceph's parent company, in 2014 has been working hard on making CephFS production ready. For better or worse, Spray said, "Some people are already using it in production; we're terrified of this. It's really not ready yet." Still, Spray added, that this "is a mixed blessing because while it's a bit scary, we get really useful feedback and testing from those users."
More at ZDNet...

Are any LQ members using Btrfs or Ceph in production?

--jeremy
 
Old 03-13-2015, 10:30 AM   #2
veerain
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I would only use Btrfs if it is annouced stable.
 
Old 03-17-2015, 12:47 AM   #3
TobiSGD
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I use btrfs on some of my SSDs for quite a while now without a single problem. When I have some spare time I will migrate the rest of my disks to it.
 
  


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