Building an NFS Home Directory Server for the NTG Lab
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@anonymous said:
Where will this thing be ready?
Which thing? Do you mean "logins for everyone"?
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Oops, posting as my news account.
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The lab is up and running. I'm using it full time. But it isn't publicly available yet because it needs to ship up to Toronto.
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OpenSuse Leap server with the advanced BtrFS file system
I thought you used XFS?
Edit: NM I'm a moron.
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@scottalanmiller said:
We now have an OpenSuse Leap server with the advanced BtrFS file system sitting on Scale's RAIN storage replication technology with high availability failover ready to go to feed shared files to our environment.
Having almost no understanding of the technical gargon used in this post (that's on me, not the OP), you mention BtrFS here, but poo poo it above. I'm not sure even what it really means - but why OK in this case and not the above fileserver VM case?
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@Dashrender said:
@scottalanmiller said:
We now have an OpenSuse Leap server with the advanced BtrFS file system sitting on Scale's RAIN storage replication technology with high availability failover ready to go to feed shared files to our environment.
Having almost no understanding of the technical gargon used in this post (that's on me, not the OP), you mention BtrFS here, but poo poo it above. I'm not sure even what it really means - but why OK in this case and not the above fileserver VM case?
I'm assuming he did it that way because XFS is more stable and you have the advantages of LVM with the OS plus journaling. BTRFS for storage because of RAID and pooling.
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@Dashrender said:
@scottalanmiller said:
We now have an OpenSuse Leap server with the advanced BtrFS file system sitting on Scale's RAIN storage replication technology with high availability failover ready to go to feed shared files to our environment.
Having almost no understanding of the technical gargon used in this post (that's on me, not the OP), you mention BtrFS here, but poo poo it above. I'm not sure even what it really means - but why OK in this case and not the above fileserver VM case?
BtrFS, like ZFS, is built for large scale storage and is not meant to work well at traditional file system sizes (like 4 - 40GB.) The OS here is well under 14GB, having BtrFS there would be inefficient and silly. But the data drive is 400GB, so BtrFS there.
For the OS, XFS for the ultimate in mature, stable, and performant usage.
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OK that makes sense - thanks.
Where did you choose the format for the data partition? I see your mention of the OS (specifically you mention changing it from default), but not where you choose one for the data partition.
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@Dashrender said:
OK that makes sense - thanks.
Where did you choose the format for the data partition? I see your mention of the OS (specifically you mention changing it from default), but not where you choose one for the data partition.
I missed that too. It's in the screenshot for the expert petitioner summary.
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Couldn't you do the same thing with CentOS? What made you decide to use OpenSuse Leap? Also, how do I setup my other servers to mount this /home and not the local /home?
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The benefit of Btrfs allows users to take advantage of Snapper. Users can recover the previous status of the system using snapshots. Snapper will automatically create hourly snapshots of the system, as well as pre- and post-snapshots for YaST and zypper transactions. Also you can boot right into a snapshot to recover from corruption of important files on the system (like bash). A powerful system and a powerful tool.
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@anonymous said:
Couldn't you do the same thing with CentOS? What made you decide to use OpenSuse Leap? Also, how do I setup my other servers to mount this /home and not the local /home?
You could. Scott is a big fan of OpenSuse.
I think he's saving that for another post, but essentially you just install the nfs package and then edit /etc/fstab to mount /home from the nfs server.
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@anonymous said:
The benefit of Btrfs allows users to take advantage of Snapper. Users can recover the previous status of the system using snapshots. Snapper will automatically create hourly snapshots of the system, as well as pre- and post-snapshots for YaST and zypper transactions. Also you can boot right into a snapshot to recover from corruption of important files on the system (like bash). A powerful system and a powerful tool.
booting from a snap, that's pretty cool.
What does YaST stand for? I'm to lazy for Google.
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@Dashrender said:
OK that makes sense - thanks.
Where did you choose the format for the data partition? I see your mention of the OS (specifically you mention changing it from default), but not where you choose one for the data partition.
Right here...
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@anonymous said:
Couldn't you do the same thing with CentOS? What made you decide to use OpenSuse Leap? Also, how do I setup my other servers to mount this /home and not the local /home?
Yes, you could very easily do this with any UNIX as NFS is essentially universal. It is the native file server protocol of the UNIX world (originally from SunOS, I believe.) So good choices include CentOS, Suse, Ubuntu, Debian, Arch, FreeBSD, Dragonfly, AIX, Solaris, OpenIndiana, NetBSD, etc.
OpenSuse is my "go to" choice for storage appliances because they, more than any other Linux distro, focus on storage and cluster (we only care about the former here) capabilities and tend to run a few years ahead of their competitors in features (they were the first to use ReiserFS, long ago, first with BtrFS, etc.) BtrFS has long been stable and default on Suse, still not so on any other distro.
OpenSuse Leap was chosen over Tumbleweed because for storage we want long term stability rather than the bleeding edge features. Leap is the long term support release of OpenSuse (it is a mirror copy of SLES, the Suse's world's CentOS to RHEL relationship) whereas OpenSuse Tumbleweed is a rolling release not unlike Fedora.
And lastly, I'm working on the directions for how to do that today. There are several ways to do it, like I showed one in my example above, but for solid /home connections we want to do something special.
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@anonymous said:
The benefit of Btrfs allows users to take advantage of Snapper. Users can recover the previous status of the system using snapshots. Snapper will automatically create hourly snapshots of the system, as well as pre- and post-snapshots for YaST and zypper transactions. Also you can boot right into a snapshot to recover from corruption of important files on the system (like bash). A powerful system and a powerful tool.
BtrFS: Think of it as native ZFS competitor for Linux (which is what it is.) Ten years newer than ZFS and not a port from another OS and no need for licensing work arounds like using FUSE. BtrFS is under heavy development and is generally considered to be the future of large capacity filesystems on Linux. Like ZFS it has volume management built in (no need for LVM) and software RAID.
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@Dashrender said:
What does YaST stand for? I'm to lazy for Google.
YaST: Yet another Setup Tool
YaST is one of the Suse claims to fame. Handles nearly everything and has been an integral part of the OS since 1996 making it TWENTY this year!!
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YAST:
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@scottalanmiller I used Suse back in the 90's. I think Yast had a GUI interface as well. Do you know if it still does?
