unRAID 5.0 Final on our doorstep – as is native 64-bit.

By | February 7, 2013

I’m not going to spend any time re-writing what Tom over at Lime Technology has put out about the much awaited unRAID 5.0 Final release.  There was a recent poll about how to handle it and the overwhelming majority screamed, “JUST RELEASE IT ALREADY!”  Well, I wasn’t on that bandwagon, but it does appear after another short wait to try and hash out the slow write issues some users are having, RC11 will be the last RC before the final.  Continue on to read Tom’s plan for 5.0 and the future of 64-bit unRAID…

“As you have probably seen, I went ahead and released another “rc” -rc11.  Hopefully this will be the last -rc.  One of the changes is the inclusion of a boot menu item that will let you boot the linux kernel limiting it’s memory to 4GB.  This is a “workaround” for the “slow-write” problem seen on certain systems.

While the results of the poll indicate that we should just release 5.0 as-is and address this issue in 5.1, I really don’t want to do that because there is only going to be one chance for me to produce a “final” that everyone from 4.7 can move to, and I’d like it to not have this (fairly major) workaround.

At least I need to understand the cause of this problem.  To this end, we have set up a test system where I can figure out what’s going on.  The plan is to give this a week.  Hopefully I can solve this problem and release a fully-functional 5.0 with any amount of RAM.

Moving forward, work has already started on a fully 64-bit unRaid OS.  Highlights:
a) Based on slackware64-14.0
b) latest netatalk (3.x)
c) latest samba (4.x)
d) integration of lighttpd+php with emhttp

In addition, there is a very cool feature that will probably be released prior to a 64-bit kernel called “cache pool”.  This feature allows you to assign multiple hard drives to the “cache” using the btrfs file system.  Among other things, this will provide fault tolerance for cache-only shares and for files not yet moved to the array.  This will also provide a great way to utilize SSD’s in an unRaid server since btrfs has SSD-aware features.”

I’m still on RC10 and it’s been fine.  At this point, I’m really only looking forward to the 64-bit kernel.  The btrfs for cache drives sounds interesting though…

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