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Describe small tips in general FlexRAID’s RAID-F usage.

Starting FlexRAID at boot (Ubuntu)

1. Go to ~/.config/autostart 2. Create a file called FlexRAID.sh and open it 3. Type these 2 lines: cd /var/lib/flexraid ./FlexRAID & (note you might need to change the first line to whatever your install directory is) 4. Save & close, make the file executable 5. Open the Startup Applications window, hit add, select your  Full Article…

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Benchmarking individual drives

One of the aspects of RAID’ing drives of different makes, models, and performance is that your slowest drive will be your bottleneck. To aid in identifying your slowest drive, below is a benchmark script. Download: http://download.openegg.org/temp/Simple-IO-Test.zip There are two example test scripts. The first one benchmarks each drive at time and the other does it  Full Article…

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Real-Time RAID Dos and Don’ts

Do: When using applications like torrent and the likes, do enable the option to preallocate the files. This helps create less fragmentation within the FlexRAID filesystem and increases performance and resource utilization. Also, when copying files, use a program that pre-allocate the file to be copied. Some programs fail to pre-allocate and end up creating  Full Article…

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WARNING: S.M.A.R.T monitoring on Samsung F4 EcoGreen drives (HD155UI, HD204UI)

*** Using FlexRAID’s S.M.A.R.T drive monitoring feature with Samsung F4 EcoGreen drives (HD155UI, HD204UI and HD204UI/JP) may result in data loss *** This is not FlexRAID specific and you must update the firmware of the drives listed above to avoid the issue. Read here: http://sourceforge.net/apps/trac/smartmontools/wiki/SamsungF4EGBadBlocks Firmware updates (I have decided to host these): Samsung F4EG  Full Article…

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Dealing with Verify failures

If you have not done so already, you need to ensure that the FlexRAID.exe process is excluded from your Anti-Virus and other file protection tools. These tools will often interfere with FlexRAID changing the data it is processing in memory. So, if you find yourself getting a lot of Validate and Verify errors and you  Full Article…

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How to create a CruiseControl RAID config using existing parity data

This scenario is valid only if: – You have not re-installed your OS – You don’t have a copy of your configuration database – The copy of your configuration that is on your PPU is somehow missing Otherwise, please follow this guide instead (minus the restore section): http://wiki.flexraid.com/2012/03/24/how-do-i-restore-if-i-lose-both-my-os-drive-and-a-data-drive-and-dont-have-backups-of-my-raid-config/ This guide is also helpful: http://wiki.flexraid.com/2012/03/25/how-do-i-add-my-drive-back-to-the-pool-after-re-installing-my-os/ To  Full Article…

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