After driving around the town and visiting all the computer shops I could find I only had one jumper they wouldn’t even sell me any, apparently the smaller ones are so rare! Minimum status information is OK or degraded i. However this turned out not to be the case. Feel free to post possible solutions or ideas The cable is shown below. This is a must when maintaining a lot of machines using for instance a serial line console.

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Linux and Hardware RAID: an administrator’s summary

PATA disks and controllers are on their way out and it shows in pricing: Below is information on the old afacli tool Dell also provides some admin tools in binary form. Minimum status information is OK or degraded i.

There are no audible sounds whatsoever. Either no speed difference, or minor victory for RAID1. I would get a total storage capacity of GB and better read and write performance!

The jumpers and connectors are: In addition, robust caching algorithms and hardware based exclusive-or assist make RAID 5 performance exceptional in many different environments.

Results after the modification will be in a separate post entitled ‘Tests: RAID5 adds more overhead due to parity. For the test my user has been set up to login automatically. There’s even a good chance that newer megarajd is still compatible with the array you made on your dead RAID chip.


If you put together the Debian startup times you’ll see that Ubuntu 9. I had some problems with Adaptec SA. Time to dig out the drives.

This site requires JavaScript to be lniux to function correctly, please enable it. The driver is in the main kernel as of 2.

Here is how to setup the array software wise. Remove the controller card and inspect it for damage. There is a GUI tool 3dm2 accessible linud browser used for management and monitoring daemon that configures the RAID, monitors the disk status and sends mail on failure.

LSI Logic MegaRAID® i4 (Series ) Quick Hardware Setup Guide |

I’ve also found that making the drive heavier can help, a bit of thermal paste on the top of the drive and zipties holding an old slot 1 CPU onto the HDD cooler has taken the edge of the noise in my experience.

If you require a further explanation of any item covered in this guide, please refer to the installation instructions on your Driver and Documentation CD. ,inux story short I now have access to the full capacity of the drives. Stay tuned megarais find out if the whole thing was doomed from the start.

The parity data created during the exclusive-or is then written to the last drive in each RAID 3 array. Also, just in case you don’t know, rotation speed is just one thing that impacts drive performance. Best of luck with your experiment ; Thank you for your input.


You are currently megaraidd LQ as a guest. Debian kernel freezes rejected IO to offline devices in case array becomes downgraded ie one disk failed. Each RAID1 raid set then duplicates its data to its other drive. It often works when Ubuntu doesn’t! Same source requirements as the CLI tools. Blue indicates before RAID and red indicates after.

LinuxRaidForAdmins – Debian Wiki

By the time I get to the partitioning tool I’m reminded why I migrated to Debian in the first place. I don’t have linuc fireproof drive just yet. Had that result been the same I would have suspected that too was a network bottleneck but as it appears, the RAID array was able to up the transfer rate just enough for it to be out of the margin of msgaraid. RAID 3 handles data at the block level, not the byte level, so it is ideal for networks that often handle very large files, such as graphic images.