It will fall back to 1. These settings do not affect the read-ahead policy. Thank-you this is very useful. The procedure to change the firmware is described in http: HighPoint is finally the first to do it. Before reading this page, I ordered a Rocket to enable me to finally populate all the bays in my 5in3 drive cages – it seems that I have made a good choice there. The array-info tool can extract the RAID status for cciss devices.

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I also included links to online retailers because some of these controllers are not that easy to find online.

After the instalation, system stops the ljnux process in “hostname: I added it for you, please go slow and test each stage, let me know, stop if you are not sure of anything.

Having trouble installing a piece of hardware? The script can be called with –nagios parameter. I cannot find much information on how the J cage is architectured. Performance of the array is good.

The disk drive identified as! However LSI provide megaclia proprietary management command line utility which is rather hard to use.

Linux and Hardware RAID: an administrator’s summary

There is also an OpenSolaris driver issue that produces frequent hesitations in the data flow, not to mention the fact that OpenSolaris doesn’t support this controller’s NCQ. BIOS upgrade from a Linux system. Same source requirements as the CLI tools. Now I wanted to linyx to Ubuntu If megasasctl doesn’t work for you, you will have to use the proprietary cli utility from LSI: However, they are all 1 lane cards.

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Our RR64x series, for example, support PM capable enclosures and chassis. When attaching the array to the E controller the disks are recognized and the controller BIOS even reports an legacy raid on the disks.

From 32 to 2 ports: Ideal SATA/SAS Controllers for ZFS & Linux MD RAID

Assuming, you have valid support, your best bet is to reach out to RH support. Driver not included at this point.

Some combinations do work, but you are going to spend a lot of time researching that. And, have you looked at and performed steps as per this guide: The first drive dropped during the initial sync, the second while I was filling up the array with data this turned out to be a bad drive and was replacedand the third during another resync.

LSI SAS RAID Controller/ HBA Information

Visit the following links: Will it play well with the onboard raid drives or do they need to ALL be on the card or on the board as opposed to some on each? You llsisas2008 need to find another motherboard to use to flash the controller card. I just want to know if I can connect 4 drives to one port, two drives to each port, or only one drive to each port.


You need to make sure SCSI generic device driver is loaded and will be loaded at boot. I defaulted it to Zero but the batch file will prompt you to check stage 1’s output file to see what controller was issued what. Powered by Trac 1. Thanks for the excellent writeup!

Where is the best place to purchase the Adaptec Series 7 cards? I got updated firmware from http: Lots of bandwidth per port. Thanks vlad, I have updated the blog entry.

Linux Power User Bundle.