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Rebuilding array on 3ware 9690SA-8I

TL;DR version RAID10 array working fine Reboot server as part of maintenance Array inoperable (no access whatsoever) Controller logs say a single drive is bad Remove drive & test – no bad sectors found Err on the side of caution, replace drive with known good one Controller won’t rebuild array onto new drive Even with  Full Article…

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3ware RAID – one unit INOPERABLE

After a reboot (to upgrade the kernel), one of the spare HDD is inoperable… Before I proceed with a fix, I wanted a second opinion. This is what I think I need to do: CODE: SELECT ALL # tw_cli maint deleteunit c0 u2 # tw_cli maint createunit c0 p0 rspare The current state of the system  Full Article…

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Error: “aacraid: Host adapter abort request”

AACRAID based controllers have an underlying timeout/recovery cycle that is 35 seconds long. The default in some SCSI subsystems was 60 seconds in the past, but is now standardized at 30 seconds which results in an interference pattern between the controller and the Linux SCSI subsystem. The alternate workaround is for the user to adjust the timeout  Full Article…

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kernel: aacraid: Host adapter abort request (0,0,0,0)

ervers are running Adaptec 5405 RAID cards with 2×300 GB SAS disks. Everytime in /var/log/messages I get information about SCSI hang: kernel: aacraid: Host adapter abort request (0,0,0,0) kernel: aacraid: Host adapter reset request. SCSI hang ? kernel: aacraid: SCSI bus appears hung I reviewed controller logs, and I saw that each time the controller  Full Article…

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AACRAID based controllers timing out / aborting / SCSI hang

We’ve been lately starting to use more Adaptec RAID controllers rather than 3ware RAID controllers. 3ware has been nothing but trouble for us, dropping hard drives, even RAID5 arrays are running slower than a regular hard drive with no RAID. Our latest issue was a server just simply having a Kernel Panic when using high  Full Article…

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Replace failed disk in MegaRAID array

Install MegaCli software You can download the latest release from LSI here: http://www.lsi.com/support/Pages/Download-Search.aspx . Search for “megacli”. There is also an excellent driver repository here: http://www.thomas-krenn.com/de/download.html (german language). To install the software, unpack the zip file and run the install command according to your OS. For a Linux system, the command is usually # rpm -Uhv ./MegaCLI/MegaCli_Linux/MegaCli-8.05.71-1.noarch.rpm Preparing… ###########################################  Full Article…

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LSI MegaRAID – megacli

I wanted to verify that the RAID controller would start an automatic rebuild.  I popped out one of the drives and the very loud alarm started screaming.  I waited a little bit and put the drive back in.  The alarm continued and the array did not start rebuilding.  It turns out that the controller has  Full Article…

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Megaraid SAS Raid Controller

I have about half a dozen servers all running the Intel RS2BL080 raid controller on Oneiric server AMD64. It works fine using the megaraid_sas kernel module but when I try to use megacli to probe the card, it tells me that there are no raid controllers available. Intel don’t have Ubuntu as a supported OS, so they couldn’t help me.  Full Article…

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How to read the SMART values of the drive in RAID

The use of smartmontools enables direct access to the physical drive behind the controller, eg. for the first drive. First of all, the device id needs to be determined with the megacli tool: # megacli -pdlist -a0| grep ‘Device Id’ Device Id: 4 Device Id: 5 This can now be specified as a “megaraid” option, for example:  Full Article…

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How to read the status of the hardware-based RAID

To read the status of the LSI RAID Controller, the LSI megacli command-line tool needs to be installed. This is already pre-installed in the Rescue System. The status of the RAID may be obtained by using the following command (show all logical devices on all controllers):   megacli -LDInfo -Lall -Aall Example RAID 1: Adapter  Full Article…

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MegaCLI Error Messages

0x00 Command completed successfully 0x01 Invalid command 0x02 DCMD opcode is invalid 0x03 Input parameters are invalid 0x04 Invalid sequence number 0x05 Abort isn’t possible for the requested command 0x06 Application ‘host’ code not found0x07 Application already in use – try later0x08 Application not initialized0x09 Given array index is invalid0x0a Unable to add missing drive to array, as row has no empty slots0x0b Some of the CFG resources conflict with each other or  Full Article…

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SUPERMICRO AOC-USAS-H8iR SAS/SATA RAID Controller, 8 ports, 3 Gb/s, Levels 0/1/5/6/10/50/60, w/ iButton, 256MB cache, No BBU, UIO

Supermicro AOC-USAS-H8iR UIO (Universal I/O) SAS Internal RAID Adapter Features: LSISAS 1078 8-port PCI-E SAS controller 8-port (8 internal) 3Gb/s per port Supports RAID 0, 1, 5, 6, 10, 50, 60 On board hardware IO Processor 256MB 667MHz DDR2 on-card cache Advanced array configuration and management utilities Automatically negotiates PCI-E link widths Power management support  Full Article…

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SUPERMICRO AOC-USAS-H8iR SAS/SATA RAID .

  Products   Accessories   [ AOC-USAS-H8iR ]  Add-on Card Supermicro 3Gb/s Eight-Port SAS Internal RAID AdapterThe Supermicro UIO MegaRAID AOC-SAS-H8iR features 8 internal SAS connectors for high-performance storage connectivity. This RAID card is built on the LSI Logic SAS IC technology and proven MegaRAID technology. It addresses the growing demand for increased data throughput and scalability requirement across the enterprise-class server  Full Article…

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