Tag: RAID

freebsd

FreeBSD Check The Health of Adaptec RAID Array

Find Out Information About Your RAID Device Type the following commands:# dmesg | grep -i RAIDSample Outputs: aac0: mem 0xe8000000-0xe81fffff irq 16 at device 0.0 on pci6 aacd0: on aac0 # pciconf -l | grep -i aacOutput: aac0@pci0:6:0:0: class=0x010400 card=0x02d19005 chip=0x02859005 rev=0x09 hdr=0x00 FreeBSD arcconf arcconf is command Line Interface for the Adaptec SCSI RAID …

CentOS, CloudLinux, CWP

Linux RAID with mdadm Cheat Sheet

RAID Levels RAID 0 Stri­pes data evenly across two or more disks. RAID 1 Mirr­ors data on two or more disks. RAID 2 Rarely used, Bit-level striping with Hamming code for error correc­tion. RAID 3 Rarely used, byte-level striping with a dedicated parity. RAID 4 Block-­level striping with dedi­cated parity. RAID 5 Block-­level striping with …

CentOS, CloudLinux, cPanel, Linux

OVH server not booting with centos7.6 kernel

One of our client was facing issue with OVH kernel. After rebooting the server it’s not coming up with normal kernel. I have checked the server using IPMI console and found below error message. A start job is running for dev-md2.device First bring the server online with any of the working kernel. Once the server …

CentOS, RAID

Dell – PERC/LSI MegaCLI – How to install

Step 1: Seems like LSI was taken over by another company. Finding it was a bit harder, but here is the latest version of the software. (as at 14 October 2015) Step 2: Copy the file to an appropriate location on your Linux machine. In this case, we will use /var/tmp/ Step 3: Execute the following commands (in …

CentOS

How to install MegaCli on Centos7

MegaCli introduced by LSI is a command line administration of LSI MegaRaid controllers .With megacli we can create physical raids, gather info about raids and monitor raids.MegaCLI provided by LSI is the most cryptic command line utility in existence.Dell PowerEdge servers uses the LSI MegaRAID controllers Installation Download and Install MegaCli and other supportive toolsInside …