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Replacing an LSI raid disk with MegaCli

If you have identified a failed, or failing disk, it is possible to replace it using the MegaCli utility. In the example below we will cover replacing a failed disk from a raid 5 that has three disks total. The first thing we want to check is the status of our raid 5. [root@raid log]# MegaCli64 […]

How to locate a physical disk in an LSI raid array

The MegaCli command line utility can be used to locate a physical disk in an LSI raid array by blinking the disks activity LED. The blinking will continue until directed to stop. Syntax: MegaCli64 -PdLocate <-start|-stop> -physdrv[<enclosure#>:<disk#>] -a<adapter#> In this example we will locate disk 0 on adapter 0: [root@localhost MegaCli]# ./MegaCli64 -PdLocate -start -physdrv[252:0] […]

How to expand an existing LSI raid array using MegaCli

Warning: You should ALWAYS make a backup of all of your information on the raid array before performing any of these steps. The exact commands to do this vary on your current configuration and number of disks in the raid. Before adding in the disks you need to get a feel for your current setup by […]

How to update the date/time on LSI Raid cards using MegaCli

Setting the date/time on your controller is advised to keep system logs in sync. We can do this with the MegaCli tool using the following syntax: MegaCli64 -AdpSetTime yyyymmdd hh:mm:ss -a<adapter#> yyyy is year in 4 digit format: 2013 mm is month in 2 digit format: 02 dd is day in 2 digit format: 15 […]

What is Cli64?

Cli64 is a (poorly named) proprietary tool developed by Areca that provides reporting AND management functions from userspace. If installed from the ACT repo the binary is located at /usr/local/bin/cli64. The default password for the controller is 0000. [root@localhost ~]# cli64 ? Copyright (c) 2004-2011 Areca, Inc. All Rights Reserved. Areca CLI, Version: 1.86, Arclib: […]

My Areca raid controller is beeping; how do I make it STOP?

*WARNING* – Only continue with this operation after the cause of the alarm has been identified* First we must authenticate to the controller by passing a password, the default is 0000. [root@localhost ~]# cli64 set password=0000 GuiErrMsg: Success. [root@localhost ~]# Now we can mute the beeping! [root@localhost ~]# cli64 sys beeper p=0 GuiErrMsg: Success. [root@localhost […]

Common questions when using Areca Cli64

What is the status of my raid array? You can obtain an overview of the arrays status using the cli64 rsf info command. [root@localhost ~]# cli64 rsf info # Name Disks TotalCap FreeCap DiskChannels State =============================================================================== 1 Raid Set # 00 2 240.0GB 0.0GB 12 Normal =============================================================================== GuiErrMsg: Success. [root@localhost ~]# You can also obtain an overview […]

Disk marked as Foreign or Bad?

Some times when you replace a disk you may find the new disk marked as “Foreign”. The “Foreign” state means the controller has detected a raid signature on this disk from a previous configuration. This will prevent you from using the disk before the foreign state is cleared out. In order to use the disk we […]

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