wikiQuerying RAID Status
This article should supply an overview of how the RAID status can be queried for the various RAID controllers that are used by Thomas-Krenn.AG for your server products. This information is exceptionally important for the undisrupted operation of a server system and should be requested periodically.
Furthermore, the following commands are very appropriate for deployment in scripts that will be periodically executed to notify server administrators by email, for example, when there are problems with the status of the RAID arrays.
3ware
For monitoring the RAID status of a 3ware RAID controller, the best solution is to use the 3ware command line interface (tw_cli).
Examples of Commands Requesting Information
Listing all obstructed 3ware RAID controllers:
test:~# tw_cli show Ctl Model (V)Ports Drives Units NotOpt RRate VRate BBU ------------------------------------------------------------------------ c0 9550SXU-4LP 4 2 1 0 1 1 -
Listing all information regarding Controller c0:
test:~# tw_cli /c0 show Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy ------------------------------------------------------------------------------ u0 RAID-1 OK - - - 74.4951 ON OFF Port Status Unit Size Blocks Serial --------------------------------------------------------------- p0 NOT-PRESENT - - - - p1 NOT-PRESENT - - - - p2 OK u0 74.53 GB 156301488 9QZ07NP2 p3 OK u0 74.53 GB 156301488 9QZ08DS2
Listing all information regarding Unit u0 on Controller c0:
test:~# tw_cli /c0/u0 show Unit UnitType Status %RCmpl %V/I/M Port Stripe Size(GB) ------------------------------------------------------------------------ u0 RAID-1 OK - - - - 74.4951 u0-0 DISK OK - - p3 - 74.4951 u0-1 DISK OK - - p2 - 74.4951
This last item is probably most suitable for monitoring the RAID status of individual units.
Command Help
You can find help regarding which commands are available from the command line interface through the command help
Examples:
tw_cli help tw_cli /c0 help tw_cli /c0/u0 help
Downloading tw_cli
If the CLI has not been installed on the system, it can be downloaded from the Thomas-Krenn.AG Download Site.
tw_cli Documentation
The documentation for the CLI can also be found at the Thomas-Krenn.AG Download Site:
Further Information
Information regarding rebuilding units connected to 3ware RAID controllers can be found in the following article:
Rebuilding with 3ware Controllers under Linux
Information about how the consistency of RAID arrays controlled by 3ware controllers can be tested can be found in the section referred to in the following article:
Checking the Consistency of RAID Arrays#3ware RAID Controllers
Information regarding the analysis of units connected to 3ware RAID controllers can be found in the following article:
Analyzing 3ware RAID Controllers
Additional useful articles can be found in the following categories:
Adaptec
For monitoring the RAID status of an Adaptec RAID controller, the best solution is to use the Adaptec command line interface (ARCCONF).
Examples of Commands Requesting Information
Listing all information regarding the controller with the ID 1
ARCCONF GETCONFIG 1
Listing all information regarding the settings of the controller with the ID 1
ARCCONF GETCONFIG 1 AD
Listing all information regarding the logical drives connected to the controller with the ID 1
ARCCONF GETCONFIG 1 LD
Listing all information regarding the physical devices connected to the controller with the ID 1
ARCCONF GETCONFIG 1 PD
Command Help
You can find help regarding which commands are available from the command line utility by entering the ARCCONF command (without additional commands or parameters). You can get help regarding the individual commands by entering the corresponding command and pressing the Enter key.
Examples:
ARCCONF ARCCONF GETCONFIG
Downloading ARCCONF
The command line utility is a component of the "ASM (Adaptec Storage Manager)" package. If the command line utility has not been installed on the system, it can be downloaded from the Thomas-Krenn.AG Download Site.
ASM Windows 32-bit v6.10.18359
ASM Windows 64-bit v6.10.18359
ARCCONF Documentation
The documentation for the command line utility can be found on the Adaptec home page:
Command Line Utility User's Guide
Further Information
The following wiki articles will supply additional information regarding the operation of Adaptec RAID controllers:
- Adaptec RAID Maintenance Best Practices
- Analyzing Adaptec RAID Controllers
- Correcting Hard Disk Failures with Adaptec RAID Controllers using ARCCONF
- Checking the Consistency of RAID Arrays#Adaptec RAID Controllers
Areca
For monitoring the RAID status of an Areca RAID Controller, the best solution is to use the Areca command line interface cli32, or cli64 for 64-bit systems.
Examples of Commands Requesting Information
Listing all information regarding the RAID set
cli32 rsf info
Listing all information regarding the volume set
cli32 vsf info
Listing detailed information regarding the first volume set
cli32 vsf info vol=1
Listing all information regarding the physical disks
cli32 disk info
Listing detailed information regarding the first physical disk
cli32 disk info drv=1
Command Help
You can get help regarding the individual commands by adding the -h or -help flags to the respective command.
Examples:
cli32 rsf -h cli32 vsf -h
The following command will supply a list of all possible commands:
cli32 main
Downloading cli32 or cli64
If the CLI has not yet been installed on the system, it can be downloaded from the Areca Support Site:
CLI Documentation
The documentation for the command line interface can also be found on the home page of the Areca support site:
Command Line Interface User's Guide
Further Information
Information about how the consistency of RAID arrays controlled by Areca controllers can be tested can be found in the section referred to in the following article:
Checking the Consistency of RAID Arrays#Areca RAID Controllers
Information regarding the analysis of units connected to Areca RAID controllers can be found in the following article:
Analyzing Areca RAID Controllers
LSI
To check LSI based RAIDs you are advised to use LSI StorCLI.
