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HPACUCLI stands for HP Array Configuration Utility CLI.
As the name suggests, this utility is for HP servers.
Hpacucli is used to create, delete and repair the logical and physical drives on the smart array controllers in HP servers.
To use hpacucli, download and install the latest version of hpacucli rpm from the HP website on your Linux server. 1. Two ways to execute the command
When you type the command hpacucli, it will display a “=>” prompt as shown below where you can enter all the hpacucli commands explained in the article.
Or, if you don’t want to get to the hpacucli prompt, you can just enter the following directly in the Linux prompt. The following is exactly same as the above.
2. Display Controller and Disk Status
To display the detailed status of the controller and the disk status, execute the following command.
In this example, as shown in the above output, we have total 7 physical drives. The first RAID group RAID 1 contains 2 physical drives and the remaining physical drives are not assigned to any of the logical drives.
3. View Controller Status
To display the status of just the controller, do the following. In this example, the controller is working perfectly without any issues.
4. View Drive Status
To display the status of the physical drive, do the following. In this example, we have two 146GB physical drives, and 5 300GB physical drives, and all are in perfect condition.
5. View Individual Drive Status
To display the detail status of a specific physical drive, do the following.
In this example, we like to know the status of “pd” (physical disk) in slot 0. The specific disk is “2I:1:6”, which we figured it out from the output of the previous command.
As shown in the output below, this displays the Serial Number, Make, Model, Size and Fireware version of this specific disk. This can be very helpful during troubleshooting.
6. View All Logical Drives
The following command will display all available logical drives on the system. As shown in the output below, we currently have only one logical drive in RAID 1 with total size of around 136GB.
7. Create New RAID 0 Logical Drive
Execute the following command to create a new logical drive using RAID 0 option.
The above command creates a logical drive with the physical drives 1I:1:3 on RAID 0 configuration in slot 0.
8. Create New RAID 1 Logical Drive
Execute the following command to create a new logical drive using RAID 1 option.
The above command creates a logical drive with the two physical drives 1I:1:3 and 1I:1:4 on RAID 1 configuration in slot 0.
9. Create New RAID 5 Logical Drive
Execute the following command to create a new logical drive using RAID 5 option.
The above command creates a logical drive with the five physical drives on RAID 5 configuration in slot 0.
Once these logical drives are created, you should see the disks from the fdisk and you can format it from there and start using it.
After you create a logical drive, execute the following command to verify that the LD got created. In this example, it shows that the RAID 5 logical drive got created successfully.
10. Rescan for New Devices
If you’ve added new physical hard disk, they won’t automatically show-up immediately. You have to scan for new devices as shown below.
11. View Detailed Logical Drive Status
To display the detailed status of the logical drive, do the following:
The above shows the RAID type, the disk name assigned to the logical drive, and other information about the logical drive number 2.
12. Delete Logical Drive
To delete a logical drive with the number 2 use the below command.
13. Add New Physical Drive to Logical Volume
To add the new drives to existing logical volume, do the following.
In this example, we are adding two additional drives specified above to the logical volume number 2.
14. Add Spare Disks
To add the spare disks to arrays that can be used in case of disk failures on one of the logical drives, do the following:
In this example, we are adding two spare disks to the array.
15. Enable or Disable Cache
The below commands enable or disable cache for the entire slot.
16. Erase Physical Drive
Execute the following command to erase a physical drive in array B on slot 0.
17. Blink Physical Disk LED
To blink the LED on the physical drives for the logical drive 2, do the following. This will make the LEDs blink on all the physical drives that belongs to logical drive 2.
Once you know which drive belongs to logical drive 2, turn the LED blinking off as shown below.
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In my lab I’m using a Proliant DL380 G5 filled with disk as a storage server, running some VSA on top of the volume I created  and formatted with a vmfs filesystem.
I was running into performance issues, storage was performing poorly, and I needed to check for usual problems like for example cache battery status, since on a P400 raid card, write back is by default disabled if the battery has a low charge, thus lowering performances to a minimum.
My problem however was, I was running on top of this server all my iscsi shared storage, so it was not so easy to poweroff the server to open up the raid card Bios anche check. Also, every reboot cycle is really time consuming. So, since HP has always had management software for their raid controllers available for windows or linux, I went to check if there was some possibilities also for VMware ESXi.
First, I checked on HP website and there was some promising download:
Look, a VIB file! 🙂
I downloaded it and installed in the usual way on my ESXi 5.1 server (even if the package is officially listed for ESXi 5.0…).
I also installed the utilities to manage the several HP components, since the first one was only the driver. If you want to install only the Raid utility, look for the hpacucli vib file.
And I finally reboot the server in order to complete the installation, hopefully for the last time…
After reboot, I checked the components were installed correctly:
From here, let the fun begin! There are many commands you can run on the raid controller by running /opt/hp/hpacucli/bin/hpacucli, I’m going to show you some of them:
First, I identified the controller. Remember is in slot 3, this will be needed in the next commands.
As I said, my problem seemed to be related to the cache battery, so I went to check its status:
The status seems to be ok, but I went to enable anyway the cache, the command is:
there are many commands as I said, and I found this page with many example. Go to check it. As a last example, a fun stuff:
First, I identified the physical disks in the controller (pd), then I enabled the led on every single disk. This is the result 🙂
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