Hello Community,
We recently acquired a new infrastructure that includes Commvault version 11.32.69, an HPE ProLiant DL360 physical server running Windows Server 2022, and an HPE MSL2024 library with two LTO9 drives. This infrastructure was implemented to back up a small environment consisting of SQL databases, a VMware 6.0 environment with 20 virtual machines, and some SQL Server databases.
Although the initial setup seemed promising, we have encountered two significant issues that are impacting our backup operations:
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Excessive Cleaning Cartridge Requests (Case 250110-656) ๐งน:
During backups, the LTO9 drives frequently requested cleaning cartridges. This issue persisted even after HPE replaced both drives three times and after adjusting the Drive Clean parameter in the library properties to a value of 515. -
Low Backup Performance (Case 250110-659)
:
In our performance tests, we were unable to exceed a backup speed of 250 GB/h for virtual machines and file system backups. This performance is far below what is expected for LTO9 drives, making it difficult to meet the required backup windows for our environment. -
Adjustments Made (Images Attached)
:
We have applied several adjustments, including updating the library firmware to version 7.0 and the drive firmware to R3G3. Additionally, specific configuration parameters were reviewed and adjusted (as shown in the attached images).As a result of these updates, the excessive cleaning cartridge requests have significantly decreased, allowing us to carry out backups more consistently. However, we are still facing challenges with low backup performance, and the error messages in Commvault persist after restarting the library (these errors appear for both drives).
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Additional Context:
- Despite replacing the hardware multiple times and connecting an additional library with the same specifications, the same performance and error issues persist.
- We are using a SAN connection, and the infrastructure has been configured following best practice recommendations.
We have logged both support cases with Commvault:
- Case 250110-656: Related to the previous excessive cleaning cartridge requests.
- Case 250110-659: Related to the ongoing low backup performance.
We would greatly appreciate any recommendations or shared experiences that could help us resolve the remaining performance and error challenges.
Thank you in advance for your assistance!
Images of adjustments and errors are attached for reference.

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