Troubleshooting your systemTo get help with your Dell PowerEdge RAID Controller (PERC) S140, you can contact your Dell Technical Service representative or seedell.com/support.Topics:• Unable to configure Linux RAID using UEFI Configuration Utility• Unable to configure Linux RAID on systems with more than 10 NVMe PCIe SSDs• Performance degradation after disabling SATA physical disk write cache policy• Performance degradation in UEFI Human Interface Infrastructure• Unable to modify any feature settings in UEFI or OPROM• Extra reboot during OS installation• OS installation failing on NVMe PCIe SSD with third-party driver• System startup issues• The BIOS configuration utility option does not display• Configuring RAID using the Option ROM Utility is disabled• Warning Messages• Other errors appearing on the BIOS screen• Physical disk - related errors• Virtual disks - Related errorsUnable to configure Linux RAID using UEFIConfiguration UtilityLikely Cause: Option to select Linux RAID in Configuring Linux RAID page will be disabled if RAID is already configured.Corrective Action: To resolve this issue:1 If applicable, delete the virtual disk created in Windows RAID.2 Convert physical disk to Non-RAID disk. See Converting physical disk to Non-RAID disk.3 Convert physical disk to RAID. See Converting physical disk to RAID capable disk.4 Configure Linux RAID. See Configuring Linux RAIDUnable to configure Linux RAID on systems with morethan 10 NVMe PCIe SSDsCorrective Action: Ensure that the number of physical disks in a Linux RAID does not exceed 10 NVMe PCIe SSDs.8Troubleshooting your system 43
