Unable to change queue parameter like nr_requests, max_sectors_kb for nvme device
Issue
-
When changing the parameter of
/sys/block/nvme1/queue/nr_requestsfrom 128 to 512 the system outputs errors like:# echo 512 > /sys/block/nvme1/queue/nr_requests -bash: echo: write error: Invalid argument -
When changing the parameter of
/sys/block/nvme1/queue/max_sectors_kbfrom 512 to 1024 the system outputs errors like:# echo 1024 > /sys/block/nvme0n1/queue/max_sectors_kb -bash: echo: write error: Invalid argument
Environment
- Red Hat Enterprise Linux 4 (RHEL)
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Intel PCIe Data Center (DC) SSD NVME controller
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