nvme admin-passthru /dev/nvme0 -o 0x9 --cdw10=0xc1 --cdw11=0x2000000 --cdw12=0x0 OP to GB 1.The decimal value of LBA is (X * 1000 * 1000 * 1000 / 512), then convert it to Hex Value. 2. Put the Hex Value to cdw11 3. If the Hex Value over 0xFFFFFFFF, put the hig...
nvme admin-passthru /dev/nvme0 -o 0x9 --cdw10=0xc1 --cdw11=0x2000000 --cdw12=0x0OP to GB1.The decimal value of LBA is (X * 1000 * 1000 * 1000 / 512), then convert it to Hex Value.2. Put the Hex Value to cdw113. If the Hex Value over 0xFFFFFFFF, put the high overf...
A workload with multiple distinct IO patterns with hot data temperature (many overwrites) is definitely a high WAF causing one and will be certainly benefitted from the FDP RUH based segregation. For example, the following workloads could be easily benefit from FDP. Workloads with inherent...
nvme admin-passthru /dev/nvme0 -o 0x9 --cdw10=0xc1 --cdw11=0x2000000 --cdw12=0x0 OP to GB 1.The decimal value of LBA is (X * 1000 * 1000 * 1000 / 512), then convert it to Hex Value. 2. Put the Hex Value to cdw11 3. If the Hex Value over 0xFFFFFFFF, put the hig...
io-passthru Submit an arbitrary IO command, return results security-send Submit a Security Send command, return results security-recv Submit a Security Receive command, return results resv-acquire Submit a Reservation Acquire, return results
nvme admin-passthru /dev/nvme0 -o 0x9 --cdw10=0xc1 --cdw11=0x2000000 --cdw12=0x0 OP to GB 1.The decimal value of LBA is (X * 1000 * 1000 * 1000 / 512), then convert it to Hex Value. 2. Put the Hex Value to cdw11 3. If the Hex Value over 0xFFFFFFFF, put the hig...
'nvme-io-passthru' <device> [--opcode=<opcode> | -o <opcode>] [--flags=<flags> | -f <flags>] [-rsvd=<rsvd> | -R <rsvd>] [--namespace-id=<nsid> | -nsid <nsid>] [--cdw2=<cdw2>] [--cdw3=<cdw3>] [--cdw10=<cdw10>] [--cdw11=<cdw11>] [--cdw12=<cdw12>...
$ sudo nvme io-passthru /dev/nvme0 --opcode=0x02 --namespace-id=0x1 --data-len=512 --read --cdw10=0 --cdw11=0 --cdw12=0 -b > lba.0.io Read is opcode 0x02, we are sending command to namespace 0x1, reading 512 bytes, code word 10 and 11 (cdw10 and cdw11) specifies...
passthru Submit an arbitrary SCSI command, return results se-protocol-in Submit SECURITY PROTOCOL IN command, return results smart-simulate Retrieve different logs, return simulate smart sync Synchronize cache to non-volatile cache, as known as flush read Send a read command to disk write Send a...
[root@localhost nvme-cli-master]# nvme admin-passthru /dev/nvme9n1 -o 0x9 --cdw10=0xc1 --cdw11=0x18BCFE568 --cdw12=0x1 NVMe command result:00000000 5)nvme-cli 创建namespaces 什么是Namespace? 简单地说,namespace是对用户空间的逻辑划分,就是把用户空间这块大披萨划分开,大家各吃各的。那么...