I have a https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/gaming-enthusiast-ssds/optane-900p-series/900p-480gb-aic-20nm.html intel 900P installed in a Ubuntu 16.04 machine (with nvme 1.0 kernel module loaded by default)
Some of the system information: (it's recognized as 2700... not 900P, I am not sure it's critical or not..)
lifeng@1wk300(x-pheonix:2):~/Workspace/x-phoenix/build$lspci |tail -1
04:00.0 Non-Volatile memory controller: Intel Corporation Device 2700
lifeng@1wk300(x-pheonix:2):~/Workspace/x-phoenix/build$uname -a
Linux 1wk300 4.13.0-38-generic # 43~16.04.1-Ubuntu SMP Wed Mar 14 17:48:43 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
However I saw the output of the fdisk saying it has 512 byte sector size and i/o size
Disk /dev/nvme0n1: 260.9 GiB, 280065171456 bytes, 547002288 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes So here are some of my questions and doubts:
1. Is there any way to reformat the nvme to 4k sector size? I am assuming I will achieving better performance instead of using 512 block size.
2. I have tried the newest release of nvme-format(from the https://github.com/linux-nvme/nvme-cli/blob/master/Documentation/nvme-format.txt nvme-cli) . using the default configurations(nvme-format + device name) gives the same blocks/sector size. I also tried to delete the default namespaces(nvme delete-ns) and create a new namespace of 4k size (create-ns), but it failed .. some of the output(the operation code sent by nvme-cli somehow is not correct..):
lifeng@1wk300(x-pheonix:2):~/Workspace/x-phoenix/build$sudo nvme detach-ns /dev/nvme0 --namespace-id=0x1
NVMe Status:INVALID_OPCODE(4001)
lifeng@1wk300(x-pheonix:2):~/Workspace/x-phoenix/build$sudo nvme list-ns /dev/nvme0 --namespace-id=0x1
[ 0]:0x209a97b0
[ 2]:0x209a97b0
[ 4]:0x209a97b0
[ 32]:0x2090000
lifeng@1wk300(x-pheonix:2):~/Workspace/x-phoenix/build$sudo nvme list-ns /dev/nvme0
NVMe Status:INVALID_NS(400b) NSID:0
lifeng@1wk300(x-pheonix:2):~/Workspace/x-phoenix/build$sudo nvme id-ns /dev/nvme0 --namespace-id=0x1
NVME Identify Namespace 1:
nsze : 0x209a97b0
ncap : 0x209a97b0
nuse : 0x209a97b0
nsfeat : 0
nlbaf : 0
flbas : 0
mc : 0
dpc : 0
dps : 0
nmic : 0
rescap : 0
fpi : 0
nawun : 0
nawupf : 0
nacwu : 0
nabsn : 0
nabo : 0
nabspf : 0
noiob : 0
nvmcap : 0
nguid : 00000000000000000000000000000000
eui64 : 0000000000000000
lbaf 0 : ms:0 lbads:9 rp:0x2 (in use)
3. I saw someone suggest using intel ssd data center tool. but it seems like it cannot recognize this ssd... perhaps this product is not supported yet?
lifeng@1wk300(x-pheonix:2):~/Workspace/x-phoenix/build$sudo isdct show -a -intelssd
No results
Thanks!
链接已复制
Hello fengggli,
Thanks for posting in our communities.
Some Intel NVM Express* Drives in the https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/data-center-ssds.html Data Center family support sector size change. However, this is not the case for https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/consumer-ssds.html Consumer/https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/gaming-enthusiast-ssds.html Enthusiast drives such as the Intel® Optane™ SSD 900P Series. You can find more details in the following article:
- https://www.intel.com/content/www/us/en/support/articles/000016238/memory-and-storage/data-center-ssds.html Change Variable Sector Size on NVM Express* Drives
Please let us know if there's anything else we can do for you.
Best regards,
Eugenio F.
Hello fengggli,
Thanks for your reply. As we mentioned before, sector change size is not supported on the Intel® Optane™ SSD 900P Series.
We recommend one of the drives on the https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/data-center-ssds.html Intel® SSD Data Center Family that support sector size change.
Best regards,
Eugenio F.
