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| author | Troels Nørgaard <[email protected]> | 2018-07-07 01:15:19 +0200 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2018-07-06 16:15:19 -0700 |
| commit | 94370f595597389fe317c47acec588e10bd76cf5 (patch) | |
| tree | 0793e9e8236cc9b3434aa01323ee758e73f2e96d /tests | |
| parent | 3f4e6d6f36732f0bd3b55487f04281f8eb553082 (diff) | |
Default ashift for Amazon EC2 NVMe devices
Add a default 4 KiB ashift for Amazon EC2 NVMe devices on instances with
NVMe ephemeral devices, such as the types c5d, f1, i3 and m5d.
As per the official documentation [1] a 4096 byte blocksize should be
used to match the underlying hardware.
The string was identified via:
$ sudo sginfo -M /dev/nvme0n1
INQUIRY response (cmd: 0x12)
----------------------------
Device Type 0
Vendor: NVMe
Product: Amazon EC2 NVMe
Revision level:
$ lsblk -io KNAME,TYPE,SIZE,MODEL
KNAME TYPE SIZE MODEL
nvme0n1 disk 442.4G Amazon EC2 NVMe Instance Storage
[1] https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/
storage-optimized-instances.html
Retrived 2018-07-03
Reviewed-by: George Melikov <[email protected]>
Reviewed-by: Giuseppe Di Natale <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Troels Nørgaard <[email protected]>
Closes #7676
Diffstat (limited to 'tests')
0 files changed, 0 insertions, 0 deletions