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Troels Nørgaard 94370f5955 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 <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Troels Nørgaard <tnn@tradeshift.com>
Closes #7676
2018-07-06 16:15:19 -07:00
.github Small cleanup of PR and issue templates 2018-05-15 09:02:57 -07:00
cmd Default ashift for Amazon EC2 NVMe devices 2018-07-06 16:15:19 -07:00
config Linux 4.14 compat: blk_queue_stackable() 2018-06-19 21:52:45 -07:00
contrib Add pyzfs build directories to gitignore 2018-06-11 18:42:12 -07:00
etc Minor documentation, logging, and testing typos 2018-06-07 09:38:39 -07:00
include OpenZFS 9238 - ZFS Spacemap Encoding V2 2018-07-05 12:02:34 -07:00
lib Enforce PROP_ONETIME on zpool properties 2018-06-28 14:49:17 -07:00
man OpenZFS 9238 - ZFS Spacemap Encoding V2 2018-07-05 12:02:34 -07:00
module OpenZFS 9238 - ZFS Spacemap Encoding V2 2018-07-05 12:02:34 -07:00
rpm Update build system and packaging 2018-05-29 16:00:33 -07:00
scripts ZTS: Adopt OpenZFS test analysis script 2018-06-20 14:03:13 -07:00
tests OpenZFS 9238 - ZFS Spacemap Encoding V2 2018-07-05 12:02:34 -07:00
udev Add kernel module auto-loading 2018-03-13 10:45:55 -07:00
.gitignore Ignore *.o.ur-safe build artifacts 2018-05-13 18:59:02 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Update build system and packaging 2018-05-29 16:00:33 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
configure.ac OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
copy-builtin copy-builtin: SPL must be in Kbuild first 2018-06-15 15:16:29 -07:00
COPYRIGHT Update build system and packaging 2018-05-29 16:00:33 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am make install only works once 2018-05-31 09:19:59 -07:00
META Linux compat 4.18: check_disk_size_change() 2018-06-15 15:05:21 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Explicitly state supported Linux versions 2018-05-30 20:11:19 -07:00
TEST Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

codecov coverity

Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.

Release

ZFS on Linux is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported kernel versions.