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Troels Nørgaard 9daae583d8 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 02:46:51 -07:00
.github Update codecov.yml 2018-03-14 16:10:36 -07:00
cmd Default ashift for Amazon EC2 NVMe devices 2018-07-06 02:46:51 -07:00
config Linux 4.14 compat: blk_queue_stackable() 2018-07-06 02:46:51 -07:00
contrib modprobe zfs during dracut mount 2018-05-07 17:19:57 -07:00
etc chmod -x on etc/init.d/zfs-*.in automake files 2018-05-07 17:19:57 -07:00
include Linux 4.14 compat: blk_queue_stackable() 2018-07-06 02:46:51 -07:00
lib Add pool state /proc entry, "SUSPENDED" pools 2018-07-06 02:46:51 -07:00
man Add back iostat -y or -w descriptions 2018-05-07 17:19:57 -07:00
module Linux 4.14 compat: blk_queue_stackable() 2018-07-06 02:46:51 -07:00
rpm Tag zfs-0.7.9 2018-05-08 13:33:38 -07:00
scripts Support Debian DKMS builds 2018-07-06 02:46:51 -07:00
tests Add pool state /proc entry, "SUSPENDED" pools 2018-07-06 02:46:51 -07:00
udev Fix spelling 2017-01-03 11:31:18 -06:00
.gitignore Add configure option to enable gcov analysis 2018-03-14 16:10:36 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Add pool state /proc entry, "SUSPENDED" pools 2018-07-06 02:46:51 -07:00
copy-builtin Allow c99 when building ZFS in the kernel tree 2017-03-27 12:31:15 -07:00
COPYRIGHT Update ZED copyright boilerplate 2015-05-11 15:07:00 -07:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Add support for "--enable-code-coverage" option 2018-03-14 16:10:36 -07:00
META Tag zfs-0.7.9 2018-05-08 13:33:38 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Update codecov.yml 2018-03-14 16:10:36 -07:00
TEST Retire filebench testing 2017-06-01 06:24:28 -07:00
zfs-script-config.sh.in zpool iostat/status -c improvements 2017-06-05 10:52:15 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

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

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.