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
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zpool.d	Add SMART self-test results to zpool status -c	2018-02-27 09:31:27 -08:00
.gitignore	Add .gitignore files to exclude build products	2010-01-08 11:35:17 -08:00
Makefile.am	Tunable directory for zfs runtime scripts	2018-06-07 09:59:59 -07:00
zpool_iter.c	Add libtpool (thread pools)	2017-08-09 15:31:08 -07:00
zpool_main.c	Fix missing option '-e' in zpool online usage	2018-06-26 10:17:55 -07:00
zpool_util.c	Add libtpool (thread pools)	2017-08-09 15:31:08 -07:00
zpool_util.h	Add libtpool (thread pools)	2017-08-09 15:31:08 -07:00
zpool_vdev.c	Default ashift for Amazon EC2 NVMe devices	2018-07-06 16:15:19 -07:00