From 9daae583d8ba5068c91ddb85f5c3e04e8cee8258 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Troels=20N=C3=B8rgaard?= Date: Sat, 7 Jul 2018 01:15:19 +0200 Subject: [PATCH] Default ashift for Amazon EC2 NVMe devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Giuseppe Di Natale Reviewed-by: Brian Behlendorf Signed-off-by: Troels Nørgaard Closes #7676 --- cmd/zpool/zpool_vdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/cmd/zpool/zpool_vdev.c b/cmd/zpool/zpool_vdev.c index fd6bd9e76..69ff7ff6f 100644 --- a/cmd/zpool/zpool_vdev.c +++ b/cmd/zpool/zpool_vdev.c @@ -191,6 +191,7 @@ static vdev_disk_db_entry_t vdev_disk_database[] = { {"ATA INTEL SSDSC2BP24", 4096}, {"ATA INTEL SSDSC2BP48", 4096}, {"NA SmrtStorSDLKAE9W", 4096}, + {"NVMe Amazon EC2 NVMe ", 4096}, /* Imported from Open Solaris */ {"ATA MARVELL SD88SA02", 4096}, /* Advanced format Hard drives */