1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
23  * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
24  * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
25  * LLNL-CODE-403049.
26  * Copyright (c) 2018 by Delphix. All rights reserved.
27  */
28 
29 #ifndef _SYS_VDEV_DISK_H
30 #define	_SYS_VDEV_DISK_H
31 
32 /*
33  * Don't start the slice at the default block of 34; many storage
34  * devices will use a stripe width of 128k, other vendors prefer a 1m
35  * alignment.  It is best to play it safe and ensure a 1m alignment
36  * given 512B blocks.  When the block size is larger by a power of 2
37  * we will still be 1m aligned.  Some devices are sensitive to the
38  * partition ending alignment as well.
39  */
40 #define	NEW_START_BLOCK		2048
41 #define	PARTITION_END_ALIGNMENT	2048
42 
43 #ifdef _KERNEL
44 #include <sys/vdev.h>
45 #endif /* _KERNEL */
46 #endif /* _SYS_VDEV_DISK_H */
47