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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25 #include <assert.h>
26 #include <sys/zfs_context.h>
27 #include <sys/avl.h>
28 #include <string.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <sys/spa.h>
32 #include <sys/fs/zfs.h>
33 #include <sys/refcount.h>
34
35 /*
36 * Routines needed by more than one client of libzpool.
37 */
38
39 static void
show_vdev_stats(const char * desc,const char * ctype,nvlist_t * nv,int indent)40 show_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent)
41 {
42 vdev_stat_t *vs;
43 vdev_stat_t v0 = { 0 };
44 uint64_t sec;
45 uint64_t is_log = 0;
46 nvlist_t **child;
47 uint_t c, children;
48 char used[6], avail[6];
49 char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6];
50 char *prefix = "";
51
52 if (indent == 0 && desc != NULL) {
53 (void) printf(" "
54 " capacity operations bandwidth ---- errors ----\n");
55 (void) printf("description "
56 "used avail read write read write read write cksum\n");
57 }
58
59 if (desc != NULL) {
60 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log);
61
62 if (is_log)
63 prefix = "log ";
64
65 if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
66 (uint64_t **)&vs, &c) != 0)
67 vs = &v0;
68
69 sec = MAX(1, vs->vs_timestamp / NANOSEC);
70
71 nicenum(vs->vs_alloc, used, sizeof (used));
72 nicenum(vs->vs_space - vs->vs_alloc, avail, sizeof (avail));
73 nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops, sizeof (rops));
74 nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops, sizeof (wops));
75 nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes,
76 sizeof (rbytes));
77 nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes,
78 sizeof (wbytes));
79 nicenum(vs->vs_read_errors, rerr, sizeof (rerr));
80 nicenum(vs->vs_write_errors, werr, sizeof (werr));
81 nicenum(vs->vs_checksum_errors, cerr, sizeof (cerr));
82
83 (void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n",
84 indent, "",
85 prefix,
86 indent + strlen(prefix) - 25 - (vs->vs_space ? 0 : 12),
87 desc,
88 vs->vs_space ? 6 : 0, vs->vs_space ? used : "",
89 vs->vs_space ? 6 : 0, vs->vs_space ? avail : "",
90 rops, wops, rbytes, wbytes, rerr, werr, cerr);
91 }
92
93 if (nvlist_lookup_nvlist_array(nv, ctype, &child, &children) != 0)
94 return;
95
96 for (c = 0; c < children; c++) {
97 nvlist_t *cnv = child[c];
98 char *cname, *tname;
99 uint64_t np;
100 if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) &&
101 nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname))
102 cname = "<unknown>";
103 tname = calloc(1, strlen(cname) + 2);
104 (void) strcpy(tname, cname);
105 if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0)
106 tname[strlen(tname)] = '0' + np;
107 show_vdev_stats(tname, ctype, cnv, indent + 2);
108 free(tname);
109 }
110 }
111
112 void
show_pool_stats(spa_t * spa)113 show_pool_stats(spa_t *spa)
114 {
115 nvlist_t *config, *nvroot;
116 char *name;
117
118 VERIFY(spa_get_stats(spa_name(spa), &config, NULL, 0) == 0);
119
120 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
121 &nvroot) == 0);
122 VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
123 &name) == 0);
124
125 show_vdev_stats(name, ZPOOL_CONFIG_CHILDREN, nvroot, 0);
126 show_vdev_stats(NULL, ZPOOL_CONFIG_L2CACHE, nvroot, 0);
127 show_vdev_stats(NULL, ZPOOL_CONFIG_SPARES, nvroot, 0);
128
129 nvlist_free(config);
130 }
131