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 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <assert.h> 29 #include <sys/zfs_context.h> 30 #include <sys/avl.h> 31 #include <string.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <sys/spa.h> 35 #include <sys/fs/zfs.h> 36 #include <sys/refcount.h> 37 38 /* 39 * Routines needed by more than one client of libzpool. 40 */ 41 42 void 43 nicenum(uint64_t num, char *buf) 44 { 45 uint64_t n = num; 46 int index = 0; 47 char u; 48 49 while (n >= 1024) { 50 n = (n + (1024 / 2)) / 1024; /* Round up or down */ 51 index++; 52 } 53 54 u = " KMGTPE"[index]; 55 56 if (index == 0) { 57 (void) sprintf(buf, "%llu", (u_longlong_t)n); 58 } else if (n < 10 && (num & (num - 1)) != 0) { 59 (void) sprintf(buf, "%.2f%c", 60 (double)num / (1ULL << 10 * index), u); 61 } else if (n < 100 && (num & (num - 1)) != 0) { 62 (void) sprintf(buf, "%.1f%c", 63 (double)num / (1ULL << 10 * index), u); 64 } else { 65 (void) sprintf(buf, "%llu%c", (u_longlong_t)n, u); 66 } 67 } 68 69 static void 70 show_vdev_stats(const char *desc, nvlist_t *nv, int indent) 71 { 72 nvlist_t **child; 73 uint_t c, children; 74 vdev_stat_t *vs; 75 uint64_t sec; 76 uint64_t is_log = 0; 77 char used[6], avail[6]; 78 char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6]; 79 char *prefix = ""; 80 81 if (indent == 0) { 82 (void) printf(" " 83 " capacity operations bandwidth ---- errors ----\n"); 84 (void) printf("description " 85 "used avail read write read write read write cksum\n"); 86 } 87 88 VERIFY(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_STATS, 89 (uint64_t **)&vs, &c) == 0); 90 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log); 91 92 if (is_log) 93 prefix = "log "; 94 95 sec = MAX(1, vs->vs_timestamp / NANOSEC); 96 97 nicenum(vs->vs_alloc, used); 98 nicenum(vs->vs_space - vs->vs_alloc, avail); 99 nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops); 100 nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops); 101 nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes); 102 nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes); 103 nicenum(vs->vs_read_errors, rerr); 104 nicenum(vs->vs_write_errors, werr); 105 nicenum(vs->vs_checksum_errors, cerr); 106 107 (void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n", 108 indent, "", 109 prefix, 110 indent + strlen(prefix) - 19 - (vs->vs_space ? 0 : 12), desc, 111 vs->vs_space ? 6 : 0, vs->vs_space ? used : "", 112 vs->vs_space ? 6 : 0, vs->vs_space ? avail : "", 113 rops, wops, rbytes, wbytes, rerr, werr, cerr); 114 115 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, 116 &child, &children) != 0) 117 return; 118 119 for (c = 0; c < children; c++) { 120 nvlist_t *cnv = child[c]; 121 char *cname, *tname; 122 uint64_t np; 123 if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) && 124 nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname)) 125 cname = "<unknown>"; 126 tname = calloc(1, strlen(cname) + 2); 127 (void) strcpy(tname, cname); 128 if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0) 129 tname[strlen(tname)] = '0' + np; 130 show_vdev_stats(tname, cnv, indent + 2); 131 free(tname); 132 } 133 } 134 135 void 136 show_pool_stats(spa_t *spa) 137 { 138 nvlist_t *config, *nvroot; 139 char *name; 140 141 spa_config_enter(spa, RW_READER, FTAG); 142 config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); 143 spa_config_exit(spa, FTAG); 144 145 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 146 &nvroot) == 0); 147 VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 148 &name) == 0); 149 150 show_vdev_stats(name, nvroot, 0); 151 } 152