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 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 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