blog/tags/raid/index.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
   2           "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
   3 <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
   4   <head>
   5     <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
   6     <title>Petter Reinholdtsen: Entries Tagged raid</title>
   7     <link rel="stylesheet" type="text/css" media="screen" href="http://people.skolelinux.org/pere/blog/style.css" />
   8     <link rel="stylesheet" type="text/css" media="screen" href="http://people.skolelinux.org/pere/blog/vim.css" />
   9     <link rel="alternate" title="RSS Feed" href="raid.rss" type="application/rss+xml" />
  10   </head>
  11   <body>
  12     <div class="title">
  13  <h1>
  14      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21     <h3>Entries tagged "raid".</h3>
  22
  23     <div class="entry">
  24       <div class="title">
  25         <a href="http://people.skolelinux.org/pere/blog/How_to_figure_out_which_RAID_disk_to_replace_when_it_fail.html">How to figure out which RAID disk to replace when it fail</a>
  26       </div>
  27       <div class="date">
  28         14th February 2012
  29       </div>
  30       <div class="body">
  31         <p>Once in a while my home server have disk problems.  Thanks to Linux
  32 Software RAID, I have not lost data yet (but
  33 <a href="http://comments.gmane.org/gmane.linux.raid/34532">I was
  34 close</a> this summer :).  But once a disk is starting to behave
  35 funny, a practical problem present itself.  How to get from the Linux
  36 device name (like /dev/sdd) to something that can be used to identify
  37 the disk when the computer is turned off?  In my case I have SATA
  38 disks with a unique ID printed on the label.  All I need is a way to
  39 figure out how to query the disk to get the ID out.</p>
  40
  41 <p>After fumbling a bit, I
  42 <a href="http://www.cyberciti.biz/faq/linux-getting-scsi-ide-harddisk-information/">found
  43 that hdparm -I</a> will report the disk serial number, which is
  44 printed on the disk label.  The following (almost) one-liner can be
  45 used to look up the ID of all the failed disks:</p>
  46
  47 <blockquote><pre>
  48 for d in $(cat /proc/mdstat |grep '(F)'|tr ' ' "\n"|grep '(F)'|cut -d\[ -f1|sort -u);
  49 do
  50     printf "Failed disk $d: "
  51     hdparm -I /dev/$d |grep 'Serial Num'
  52 done
  53 </blockquote></pre>
  54
  55 <p>Putting it here to make sure I do not have to search for it the
  56 next time, and in case other find it useful.</p>
  57
  58 <p>At the moment I have two failing disk. :(</p>
  59
  60 <blockquote><pre>
  61 Failed disk sdd1:       Serial Number:      WD-WCASJ1860823
  62 Failed disk sdd2:       Serial Number:      WD-WCASJ1860823
  63 Failed disk sde2:       Serial Number:      WD-WCASJ1840589
  64 </blockquote></pre>
  65
  66 <p>The last time I had failing disks, I added the serial number on
  67 labels I printed and stuck on the short sides of each disk, to be able
  68 to figure out which disk to take out of the box without having to
  69 remove each disk to look at the physical vendor label.  The vendor
  70 label is at the top of the disk, which is hidden when the disks are
  71 mounted inside my box.</p>
  72
  73 <p>I really wish the check_linux_raid Nagios plugin for checking Linux
  74 Software RAID in the
  75 <a href="http://packages.qa.debian.org/n/nagios-plugins.html">nagios-plugins-standard</a>
  76 debian package would look up this value automatically, as it would
  77 make the plugin a lot more useful when my disks fail.  At the moment
  78 it only report a failure when there are no more spares left (it really
  79 should warn as soon as a disk is failing), and it do not tell me which
  80 disk(s) is failing when the RAID is running short on disks.</p>
  81
  82       </div>
  83       <div class="tags">
  84
  85
  86         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/raid">raid</a>.
  87
  88
  89       </div>
  90     </div>
  91     <div class="padding"></div>
  92
  93     <p style="text-align: right;"><a href="raid.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS Feed" width="36" height="14" /></a></p>
  94     <div id="sidebar">
  95
  96
  97
  98 <h2>Archive</h2>
  99 <ul>
 100
 101 <li>2016
 102 <ul>
 103
 104 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 105
 106 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 107
 108 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 109
 110 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 111
 112 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 113
 114 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 115
 116 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (1)</a></li>
 117
 118 </ul></li>
 119
 120 <li>2015
 121 <ul>
 122
 123 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 124
 125 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 126
 127 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 128
 129 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 130
 131 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 132
 133 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 134
 135 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 136
 137 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 138
 139 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 140
 141 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 142
 143 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 144
 145 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 146
 147 </ul></li>
 148
 149 <li>2014
 150 <ul>
 151
 152 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 153
 154 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 155
 156 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 157
 158 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 159
 160 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 161
 162 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 163
 164 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 165
 166 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 167
 168 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 169
 170 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 171
 172 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 173
 174 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 175
 176 </ul></li>
 177
 178 <li>2013
 179 <ul>
 180
 181 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 182
 183 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 184
 185 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 186
 187 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 188
 189 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 190
 191 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 192
 193 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 194
 195 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 196
 197 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 198
 199 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 200
 201 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 202
 203 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 204
 205 </ul></li>
 206
 207 <li>2012
 208 <ul>
 209
 210 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 211
 212 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 213
 214 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 215
 216 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 217
 218 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 219
 220 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 221
 222 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 223
 224 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 225
 226 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 227
 228 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 229
 230 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 231
 232 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 233
 234 </ul></li>
 235
 236 <li>2011
 237 <ul>
 238
 239 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 240
 241 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 242
 243 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 244
 245 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 246
 247 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 248
 249 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 250
 251 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 252
 253 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 254
 255 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 256
 257 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 258
 259 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 260
 261 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 262
 263 </ul></li>
 264
 265 <li>2010
 266 <ul>
 267
 268 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 269
 270 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 271
 272 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 273
 274 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 275
 276 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 277
 278 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 279
 280 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 281
 282 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 283
 284 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 285
 286 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 287
 288 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 289
 290 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 291
 292 </ul></li>
 293
 294 <li>2009
 295 <ul>
 296
 297 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 298
 299 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 300
 301 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 302
 303 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 304
 305 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 306
 307 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 308
 309 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 310
 311 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 312
 313 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 314
 315 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 316
 317 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 318
 319 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 320
 321 </ul></li>
 322
 323 <li>2008
 324 <ul>
 325
 326 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 327
 328 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 329
 330 </ul></li>
 331
 332 </ul>
 333
 334
 335
 336 <h2>Tags</h2>
 337 <ul>
 338
 339  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 340
 341  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 342
 343  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 344
 345  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 346
 347  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
 348
 349  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (15)</a></li>
 350
 351  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 352
 353  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 354
 355  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (132)</a></li>
 356
 357  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (157)</a></li>
 358
 359  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 360
 361  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (15)</a></li>
 362
 363  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (22)</a></li>
 364
 365  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 366
 367  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (322)</a></li>
 368
 369  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 370
 371  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 372
 373  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (27)</a></li>
 374
 375  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 376
 377  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (17)</a></li>
 378
 379  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 380
 381  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
 382
 383  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (12)</a></li>
 384
 385  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (19)</a></li>
 386
 387  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 388
 389  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 390
 391  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 392
 393  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 394
 395  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 396
 397  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (39)</a></li>
 398
 399  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (7)</a></li>
 400
 401  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (275)</a></li>
 402
 403  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (181)</a></li>
 404
 405  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (26)</a></li>
 406
 407  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 408
 409  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (60)</a></li>
 410
 411  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (92)</a></li>
 412
 413  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 414
 415  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 416
 417  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 418
 419  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 420
 421  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (9)</a></li>
 422
 423  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 424
 425  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 426
 427  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 428
 429  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (47)</a></li>
 430
 431  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 432
 433  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
 434
 435  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (49)</a></li>
 436
 437  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (4)</a></li>
 438
 439  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (10)</a></li>
 440
 441  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (37)</a></li>
 442
 443  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (2)</a></li>
 444
 445  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 446
 447  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
 448
 449  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (58)</a></li>
 450
 451  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 452
 453  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (38)</a></li>
 454
 455 </ul>
 456
 457
 458     </div>
 459     <p style="text-align: right">
 460  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 461 </p>
 462
 463   </body>
 464 </html>