ceph/qa/rbd/krbd_discard.t

   1
   2   $ rbd create --size 4M img
   3   $ DEV=$(sudo rbd map img)
   4
   5 Zero, < 1 block:
   6
   7   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
   8   $ blkdiscard -o 156672 -l 512 $DEV
   9   $ hexdump $DEV
  10   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  11   *
  12   0400000
  13
  14   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  15   $ blkdiscard -o 131584 -l 64512 $DEV
  16   $ hexdump $DEV
  17   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  18   *
  19   0400000
  20
  21   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  22   $ blkdiscard -o 131584 -l 65024 $DEV
  23   $ hexdump $DEV
  24   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  25   *
  26   0400000
  27
  28   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  29   $ blkdiscard -o 131072 -l 65024 $DEV
  30   $ hexdump $DEV
  31   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  32   *
  33   0400000
  34
  35 Zero, 1 block:
  36
  37   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  38   $ blkdiscard -o 131072 -l 65536 $DEV
  39   $ hexdump $DEV
  40   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  41   *
  42   0020000 0000 0000 0000 0000 0000 0000 0000 0000
  43   *
  44   0030000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  45   *
  46   0400000
  47
  48   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  49   $ blkdiscard -o 131072 -l 66048 $DEV
  50   $ hexdump $DEV
  51   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  52   *
  53   0020000 0000 0000 0000 0000 0000 0000 0000 0000
  54   *
  55   0030000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  56   *
  57   0400000
  58
  59   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  60   $ blkdiscard -o 130560 -l 66048 $DEV
  61   $ hexdump $DEV
  62   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  63   *
  64   0020000 0000 0000 0000 0000 0000 0000 0000 0000
  65   *
  66   0030000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  67   *
  68   0400000
  69
  70   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  71   $ blkdiscard -o 130560 -l 66560 $DEV
  72   $ hexdump $DEV
  73   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  74   *
  75   0020000 0000 0000 0000 0000 0000 0000 0000 0000
  76   *
  77   0030000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  78   *
  79   0400000
  80
  81 Zero, < 2 blocks:
  82
  83   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  84   $ blkdiscard -o 163840 -l 65536 $DEV
  85   $ hexdump $DEV
  86   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  87   *
  88   0400000
  89
  90   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  91   $ blkdiscard -o 131584 -l 130048 $DEV
  92   $ hexdump $DEV
  93   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
  94   *
  95   0400000
  96
  97   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
  98   $ blkdiscard -o 131584 -l 130560 $DEV
  99   $ hexdump $DEV
 100   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 101   *
 102   0030000 0000 0000 0000 0000 0000 0000 0000 0000
 103   *
 104   0040000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 105   *
 106   0400000
 107
 108   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 109   $ blkdiscard -o 131072 -l 130560 $DEV
 110   $ hexdump $DEV
 111   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 112   *
 113   0020000 0000 0000 0000 0000 0000 0000 0000 0000
 114   *
 115   0030000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 116   *
 117   0400000
 118
 119 Zero, 2 blocks:
 120
 121   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 122   $ blkdiscard -o 131072 -l 131072 $DEV
 123   $ hexdump $DEV
 124   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 125   *
 126   0020000 0000 0000 0000 0000 0000 0000 0000 0000
 127   *
 128   0040000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 129   *
 130   0400000
 131
 132   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 133   $ blkdiscard -o 131072 -l 131584 $DEV
 134   $ hexdump $DEV
 135   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 136   *
 137   0020000 0000 0000 0000 0000 0000 0000 0000 0000
 138   *
 139   0040000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 140   *
 141   0400000
 142
 143   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 144   $ blkdiscard -o 130560 -l 131584 $DEV
 145   $ hexdump $DEV
 146   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 147   *
 148   0020000 0000 0000 0000 0000 0000 0000 0000 0000
 149   *
 150   0040000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 151   *
 152   0400000
 153
 154   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 155   $ blkdiscard -o 130560 -l 132096 $DEV
 156   $ hexdump $DEV
 157   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 158   *
 159   0020000 0000 0000 0000 0000 0000 0000 0000 0000
 160   *
 161   0040000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 162   *
 163   0400000
 164
 165 Zero, 37 blocks:
 166
 167   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 168   $ blkdiscard -o 589824 -l 2424832 $DEV
 169   $ hexdump $DEV
 170   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 171   *
 172   0090000 0000 0000 0000 0000 0000 0000 0000 0000
 173   *
 174   02e0000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 175   *
 176   0400000
 177
 178   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 179   $ blkdiscard -o 589312 -l 2424832 $DEV
 180   $ hexdump $DEV
 181   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 182   *
 183   0090000 0000 0000 0000 0000 0000 0000 0000 0000
 184   *
 185   02d0000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 186   *
 187   0400000
 188
 189   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 190   $ blkdiscard -o 590336 -l 2424832 $DEV
 191   $ hexdump $DEV
 192   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 193   *
 194   00a0000 0000 0000 0000 0000 0000 0000 0000 0000
 195   *
 196   02e0000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 197   *
 198   0400000
 199
 200 Truncate:
 201
 202   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 203   $ blkdiscard -o 4193792 -l 512 $DEV
 204   $ hexdump $DEV
 205   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 206   *
 207   0400000
 208
 209   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 210   $ blkdiscard -o 4129280 -l 65024 $DEV
 211   $ hexdump $DEV
 212   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 213   *
 214   0400000
 215
 216   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 217   $ blkdiscard -o 4128768 -l 65536 $DEV
 218   $ hexdump $DEV
 219   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 220   *
 221   03f0000 0000 0000 0000 0000 0000 0000 0000 0000
 222   *
 223   0400000
 224
 225   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 226   $ blkdiscard -o 4128256 -l 66048 $DEV
 227   $ hexdump $DEV
 228   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 229   *
 230   03f0000 0000 0000 0000 0000 0000 0000 0000 0000
 231   *
 232   0400000
 233
 234   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 235   $ blkdiscard -o 4063744 -l 130560 $DEV
 236   $ hexdump $DEV
 237   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 238   *
 239   03f0000 0000 0000 0000 0000 0000 0000 0000 0000
 240   *
 241   0400000
 242
 243   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 244   $ blkdiscard -o 4063232 -l 131072 $DEV
 245   $ hexdump $DEV
 246   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 247   *
 248   03e0000 0000 0000 0000 0000 0000 0000 0000 0000
 249   *
 250   0400000
 251
 252   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 253   $ blkdiscard -o 4062720 -l 131584 $DEV
 254   $ hexdump $DEV
 255   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 256   *
 257   03e0000 0000 0000 0000 0000 0000 0000 0000 0000
 258   *
 259   0400000
 260
 261   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 262   $ blkdiscard -o 512 -l 4193792 $DEV
 263   $ hexdump $DEV
 264   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 265   *
 266   0010000 0000 0000 0000 0000 0000 0000 0000 0000
 267   *
 268   0400000
 269
 270 Delete:
 271
 272   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 273   $ blkdiscard -o 0 -l 4194304 $DEV
 274   $ hexdump $DEV
 275   0000000 0000 0000 0000 0000 0000 0000 0000 0000
 276   *
 277   0400000
 278
 279 Empty clone:
 280
 281   $ xfs_io -c 'pwrite -S 0xab -w 0 4M' $DEV >/dev/null
 282   $ sudo rbd unmap $DEV
 283   $ rbd snap create img@snap
 284   $ rbd snap protect img@snap
 285
 286   $ rbd clone img@snap cloneimg1
 287   $ DEV=$(sudo rbd map cloneimg1)
 288   $ blkdiscard -o 720896 -l 2719744 $DEV
 289   $ hexdump $DEV
 290   0000000 abab abab abab abab abab abab abab abab
 291   *
 292   0400000
 293   $ sudo rbd unmap $DEV
 294
 295   $ rbd clone img@snap cloneimg2
 296   $ DEV=$(sudo rbd map cloneimg2)
 297   $ blkdiscard -o 1474560 -l 2719744 $DEV
 298   $ hexdump $DEV
 299   0000000 abab abab abab abab abab abab abab abab
 300   *
 301   0400000
 302   $ sudo rbd unmap $DEV
 303
 304   $ rbd clone img@snap cloneimg3
 305   $ DEV=$(sudo rbd map cloneimg3)
 306   $ blkdiscard -o 0 -l 4194304 $DEV
 307   $ hexdump $DEV
 308   0000000 abab abab abab abab abab abab abab abab
 309   *
 310   0400000
 311   $ sudo rbd unmap $DEV
 312
 313 Full clone:
 314
 315   $ rbd clone img@snap cloneimg4
 316   $ DEV=$(sudo rbd map cloneimg4)
 317
 318   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 319   $ blkdiscard -o 720896 -l 2719744 $DEV
 320   $ hexdump $DEV
 321   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 322   *
 323   00b0000 0000 0000 0000 0000 0000 0000 0000 0000
 324   *
 325   0340000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 326   *
 327   0400000
 328
 329   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 330   $ blkdiscard -o 1474560 -l 2719744 $DEV
 331   $ hexdump $DEV
 332   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 333   *
 334   0170000 0000 0000 0000 0000 0000 0000 0000 0000
 335   *
 336   0400000
 337
 338   $ xfs_io -c 'pwrite -w 0 4M' $DEV >/dev/null
 339   $ blkdiscard -o 0 -l 4194304 $DEV
 340   $ hexdump $DEV
 341   0000000 0000 0000 0000 0000 0000 0000 0000 0000
 342   *
 343   0400000
 344
 345   $ sudo rbd unmap $DEV
 346
 347 Multiple object requests:
 348
 349   $ rbd create --size 50M --stripe-unit 16K --stripe-count 5 fancyimg
 350   $ DEV=$(sudo rbd map fancyimg)
 351
 352   $ xfs_io -c 'pwrite -b 4M -w 0 50M' $DEV >/dev/null
 353   $ blkdiscard -o 0 -l 143360 $DEV
 354   $ hexdump $DEV
 355   0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 356   *
 357   3200000
 358
 359   $ xfs_io -c 'pwrite -b 4M -w 0 50M' $DEV >/dev/null
 360   $ blkdiscard -o 0 -l 286720 $DEV
 361   $ hexdump $DEV
 362   0000000 0000 0000 0000 0000 0000 0000 0000 0000
 363   *
 364   0008000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 365   *
 366   0014000 0000 0000 0000 0000 0000 0000 0000 0000
 367   *
 368   001c000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 369   *
 370   0028000 0000 0000 0000 0000 0000 0000 0000 0000
 371   *
 372   0030000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 373   *
 374   003c000 0000 0000 0000 0000 0000 0000 0000 0000
 375   *
 376   0044000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 377   *
 378   3200000
 379
 380   $ xfs_io -c 'pwrite -b 4M -w 0 50M' $DEV >/dev/null
 381   $ blkdiscard -o 0 -l 573440 $DEV
 382   $ hexdump $DEV
 383   0000000 0000 0000 0000 0000 0000 0000 0000 0000
 384   *
 385   0050000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
 386   *
 387   3200000
 388
 389   $ sudo rbd unmap $DEV
 390
 391   $ rbd rm --no-progress fancyimg
 392   $ rbd rm --no-progress cloneimg4
 393   $ rbd rm --no-progress cloneimg3
 394   $ rbd rm --no-progress cloneimg2
 395   $ rbd rm --no-progress cloneimg1
 396   $ rbd snap unprotect img@snap
 397   $ rbd snap rm --no-progress img@snap
 398   $ rbd rm --no-progress img