bad nard drive?

hi all,

when I migrated my disk primary pool /u01/backuppool to my tape primary
pool, I got the following error. Does it mean that I am having a bad hard
drive? Thanks for any suggestion.

ANR9999D blkdisk.c(1236): Error reading from disk /u01/backuppool.
ANR9999D dsrtrv.c(524): Error on volume /u01/backuppool: execRc=-1,
summaryRc=-1.
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157306
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157307
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157308
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157309
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157310
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157311
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157312
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157313
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157314
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157315
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157316
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157317
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157318
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157319
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157320
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157321
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157322
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157323
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157324
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157325
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157326
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157327
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157328
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157329
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157330
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157331
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157332
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157333
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157334
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157335
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157336
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157337
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157338
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157339
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157340
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157341
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157342
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157343
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157344
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157345
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157346
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157347
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157348
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157349
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157350
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157351
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157352
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157353
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157354
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157355
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157356
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157357
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157358
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157359
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157360
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157361
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157362
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157363
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157364
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157365
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157366
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157367
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157368
ANR9999D dsrtrv.c(527):   --> Volume /u01/backuppool, Logical Block 157369
______________________________
Jie Wu
System and Storage Administrator
R.O.W. Sciencec Inc. @ NCTR FDA
ph: 870-543-7958 fax:870-543-7382