Errors encountered with storage pools

The analysis of those errors which may be encountered while dealing with the storage pools.

These are error encountered with policies and how to analyze them:
  1. Access time to one pool appears slower than the others.

    A consequence of striping data across the disks is that the I/O throughput is limited by the slowest device. A device encountering hardware errors or recovering from hardware errors may effectively limit the throughput to all devices. However using storage pools, striping is done only across the disks assigned to the pool. Thus a slow disk impacts only its own pool; all other pools are not impeded.

    To correct the problem, check the connectivity and error logs for all disks in the slow pool.

  2. Other storage pool problems might really be disk problems and should be pursued from the standpoint of making sure that your disks are properly configured and operational. See Disk issues.