Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 214)

Chapter 11. 3DM2 Reference
202 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.2
includes the Intelligent Read Prefetch (IRP) feature, which can improve
performance at higher queue depth in multiple read only or mixed read/write
stream environments. For additional information, see “Working with Read
Cache Settings” on page 104.
Auto-Verify. Enabling Auto-Verify ensures that a verify takes place following
either the Basic Auto-Verify schedule or the Advanced Auto-Verify schedule.
For details, see “Enabling or Disabling Auto-Verify for a Unit” on page 107.
When Auto-Verify is not enabled, verify tasks are only run if you manually
request one on the 3DM2
Management page or in event of an unclean
shutdown.
Overwrite ECC (Continue on Source Error When Rebuilding). This policy
applies only to units which are redundant. (For units which are not redundant,
a check box is not available.) When this policy is set, ECC errors are ignored
when they are encountered during a rebuild. When this policy is not set, a
rebuild will abort upon encountering an ECC error and the unit will be set
back to Degraded.
Since this option could result in the loss of some source data in the event of
source errors, select this option only if you want to ensure that a rebuild will
complete successfully without manual intervention. If the rebuild fails and
Overwrite ECC is not selected, then you have the option to start a rebuild
manually. It is recommended that you execute a file system check when the
rebuild completes.
Under FreeBSD use the fsck utility command. For example, fsck /dev/
sda1 .
Under Linux use the fsck utility command. For example, fsck /dev/sda1 .
On Mac OS, you can do this using the First Aid tab in the Disk Utility—select
the disk on the left and then click
Verify Disk . If verification encounters
problems, you can then use the Repair Disk option on the same screen.
For OpenSolaris you should follow your operating system’s guide to perform
a file system check.
Under Windows, you can do this by right-clicking on the Drive and choosing
Properties; then on the Tools tab, click Check Now.
For VMware you should follow your operating system’s guide to perform a
file system check.
Note: The policy Overwrite ECC is equivalent to the “Continue on Source Error”
option in 3BM and the “IgnoreECC” option in the CLI.