DVAS Instruction Manual System Menu | EN 35 |
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•Set Rebuild Priority
Use this setting to increase the amount of IO time dedicated to rebuilding a critical array. If host activity is high, a higher rebuild priority may be needed so the array rebuild completes in a shorter time period.
•Set Verify Utility
Set either Surface Scanning or Parity Scrub for the next array verify utility, once the utility interval has expired. Surface Scanning uses very little array IO time, whereas Parity Scrub uses much more. Surface scanning ensures that all data blocks on all array disks are readable. Parity Scrub reads all array data and ensures parity (redundant) data is intact. Any parity inconsistencies will be corrected. Both utilities will correct (where possible) unreadable blocks, by using the parity data to rebuild missing data onto a remapped block.
Click Execute Verify Utility NOW to force the selected array utility to run now.
•Set Verify Utility Execute Interval
Use the above settings to set the internal time between verify cycles, or click Execute verify utility NOW to start the selected verify utility.
Disable Dangerous Commands Confirm, and click Disable Dangerous Commands, to put the GUI into this mode. In this mode, any configuration commands that will cause data loss or result in loss of host communications are not permitted.
Read Only
Confirm and click Read Only, and no configuration of the ATA RAID system is permitted.
•Reboot Controller
Click Reboot Controller to reboot the ATA RAID controller. While rebooting, configured arrays and volumes are not accessible from the attached host system(s). Before using this function, it is advised to cease all host IO. It may also be necessary to reboot the host system(s) once the RAID controller has rebooted.
•Set Spare Mode
Inserted Disks Automatically used as Hot Spares Any disk not belonging to a RAID array will be used as a hot spare/rebuild disk. A hot spare disk must be at least the same capacity as the smallest RAID array member.
Inserted disks must be manually configured as hot spares. No newly inserted disk or existing unused disk will be used as a rebuild disk. The disk must first be configured as a hot spare, so it can be used by a degraded/critical array.
10 LOG OFF
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Bosch Security Systems 20 January 2004
