Hp StorageWorks 500 G2 Modular Smart Array Manuale Utente Scaricare il pdf (Pagina 83)

Troubleshooting 83

• The rotational speed of the hard drives

• The availability of drive cache

• The brand, model, and age of the drives

• The amount of unused capacity on the drives

• The number of drives in the array (for RAID 5 and RAID ADG)

Allow approximately 15 minutes per gigabyte for the rebuild process to be

completed. This figure is conservative, and newer drive models usually require

less time to rebuild.

System performance is affected during the rebuild, and the system is unprotected

against further drive failure until the rebuild has finished. Therefore, replace

drives during periods of low activity when possible.

CAUTION: If the Online LED of the replacement drive stops

blinking and the amber Fault LED glows, or if other drive LEDs in the

array go out, the replacement drive has failed and is producing

unrecoverable disk errors. Remove and replace the failed replacement

drive.

When automatic data recovery has finished, the Online LED of the replacement

drive stops blinking and begins to glow steadily.

Failure of another drive during rebuild

If a non-correctable read error occurs on another physical drive in the array

during the rebuild process, the Online LED of the replacement drive stops

blinking and the rebuild abnormally terminates.

If this situation occurs, reboot the server. The system may temporarily become

operational long enough to allow recovery of unsaved data. In any case, locate

the faulty drive, replace it, and restore data from backup.

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Hp StorageWorks 500 G2 Modular Smart Array Manuale Utente Pagina 83